npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

istanbul-lite

v2020.11.12

Published

this zero-dependency package will provide browser-compatible version of istanbul coverage-tool (v0.4.5), with working web-demo

Downloads

312

Readme

istanbul-lite

this zero-dependency package will provide browser-compatible version of istanbul coverage-tool (v0.4.5), with working web-demo

live web demo

screenshot

travis-ci.com build-status coverage

NPM

build commit status

| git-branch : | master | beta | alpha| |--:|:--|:--|:--| | test-server-github : | github.com test-server | github.com test-server | github.com test-server| | test-server-heroku : | heroku.com test-server | heroku.com test-server | heroku.com test-server| | test-report : | test-report | test-report | test-report| | coverage : | coverage | coverage | coverage| | build-artifacts : | build-artifacts | build-artifacts | build-artifacts|

npmPackageListing

npmPackageDependencyTree

table of contents

  1. cdn download
  2. documentation
  3. quickstart standalone app
  4. quickstart example.js
  5. extra screenshots
  6. package.json
  7. changelog of last 50 commits
  8. internal build script
  9. misc

cdn download

documentation

api doc

apidoc

cli help

screenshot

changelog 2020.11.12

  • update build
  • none

todo

  • istanbul - inline class Instrumenter into function instrumentSync
  • none

additional info

  • istanbul code derived from https://github.com/gotwarlost/istanbul/tree/v0.4.5

quickstart standalone app

to run this example, follow instruction in script below

# example.sh

# this shell script will download and run web-demo of istanbul-lite as standalone app

# 1. download standalone app
curl -O https://kaizhu256.github.io/node-istanbul-lite/build..beta..travis-ci.com/app/assets.app.js
# 2. run standalone app
PORT=8081 node ./assets.app.js
# 3. open browser to http://127.0.0.1:8081 and play with web-demo
# 4. edit file assets.app.js to suit your needs

output from browser

screenshot

output from shell

screenshot

quickstart example.js

screenshot

to run this example, follow instruction in script below

/*
example.js

this script will run web-demo of istanbul-lite

instruction
    1. save this script as example.js
    2. run shell-command:
        $ npm install istanbul-lite && \
            PORT=8081 node example.js
    3. open browser to http://127.0.0.1:8081 and play with web-demo
    4. edit this script to suit your needs
*/


/* istanbul instrument in package istanbul */
// assets.utility2.header.js - start
/* jslint utility2:true */
/* istanbul ignore next */
// run shared js-env code - init-local
(function () {
    "use strict";
    let isBrowser;
    let isWebWorker;
    let local;
    // polyfill globalThis
    if (!(typeof globalThis === "object" && globalThis)) {
        if (typeof window === "object" && window && window.window === window) {
            window.globalThis = window;
        }
        if (typeof global === "object" && global && global.global === global) {
            global.globalThis = global;
        }
    }
    // init debugInline
    if (!globalThis.debugInline) {
        let consoleError;
        consoleError = console.error;
        globalThis.debugInline = function (...argList) {
        /*
         * this function will both print <argList> to stderr
         * and return <argList>[0]
         */
            consoleError("\n\ndebugInline");
            consoleError(...argList);
            consoleError("\n");
            return argList[0];
        };
    }
    // init isBrowser
    isBrowser = (
        typeof globalThis.XMLHttpRequest === "function"
        && globalThis.navigator
        && typeof globalThis.navigator.userAgent === "string"
    );
    // init isWebWorker
    isWebWorker = (
        isBrowser && typeof globalThis.importScripts === "function"
    );
    // init function
    function objectDeepCopyWithKeysSorted(obj) {
    /*
     * this function will recursively deep-copy <obj> with keys sorted
     */
        let sorted;
        if (typeof obj !== "object" || !obj) {
            return obj;
        }
        // recursively deep-copy list with child-keys sorted
        if (Array.isArray(obj)) {
            return obj.map(objectDeepCopyWithKeysSorted);
        }
        // recursively deep-copy obj with keys sorted
        sorted = {};
        Object.keys(obj).sort().forEach(function (key) {
            sorted[key] = objectDeepCopyWithKeysSorted(obj[key]);
        });
        return sorted;
    }
    function assertJsonEqual(aa, bb) {
    /*
     * this function will assert JSON.stringify(<aa>) === JSON.stringify(<bb>)
     */
        aa = JSON.stringify(objectDeepCopyWithKeysSorted(aa));
        bb = JSON.stringify(objectDeepCopyWithKeysSorted(bb));
        if (aa !== bb) {
            throw new Error(JSON.stringify(aa) + " !== " + JSON.stringify(bb));
        }
    }
    function assertOrThrow(passed, msg) {
    /*
     * this function will throw <msg> if <passed> is falsy
     */
        if (passed) {
            return;
        }
        throw (
            (
                msg
                && typeof msg.message === "string"
                && typeof msg.stack === "string"
            )
            // if msg is err, then leave as is
            ? msg
            : new Error(
                typeof msg === "string"
                // if msg is string, then leave as is
                ? msg
                // else JSON.stringify(msg)
                : JSON.stringify(msg, undefined, 4)
            )
        );
    }
    function coalesce(...argList) {
    /*
     * this function will coalesce null, undefined, or "" in <argList>
     */
        let arg;
        let ii;
        ii = 0;
        while (ii < argList.length) {
            arg = argList[ii];
            if (arg !== undefined && arg !== null && arg !== "") {
                return arg;
            }
            ii += 1;
        }
        return arg;
    }
    function identity(val) {
    /*
     * this function will return <val>
     */
        return val;
    }
    function noop() {
    /*
     * this function will do nothing
     */
        return;
    }
    function objectAssignDefault(tgt = {}, src = {}, depth = 0) {
    /*
     * this function will if items from <tgt> are null, undefined, or "",
     * then overwrite them with items from <src>
     */
        let recurse;
        recurse = function (tgt, src, depth) {
            Object.entries(src).forEach(function ([
                key, bb
            ]) {
                let aa;
                aa = tgt[key];
                if (aa === undefined || aa === null || aa === "") {
                    tgt[key] = bb;
                    return;
                }
                if (
                    depth !== 0
                    && typeof aa === "object" && aa && !Array.isArray(aa)
                    && typeof bb === "object" && bb && !Array.isArray(bb)
                ) {
                    recurse(aa, bb, depth - 1);
                }
            });
        };
        recurse(tgt, src, depth | 0);
        return tgt;
    }
    function onErrorThrow(err) {
    /*
     * this function will throw <err> if exists
     */
        if (err) {
            throw err;
        }
    }
    // bug-workaround - throw unhandledRejections in node-process
    if (
        typeof process === "object" && process
        && typeof process.on === "function"
        && process.unhandledRejections !== "strict"
    ) {
        process.unhandledRejections = "strict";
        process.on("unhandledRejection", function (err) {
            throw err;
        });
    }
    // init local
    local = {
        assertJsonEqual,
        assertOrThrow,
        coalesce,
        identity,
        isBrowser,
        isWebWorker,
        local,
        noop,
        objectAssignDefault,
        objectDeepCopyWithKeysSorted,
        onErrorThrow
    };
    globalThis.globalLocal = local;
}());
// assets.utility2.header.js - end


/* jslint utility2:true */
(function (local) {
"use strict";


// run shared js-env code - init-before
(function () {
// init local
local = (
    globalThis.utility2_rollup
    || globalThis.utility2_istanbul
    || require("istanbul-lite")
);
// init exports
globalThis.local = local;
}());


/* istanbul ignore next */
// run browser js-env code - init-test
(function () {
if (!local.isBrowser) {
    return;
}
// log stderr and stdout to #outputStdout1
["error", "log"].forEach(function (key) {
    let elem;
    let fnc;
    elem = document.querySelector("#outputStdout1");
    if (!elem) {
        return;
    }
    fnc = console[key];
    console[key] = function (...argList) {
        fnc(...argList);
        // append text to #outputStdout1
        elem.textContent += argList.map(function (arg) {
            return (
                typeof arg === "string"
                ? arg
                : JSON.stringify(arg, undefined, 4)
            );
        }).join(" ").replace((
            /\u001b\[\d*m/g
        ), "") + "\n";
        // scroll textarea to bottom
        elem.scrollTop = elem.scrollHeight;
    };
});
local.objectAssignDefault(local, globalThis.domOnEventDelegateDict);
globalThis.domOnEventDelegateDict = local;
}());


/* istanbul ignore next */
// run node js-env code - init-test
(function () {
if (local.isBrowser) {
    return;
}
// init exports
module.exports = local;
// init assetsDict
local.assetsDict = local.assetsDict || {};
/* jslint ignore:start */
local.assetsDict["/assets.index.template.html"] = '\
<!doctype html>\n\
<html lang="en">\n\
<head>\n\
<meta charset="utf-8">\n\
<meta name="viewport" content="width=device-width, initial-scale=1">\n\
<!-- "assets.utility2.template.html" -->\n\
<title>{{env.npm_package_name}} ({{env.npm_package_version}})</title>\n\
<style>\n\
/* jslint utility2:true */\n\
/*csslint\n\
*/\n\
/* csslint ignore:start */\n\
*,\n\
*:after,\n\
*:before {\n\
    box-sizing: border-box;\n\
}\n\
.uiAnimateSlide {\n\
    overflow-y: hidden;\n\
    transition: max-height ease-in 250ms, min-height ease-in 250ms, padding-bottom ease-in 250ms, padding-top ease-in 250ms;\n\
}\n\
/* csslint ignore:end */\n\
@keyframes uiAnimateSpin {\n\
0% {\n\
    transform: rotate(0deg);\n\
}\n\
100% {\n\
    transform: rotate(360deg);\n\
}\n\
}\n\
a {\n\
    overflow-wrap: break-word;\n\
}\n\
body {\n\
    background: #f7f7f7;\n\
    font-family: Arial, Helvetica, sans-serif;\n\
    font-size: small;\n\
    margin: 0 40px;\n\
}\n\
body > div,\n\
body > input,\n\
body > pre,\n\
body > .button,\n\
body > .textarea {\n\
    margin-bottom: 20px;\n\
    margin-top: 0;\n\
}\n\
body > input,\n\
body > .button {\n\
    width: 20rem;\n\
}\n\
body > .readonly {\n\
    background: #ddd;\n\
}\n\
body > .textarea {\n\
    height: 10rem;\n\
    resize: vertical;\n\
    width: 100%;\n\
}\n\
code,\n\
pre,\n\
.textarea {\n\
    font-family: Consolas, Menlo, monospace;\n\
    font-size: smaller;\n\
}\n\
pre {\n\
    overflow-wrap: break-word;\n\
    white-space: pre-wrap;\n\
}\n\
.button {\n\
    background: #ddd;\n\
    border: 1px solid #999;\n\
    color: #000;\n\
    cursor: pointer;\n\
    display: inline-block;\n\
    padding: 2px 5px;\n\
    text-align: center;\n\
    text-decoration: none;\n\
}\n\
.button:hover {\n\
    background: #bbb;\n\
}\n\
.colorError {\n\
    color: #d00;\n\
}\n\
.textarea {\n\
    background: #fff;\n\
    border: 1px solid #999;\n\
    border-radius: 0;\n\
    cursor: auto;\n\
    overflow: auto;\n\
    padding: 2px;\n\
}\n\
.zeroPixel {\n\
    border: 0;\n\
    height: 0;\n\
    margin: 0;\n\
    padding: 0;\n\
    width: 0;\n\
}\n\
</style>\n\
</head>\n\
<body>\n\
<div class="uiAnimateSpin" style="animation: uiAnimateSpin 2s linear infinite; border: 5px solid #999; border-radius: 50%; border-top: 5px solid #7d7; display: none; height: 25px; vertical-align: middle; width: 25px;"></div>\n\
<script>\n\
/* jslint utility2:true */\n\
// polyfill globalThis\n\
(function () {\n\
/*\n\
 * this function will polyfill globalThis\n\
 */\n\
    "use strict";\n\
    window.globalThis = window.globalThis || globalThis;\n\
}());\n\
\n\
\n\
// init domOnEventWindowOnloadTimeElapsed\n\
(function () {\n\
/*\n\
 * this function will measure and print time-elapsed for window.onload\n\
 */\n\
    "use strict";\n\
    if (!(\n\
        typeof window === "object" && window && window.document\n\
        && typeof document.addEventListener === "function"\n\
    ) || window.domOnEventWindowOnloadTimeElapsed) {\n\
        return;\n\
    }\n\
    window.domOnEventWindowOnloadTimeElapsed = Date.now() + 100;\n\
    window.addEventListener("load", function () {\n\
        setTimeout(function () {\n\
            window.domOnEventWindowOnloadTimeElapsed = (\n\
                Date.now()\n\
                - window.domOnEventWindowOnloadTimeElapsed\n\
            );\n\
            console.error(\n\
                "domOnEventWindowOnloadTimeElapsed = "\n\
                + window.domOnEventWindowOnloadTimeElapsed\n\
            );\n\
        }, 100);\n\
    });\n\
}());\n\
\n\
\n\
// init domOnEventAjaxProgressUpdate\n\
(function () {\n\
/*\n\
 * this function will display incrementing ajax-progress-bar\n\
 */\n\
    "use strict";\n\
    let opt;\n\
    let styleBar0;\n\
    let styleBar;\n\
    let styleModal0;\n\
    let styleModal;\n\
    let timeStart;\n\
    let timerInterval;\n\
    let timerTimeout;\n\
    let tmp;\n\
    let width;\n\
    try {\n\
        if (\n\
            window.domOnEventAjaxProgressUpdate\n\
            || !document.getElementById("domElementAjaxProgressBar1").style\n\
        ) {\n\
            return;\n\
        }\n\
    } catch (ignore) {\n\
        return;\n\
    }\n\
    window.domOnEventAjaxProgressUpdate = function (gotoState, onError) {\n\
        gotoState = (gotoState | 0) + 1;\n\
        switch (gotoState) {\n\
        // ajaxProgress - show\n\
        case 1:\n\
            // init timerInterval and timerTimeout\n\
            if (!timerTimeout) {\n\
                timeStart = Date.now();\n\
                timerInterval = setInterval(opt, 2000, 1, onError);\n\
                timerTimeout = setTimeout(opt, opt.timeout, 2, onError);\n\
            }\n\
            // show ajaxProgressBar\n\
            if (width !== -1) {\n\
                styleBar.background = styleBar0.background;\n\
            }\n\
            setTimeout(opt, 50, gotoState, onError);\n\
            break;\n\
        // ajaxProgress - increment\n\
        case 2:\n\
            // show ajaxProgressBar\n\
            if (width === -1) {\n\
                break;\n\
            }\n\
            styleBar.background = styleBar0.background;\n\
            // reset ajaxProgress if it reaches end\n\
            if ((styleBar.width.slice(0, -1) | 0) > 95) {\n\
                width = 0;\n\
            }\n\
            // this algorithm will indefinitely increment ajaxProgress\n\
            // with successively smaller increments without reaching 100%\n\
            width += 1;\n\
            styleBar.width = Math.max(\n\
                100 - 75 * Math.exp(-0.125 * width),\n\
                styleBar.width.slice(0, -1) | 0\n\
            ) + "%";\n\
            // show ajaxProgressModal\n\
            styleModal.height = "100%";\n\
            styleModal.opacity = styleModal0.opacity;\n\
            if (!opt.cnt) {\n\
                setTimeout(opt, 0, gotoState, onError);\n\
            }\n\
            break;\n\
        // ajaxProgress - 100%\n\
        case 3:\n\
            width = -1;\n\
            styleBar.width = "100%";\n\
            setTimeout(opt, 1000, gotoState, onError);\n\
            break;\n\
        // ajaxProgress - hide\n\
        case 4:\n\
            // debug timeElapsed\n\
            tmp = Date.now();\n\
            console.error(\n\
                "domOnEventAjaxProgressUpdate - timeElapsed - "\n\
                + (tmp - timeStart)\n\
                + " ms"\n\
            );\n\
            // cleanup timerInterval and timerTimeout\n\
            timeStart = tmp;\n\
            clearInterval(timerInterval);\n\
            timerInterval = undefined;\n\
            clearTimeout(timerTimeout);\n\
            timerTimeout = undefined;\n\
            // hide ajaxProgressBar\n\
            styleBar.background = "transparent";\n\
            // hide ajaxProgressModal\n\
            styleModal.opacity = "0";\n\
            if (onError) {\n\
                onError();\n\
            }\n\
            setTimeout(opt, 250, gotoState);\n\
            break;\n\
        // ajaxProgress - reset\n\
        default:\n\
            opt.cnt = 0;\n\
            width = 0;\n\
            styleBar.width = "0%";\n\
            styleModal.height = "0";\n\
        }\n\
    };\n\
    opt = window.domOnEventAjaxProgressUpdate;\n\
    opt.end = function (onError) {\n\
        opt.cnt = 0;\n\
        window.domOnEventAjaxProgressUpdate(2, onError);\n\
    };\n\
    // init styleBar\n\
    styleBar = document.getElementById("domElementAjaxProgressBar1").style;\n\
    styleBar0 = Object.assign({}, styleBar);\n\
    Object.entries({\n\
        background: "#d00",\n\
        height: "2px",\n\
        left: "0",\n\
        margin: "0",\n\
        padding: "0",\n\
        position: "fixed",\n\
        top: "0",\n\
        transition: "background 250ms, width 750ms",\n\
        width: "0%",\n\
        "z-index": "1"\n\
    }).forEach(function (entry) {\n\
        styleBar[entry[0]] = styleBar[entry[0]] || entry[1];\n\
    });\n\
    // init styleModal\n\
    styleModal = document.getElementById("domElementAjaxProgressModal1") || {};\n\
    styleModal = styleModal.style || {};\n\
    styleModal0 = Object.assign({}, styleModal);\n\
    Object.entries({\n\
        height: "0",\n\
        left: "0",\n\
        margin: "0",\n\
        padding: "0",\n\
        position: "fixed",\n\
        top: "0",\n\
        transition: "opacity 125ms",\n\
        width: "100%",\n\
        "z-index": "1"\n\
    }).forEach(function (entry) {\n\
        styleModal[entry[0]] = styleModal[entry[0]] || entry[1];\n\
    });\n\
    // init state\n\
    width = 0;\n\
    opt.cnt = 0;\n\
    opt.timeout = 30000;\n\
    // init ajaxProgress\n\
    window.domOnEventAjaxProgressUpdate();\n\
}());\n\
\n\
\n\
// init domOnEventDelegateDict\n\
(function () {\n\
/*\n\
 * this function will handle delegated dom-evt\n\
 */\n\
    "use strict";\n\
    let debounce;\n\
    let timerTimeout;\n\
    debounce = function () {\n\
        return setTimeout(function () {\n\
            timerTimeout = undefined;\n\
        }, 30);\n\
    };\n\
    if (!(\n\
        typeof window === "object" && window && window.document\n\
        && typeof document.addEventListener === "function"\n\
    ) || window.domOnEventDelegateDict) {\n\
        return;\n\
    }\n\
    window.domOnEventDelegateDict = {};\n\
    window.domOnEventDelegateDict.domOnEventDelegate = function (evt) {\n\
        evt.targetOnEvent = evt.target.closest("[data-onevent]");\n\
        if (\n\
            !evt.targetOnEvent\n\
            || evt.targetOnEvent.dataset.onevent === "domOnEventNoop"\n\
            || evt.target.closest(".disabled,.readonly")\n\
        ) {\n\
            return;\n\
        }\n\
        // filter evt-change\n\
        switch (evt.type !== "change" && evt.target.type) {\n\
        case "checkbox":\n\
        case "file":\n\
        case "select-one":\n\
        case "radio":\n\
            return;\n\
        }\n\
        // filter evt-keyup\n\
        switch (evt.type) {\n\
        case "keyup":\n\
            if (!timerTimeout && (\n\
                evt.target.tagName === "INPUT"\n\
                || evt.target.tagName === "TEXTAREA"\n\
            )) {\n\
                timerTimeout = debounce();\n\
                if (evt.target.dataset.valueOld !== evt.target.value) {\n\
                    evt.target.dataset.valueOld = evt.target.value;\n\
                    break;\n\
                }\n\
            }\n\
            return;\n\
        }\n\
        switch (evt.targetOnEvent.tagName) {\n\
        case "BUTTON":\n\
        case "FORM":\n\
            evt.preventDefault();\n\
            break;\n\
        }\n\
        evt.stopPropagation();\n\
        // handle domOnEventClickTarget\n\
        if (evt.targetOnEvent.dataset.onevent === "domOnEventClickTarget") {\n\
            document.querySelector(\n\
                evt.targetOnEvent.dataset.clickTarget\n\
            ).click();\n\
            return;\n\
        }\n\
        window.domOnEventDelegateDict[evt.targetOnEvent.dataset.onevent](evt);\n\
    };\n\
    // handle evt\n\
    [\n\
        "change",\n\
        "click",\n\
        "keyup",\n\
        "submit"\n\
    ].forEach(function (eventType) {\n\
        document.addEventListener(\n\
            eventType,\n\
            window.domOnEventDelegateDict.domOnEventDelegate\n\
        );\n\
    });\n\
}());\n\
\n\
\n\
// init domOnEventSelectAllWithinPre\n\
(function () {\n\
/*\n\
 * this function will limit select-all within <pre tabIndex="0"> elem\n\
 * https://stackoverflow.com/questions/985272/selecting-text-in-an-element-akin-to-highlighting-with-your-mouse\n\
 */\n\
    "use strict";\n\
    if (!(\n\
        typeof window === "object" && window && window.document\n\
        && typeof document.addEventListener === "function"\n\
    ) || window.domOnEventSelectAllWithinPre) {\n\
        return;\n\
    }\n\
    window.domOnEventSelectAllWithinPre = function (evt) {\n\
        let range;\n\
        let selection;\n\
        if (\n\
            evt && (evt.ctrlKey || evt.metaKey) && evt.key === "a"\n\
            && evt.target.closest("pre")\n\
        ) {\n\
            range = document.createRange();\n\
            range.selectNodeContents(evt.target.closest("pre"));\n\
            selection = window.getSelection();\n\
            selection.removeAllRanges();\n\
            selection.addRange(range);\n\
            evt.preventDefault();\n\
        }\n\
    };\n\
    // handle evt\n\
    document.addEventListener(\n\
        "keydown",\n\
        window.domOnEventSelectAllWithinPre\n\
    );\n\
}());\n\
</script>\n\
<h1>\n\
<!-- utility2-comment\n\
<a\n\
    {{#if env.npm_package_homepage}}\n\
    href="{{env.npm_package_homepage}}"\n\
    {{/if env.npm_package_homepage}}\n\
    target="_blank"\n\
>\n\
utility2-comment -->\n\
    {{env.npm_package_name}} ({{env.npm_package_version}})\n\
<!-- utility2-comment\n\
</a>\n\
utility2-comment -->\n\
</h1>\n\
<h3>{{env.npm_package_description}}</h3>\n\
<!-- utility2-comment\n\
<a class="button" download href="assets.app.js">download standalone app</a><br>\n\
<button class="button" data-onevent="testRunBrowser" id="buttonTestRun1">run browser-tests</button><br>\n\
<div class="uiAnimateSlide" id="htmlTestReport1" style="border-bottom: 0; border-top: 0; margin-bottom: 0; margin-top: 0; max-height: 0; padding-bottom: 0; padding-top: 0;"></div>\n\
utility2-comment -->\n\
\n\
\n\
<!-- custom-html-start -->\n\
<label>edit or paste script below to instrument and cover</label>\n\
<textarea class="textarea" data-onevent="domOnEventInputChange" id="inputTextarea1">\n\
if (true) {\n\
    console.log("hello");\n\
} else {\n\
    console.log("bye");\n\
}\n\
let fibonacci = {\n\
    [Symbol.iterator]() {\n\
        let pre = 0, cur = 1;\n\
        return {\n\
            next() {\n\
                [pre, cur] = [cur, pre + cur];\n\
                return { done: false, value: cur }\n\
            }\n\
        }\n\
    }\n\
}\n\
for (var n of fibonacci) {\n\
    // truncate the sequence at 1000\n\
    if (n > 1000)\n\
        break;\n\
    console.log(n);\n\
}\n\
</textarea>\n\
<label>instrumented-code</label>\n\
<textarea class="onevent-reset-output readonly textarea" id="outputTextarea1" readonly></textarea>\n\
<label>stderr and stdout</label>\n\
<textarea class="readonly textarea" id="outputStdout1" readonly></textarea>\n\
<div id="htmlCoverageReport1"></div>\n\
<script>\n\
/* jslint utility2:true */\n\
window.addEventListener("load", function () {\n\
"use strict";\n\
let local;\n\
local = window.utility2_istanbul;\n\
local.domOnEventInputChange = function (evt) {\n\
    switch (evt.type + "." + evt.target.id) {\n\
    case "keyup.inputTextarea1":\n\
        // try to cleanup __coverage__\n\
        try {\n\
            delete globalThis.__coverage__["/inputTextarea1.js"];\n\
        } catch (ignore) {}\n\
        // try to cover and eval #inputTextarea1\n\
        try {\n\
            document.querySelector(\n\
                "#outputTextarea1"\n\
            ).textContent = local.istanbul.instrumentSync(\n\
                document.querySelector("#inputTextarea1").value,\n\
                "/inputTextarea1.js"\n\
            );\n\
            eval( // jslint ignore:line\n\
                document.querySelector("#outputTextarea1").value\n\
            );\n\
            document.querySelector(\n\
                "#htmlCoverageReport1"\n\
            ).innerHTML = local.istanbul.coverageReportCreate({\n\
                coverage: globalThis.__coverage__\n\
            });\n\
        } catch (errCaught) {\n\
            console.error(errCaught);\n\
        }\n\
        break;\n\
    }\n\
};\n\
// handle evt\n\
local.domOnEventInputChange({\n\
    target: {\n\
        id: "inputTextarea1"\n\
    },\n\
    type: "keyup"\n\
});\n\
});\n\
</script>\n\
<!-- custom-html-end -->\n\
\n\
\n\
<!-- utility2-comment\n\
{{#if isRollup}}\n\
<script src="assets.app.js"></script>\n\
{{#unless isRollup}}\n\
<script src="assets.utility2.rollup.js"></script>\n\
<script>window.utility2_onReadyBefore.cnt += 1;</script>\n\
<script src="utility2.state.init.js"></script>\n\
utility2-comment -->\n\
<script src="assets.istanbul.js"></script>\n\
<script src="assets.example.js"></script>\n\
<script src="assets.test.js"></script>\n\
<script>\n\
if (window.utility2_onReadyBefore) {\n\
    window.utility2_onReadyBefore();\n\
}\n\
</script>\n\
<!-- utility2-comment\n\
{{/if isRollup}}\n\
utility2-comment -->\n\
<div style="text-align: center;">\n\
    [\n\
    this app was created with\n\
    <a\n\
        href="https://github.com/kaizhu256/node-utility2" target="_blank"\n\
    >utility2</a>\n\
    ]\n\
</div>\n\
</body>\n\
</html>\n\
';
/* jslint ignore:end */
local.assetsDict["/assets.istanbul.js"] = (
    local.assetsDict["/assets.istanbul.js"]
    || require("fs").readFileSync(
        require("path").resolve(local.__dirname + "/lib.istanbul.js"),
        "utf8"
    ).replace((
        /^#!\//
    ), "// ")
);
/* validateLineSortedReset */
local.assetsDict["/"] = local.assetsDict[
    "/assets.index.template.html"
].replace((
    /\{\{env\.(\w+?)\}\}/g
), function (match0, match1) {
    switch (match1) {
    case "npm_package_description":
        return "the greatest app in the world!";
    case "npm_package_name":
        return "istanbul-lite";
    case "npm_package_nameLib":
        return "istanbul";
    case "npm_package_version":
        return "0.0.1";
    default:
        return match0;
    }
});
local.assetsDict["/assets.example.html"] = local.assetsDict["/"];
// init cli
if (module !== require.main || globalThis.utility2_rollup) {
    return;
}
local.assetsDict["/assets.example.js"] = (
    local.assetsDict["/assets.example.js"]
    || require("fs").readFileSync(__filename, "utf8")
);
local.assetsDict["/favicon.ico"] = local.assetsDict["/favicon.ico"] || "";
local.assetsDict["/index.html"] = local.assetsDict["/"];
// if $npm_config_timeout_exit exists,
// then exit this process after $npm_config_timeout_exit ms
if (Number(process.env.npm_config_timeout_exit)) {
    setTimeout(process.exit, Number(process.env.npm_config_timeout_exit));
}
// start server
if (globalThis.utility2_serverHttp1) {
    return;
}
process.env.PORT = process.env.PORT || "8081";
console.error("http-server listening on port " + process.env.PORT);
require("http").createServer(function (req, res) {
    let data;
    data = local.assetsDict[require("url").parse(req.url).pathname];
    if (data !== undefined) {
        res.end(data);
        return;
    }
    res.statusCode = 404;
    res.end();
}).listen(process.env.PORT);
}());
}());

output from browser

screenshot

output from shell

screenshot

extra screenshots

  1. https://kaizhu256.github.io/node-istanbul-lite/build/screenshot.buildCi.browser.%252F.tmp%252Fbuild%252Fapidoc.html.png screenshot

  2. https://kaizhu256.github.io/node-istanbul-lite/build/screenshot.buildCi.browser.%252F.tmp%252Fbuild%252Fcoverage.lib.html.png screenshot

  3. https://kaizhu256.github.io/node-istanbul-lite/build/screenshot.buildCi.browser.%252F.tmp%252Fbuild%252Ftest-report.html.png screenshot

  4. https://kaizhu256.github.io/node-istanbul-lite/build/screenshot.deployGithub.browser.%252Fnode-istanbul-lite%252Fbuild%252Fapp.png screenshot

  5. https://kaizhu256.github.io/node-istanbul-lite/build/screenshot.deployGithubTest.browser.%252Fnode-istanbul-lite%252Fbuild%252Fapp.png screenshot

  6. https://kaizhu256.github.io/node-istanbul-lite/build/screenshot.deployHeroku.browser.%252F.png screenshot

  7. https://kaizhu256.github.io/node-istanbul-lite/build/screenshot.deployHerokuTest.browser.%252F.png screenshot

  8. https://kaizhu256.github.io/node-istanbul-lite/build/screenshot.npmTest.browser.%252F.png screenshot

  9. https://kaizhu256.github.io/node-istanbul-lite/build/screenshot.testExampleJs.browser.%252F.png screenshot

  10. https://kaizhu256.github.io/node-istanbul-lite/build/screenshot.testExampleSh.browser.%252F.png screenshot

package.json

{
    "!!jslint_utility2": true,
    "author": "kai zhu <[email protected]>",
    "bin": {
        "istanbul-lite": "lib.istanbul.js"
    },
    "description": "this zero-dependency package will provide browser-compatible version of istanbul coverage-tool (v0.4.5), with working web-demo",
    "devDependencies": {
        "utility2": "kaizhu256/node-utility2#alpha"
    },
    "engines": {
        "node": ">=12.0"
    },
    "fileCount": 10,
    "homepage": "https://github.com/kaizhu256/node-istanbul-lite",
    "keywords": [
        "coverage",
        "istanbul"
    ],
    "license": "MIT",
    "main": "lib.istanbul.js",
    "name": "istanbul-lite",
    "nameAliasPublish": "",
    "nameLib": "istanbul",
    "nameOriginal": "istanbul-lite",
    "repository": {
        "type": "git",
        "url": "https://github.com/kaizhu256/node-istanbul-lite.git"
    },
    "scripts": {
        "build-ci": "./npm_scripts.sh",
        "env": "env",
        "eval": "./npm_scripts.sh",
        "heroku-postbuild": "./npm_scripts.sh",
        "postinstall": "./npm_scripts.sh",
        "start": "./npm_scripts.sh",
        "test": "./npm_scripts.sh",
        "utility2": "./npm_scripts.sh"
    },
    "version": "2020.11.12"
}

changelog of last 50 commits

screenshot

internal build script

  • build_ci.sh
# build_ci.sh

# this shell script will run build-ci for this package

shBuildCiAfter () {(set -e
    # shDeployCustom
    shDeployGithub
    shDeployHeroku
    shReadmeTest example.sh
)}

shBuildCiBefore () {(set -e
    shNpmTestPublished
    shReadmeTest example.js
)}

# run shBuildCi
eval "$(utility2 source)"
shBuildCi

misc