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colors-web

v0.1.3

Published

<image src="https://user-images.githubusercontent.com/897401/121880115-35413900-cd40-11eb-8b8c-702d557baae0.png" width=400 />

Downloads

67

Readme

colors-web

https://colors-web.js.org

一个自由度非常高的,在浏览器的控制台(Console)显示彩色文本的库,您可用以下方式显示。 目前还在开发更多功能中,有意见和想法请提 issues(格式无要求)

效果:

使用此库实现了一个在 console 里播放视频的功能,demo 地址:https://colors-web.js.org/dist/camera.html

在 console 里显示音频频谱的功能,demo 地址:https://colors-web.js.org/dist/audio.html

效果:

安装

npm install colors-web --save

使用

colors-web 支持以下特性:

  • 文字颜色和背景色
    • 支持 140 种 web 标准色值,见此文最后
    • 直接用列表中的颜色做方法调用
      • colors().red().greenBg();
    • 使用属性的方式链式调用
      • colors().red.greenBg.log('这是效果');
    • 自定义颜色
      • colors('#aaa');
      • colors('rgba(1,1,1,1)');
      • colors('red');
      • bg('#aaa');
      • bg('rgba(1,1,1,1)');
      • bg('red');
  • 其他文字样式,直接以方法调用
    • colors().bold();
    • colors().italic();
    • colors().padding(topbottom,rightleft);
    • colors().underline();
    • colors().linethrough();
    • colors().fontsize(size);
    • colors().fontfamily(familyName);
  • 其他特性
    • 何时传入需要显示的字符串?
      • 在任何一个链式调用的方法中传入都可以(以最后一个生效)
        • colors('字符串');
        • colors().red('字符串');
        • colors().red.greenBg('字符串');
      • 设置样式后,手动调用 log 方法设置字符串
        • colors().red.greenBg.log('字符串');
    • 所有 colors 的调用都会返回一个 colors 实例,所以可以放心一直串下去
  • 最后一步:调用 logger() 显示到 console 中
    • logger 可以传入两种对象:colors() 返回的实例,或 字符串,当传入字符串的时候,默认用灰色无背景的方式显示。

部分示例:

import { logger, colors } from "colors-web";
// 可指定输出
logger.source = console.log;
/**
 * 使用属性的方式链式调用
 */
logger(colors().red.greenBg.log("hello world"), "hello world", colors().green.log("芋头"));
/**
 * 直接用列表中的颜色做方法调用
 */
logger(colors().red().greenBg().log("hello world"), "hello world", colors().green("芋头"));
/**
 * 自定义颜色和北京
 */
logger(colors().color("red").bg("lightgrey").log("hello world"), "hello world", colors().green("芋头"));
/**
 * 除了颜色和背景色之外,支持其他 style,如 bold,italic,underline 等
 */
logger(
  colors().bold().redBg("hello"),
  colors().bold().italic().redBg("word"),
  colors().white().padding(2, 5).underline().greenBg("芋头")
);
/**
 * 支持 140 个css标准样式名,同时支持自定义颜色: colors().color("#333").bg("#aaa")
 */

现实案例

你可以使用颜色来区分不同的输出元素,例如,当你想实现一个用来分析渲染时间的模块时(对全局 console 进行了 hack,不推荐这样用):

import { logger, colors } from "colors-web";
const origlog = console.log;
let count = Date.now();
logger.source = origlog;
console.log = function (obj: string, ...placeholders: string[]) {
  const now = Date.now();
  logger(
    colors()
      .white()
      .padding(0, 3)
      .blueBg(now - count + "ms"),
    " ",
    obj,
    ...placeholders
  );
  count = now;
  //   logger.origlog.apply(this, placeholders);
};

效果:

开发

npm run start

todo

  • ~~补充 d.ts~~
  • 用原生 TypeScript 实现
  • 兼容 error ,warn 等 level,支持打印复杂对象
  • 单元测试
  • 兼容终端(Nodejs)

支持的颜色