cb-buffer
v2.1.9
Published
A minimalist NodeJS module for callback buffering.
Downloads
842
Readme
cb-buffer
A minimalist NodeJS module for callback buffering.
:cloud: Installation
# Using npm
npm install --save cb-buffer
# Using yarn
yarn add cb-buffer
:clipboard: Example
// Dependencies
const CallbackBuffering = require("cb-buffer");
// Create a new callback buffer
var cb = new CallbackBuffering();
// Callbacks a random unique number after 1 sec
function getUniqueRandomNumberAsync(callback) {
if (cb.check(callback)) { return; }
setTimeout(() => {
debugger
cb.done(Math.random());
}, 1000);
}
// Request the unique number few times.
// It should be unique, and generated once
getUniqueRandomNumberAsync(console.log);
getUniqueRandomNumberAsync(console.log);
getUniqueRandomNumberAsync(console.log);
getUniqueRandomNumberAsync(console.log);
// ... after one second
// => 0.3639475910458714
// => 0.3639475910458714
// => 0.3639475910458714
// => 0.3639475910458714
// After one second (after the random number is found)
// we request it again
setTimeout(() => {
getUniqueRandomNumberAsync(console.log);
// => 0.3639475910458714
}, 1000);
:question: Get Help
There are few ways to get help:
- Please post questions on Stack Overflow. You can open issues with questions, as long you add a link to your Stack Overflow question.
- For bug reports and feature requests, open issues. :bug:
- For direct and quick help, you can use Codementor. :rocket:
:memo: Documentation
CbBuffer()
Creates a new instance of CbBuffer
.
The instance will contain methods documented below and the following fields:
buffer
(Array): An array of functions to be called.waiting
(Boolean): A flag representing the state of the buffer.is_done
(Boolean): A flag representing the done state (is done or not).args
(Array): The callback function arguments.
Return
- CbBuffer The
CbBuffer
instance.
check(fn)
Use this function to append the new function and return
if needed:
if (cb.check(callback)) { return; }
Params
- Function
fn
: The callback function.
Return
- Boolean
true
if thw async function was called already.
call(fn)
Calls the provided function with the callback arguments.
Params
- Function
fn
: The function to call.
clear()
CLears the callback array.
undone()
Resets the internal data.
done()
Calls all the functions from the buffer.
:yum: How to contribute
Have an idea? Found a bug? See how to contribute.
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:dizzy: Where is this library used?
If you are using this library in one of your projects, add it in this list. :sparkles:
image-parser
bible.js
cb-bufferify