Loop over each item in an array and call the given function on every element.
The array-each npm package provides a simple utility for iterating over arrays and executing a function for each element. It is designed to be lightweight and efficient, making it suitable for scenarios where you need to perform operations on each item in an array.
Basic Iteration
This feature allows you to iterate over each element in an array and execute a callback function. The callback receives the current value, the index, and the original array.
const each = require('array-each');
const array = [1, 2, 3, 4];
each(array, function(value, index, array) {
console.log('Value:', value, 'Index:', index);
});Early Exit
This feature allows you to exit the iteration early by returning `false` from the callback function. This can be useful for performance optimization when you find the element you are looking for.
const each = require('array-each');
const array = [1, 2, 3, 4];
each(array, function(value, index, array) {
if (value === 3) return false; // Exit early
console.log('Value:', value, 'Index:', index);
});Lodash is a modern JavaScript utility library delivering modularity, performance, and extras. It provides a `_.forEach` method that offers similar functionality to array-each but with additional features and support for objects as well as arrays.
The async package provides higher-order functions and common patterns for asynchronous code. It includes an `async.each` method that allows for asynchronous iteration over arrays, which is useful for handling I/O-bound operations.
Underscore is a JavaScript library that provides a whole mess of useful functional programming helpers without extending any built-in objects. It includes an `_.each` method that works similarly to array-each but also supports objects.
Loop over each item in an array and call the given function on every element.
Install with npm:
$ npm install --save array-each
Loop over each item in an array and call the given function on every element.
Params
array {Array}fn {Function}thisArg {Object}: (optional) pass a thisArg to be used as the context in which to call the function.returns {undefined}Example
each(['a', 'b', 'c'], function(ele) {
return ele + ele;
});
//=> ['aa', 'bb', 'cc']
each(['a', 'b', 'c'], function(ele, i) {
return i + ele;
});
//=> ['0a', '1b', '2c']
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)
To generate the readme, run the following command:
$ npm install -g verbose/verb#dev verb-generate-readme && verb
Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
$ npm install && npm test
Jon Schlinkert
Copyright © 2017, Jon Schlinkert. Released under the MIT License.
This file was generated by verb-generate-readme, v0.4.2, on February 26, 2017.
FAQs
Loop over each item in an array and call the given function on every element.
We found that array-each demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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