site_opytex/theme/node_modules/array-each/index.js

47 lines
962 B
JavaScript

/*!
* array-each <https://github.com/jonschlinkert/array-each>
*
* Copyright (c) 2015, 2017, Jon Schlinkert.
* Released under the MIT License.
*/
'use strict';
/**
* Loop over each item in an array and call the given function on every element.
*
* ```js
* 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']
* ```
*
* @name each
* @alias forEach
* @param {Array} `array`
* @param {Function} `fn`
* @param {Object} `thisArg` (optional) pass a `thisArg` to be used as the context in which to call the function.
* @return {undefined}
* @api public
*/
module.exports = function each(arr, cb, thisArg) {
if (arr == null) return;
var len = arr.length;
var idx = -1;
while (++idx < len) {
var ele = arr[idx];
if (cb.call(thisArg, ele, idx, arr) === false) {
break;
}
}
};