some.js
1 'use strict'; 2 3 Object.defineProperty(exports, "__esModule", { 4 value: true 5 }); 6 7 var _createTester = require('./internal/createTester'); 8 9 var _createTester2 = _interopRequireDefault(_createTester); 10 11 var _eachOf = require('./eachOf'); 12 13 var _eachOf2 = _interopRequireDefault(_eachOf); 14 15 var _awaitify = require('./internal/awaitify'); 16 17 var _awaitify2 = _interopRequireDefault(_awaitify); 18 19 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } 20 21 /** 22 * Returns `true` if at least one element in the `coll` satisfies an async test. 23 * If any iteratee call returns `true`, the main `callback` is immediately 24 * called. 25 * 26 * @name some 27 * @static 28 * @memberOf module:Collections 29 * @method 30 * @alias any 31 * @category Collection 32 * @param {Array|Iterable|AsyncIterable|Object} coll - A collection to iterate over. 33 * @param {AsyncFunction} iteratee - An async truth test to apply to each item 34 * in the collections in parallel. 35 * The iteratee should complete with a boolean `result` value. 36 * Invoked with (item, callback). 37 * @param {Function} [callback] - A callback which is called as soon as any 38 * iteratee returns `true`, or after all the iteratee functions have finished. 39 * Result will be either `true` or `false` depending on the values of the async 40 * tests. Invoked with (err, result). 41 * @returns {Promise} a promise, if no callback provided 42 * @example 43 * 44 * async.some(['file1','file2','file3'], function(filePath, callback) { 45 * fs.access(filePath, function(err) { 46 * callback(null, !err) 47 * }); 48 * }, function(err, result) { 49 * // if result is true then at least one of the files exists 50 * }); 51 */ 52 function some(coll, iteratee, callback) { 53 return (0, _createTester2.default)(Boolean, res => res)(_eachOf2.default, coll, iteratee, callback); 54 } 55 exports.default = (0, _awaitify2.default)(some, 3); 56 module.exports = exports['default'];