'use strict'; Object.defineProperty(exports, "__esModule", { value: true }); var _createTester = require('./internal/createTester.js'); var _createTester2 = _interopRequireDefault(_createTester); var _eachOf = require('./eachOf.js'); var _eachOf2 = _interopRequireDefault(_eachOf); var _awaitify = require('./internal/awaitify.js'); var _awaitify2 = _interopRequireDefault(_awaitify); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } /** * Returns `true` if at least one element in the `coll` satisfies an async test. * If any iteratee call returns `true`, the main `callback` is immediately * called. * * @name some * @static * @memberOf module:Collections * @method * @alias any * @category Collection * @param {Array|Iterable|AsyncIterable|Object} coll - A collection to iterate over. * @param {AsyncFunction} iteratee - An async truth test to apply to each item * in the collections in parallel. * The iteratee should complete with a boolean `result` value. * Invoked with (item, callback). * @param {Function} [callback] - A callback which is called as soon as any * iteratee returns `true`, or after all the iteratee functions have finished. * Result will be either `true` or `false` depending on the values of the async * tests. Invoked with (err, result). * @returns {Promise} a promise, if no callback provided * @example * * // dir1 is a directory that contains file1.txt, file2.txt * // dir2 is a directory that contains file3.txt, file4.txt * // dir3 is a directory that contains file5.txt * // dir4 does not exist * * // asynchronous function that checks if a file exists * function fileExists(file, callback) { * fs.access(file, fs.constants.F_OK, (err) => { * callback(null, !err); * }); * } * * // Using callbacks * async.some(['dir1/missing.txt','dir2/missing.txt','dir3/file5.txt'], fileExists, * function(err, result) { * console.log(result); * // true * // result is true since some file in the list exists * } *); * * async.some(['dir1/missing.txt','dir2/missing.txt','dir4/missing.txt'], fileExists, * function(err, result) { * console.log(result); * // false * // result is false since none of the files exists * } *); * * // Using Promises * async.some(['dir1/missing.txt','dir2/missing.txt','dir3/file5.txt'], fileExists) * .then( result => { * console.log(result); * // true * // result is true since some file in the list exists * }).catch( err => { * console.log(err); * }); * * async.some(['dir1/missing.txt','dir2/missing.txt','dir4/missing.txt'], fileExists) * .then( result => { * console.log(result); * // false * // result is false since none of the files exists * }).catch( err => { * console.log(err); * }); * * // Using async/await * async () => { * try { * let result = await async.some(['dir1/missing.txt','dir2/missing.txt','dir3/file5.txt'], fileExists); * console.log(result); * // true * // result is true since some file in the list exists * } * catch (err) { * console.log(err); * } * } * * async () => { * try { * let result = await async.some(['dir1/missing.txt','dir2/missing.txt','dir4/missing.txt'], fileExists); * console.log(result); * // false * // result is false since none of the files exists * } * catch (err) { * console.log(err); * } * } * */ function some(coll, iteratee, callback) { return (0, _createTester2.default)(Boolean, res => res)(_eachOf2.default, coll, iteratee, callback); } exports.default = (0, _awaitify2.default)(some, 3); module.exports = exports.default;