123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119 |
- '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 every element in `coll` satisfies an async test. If any
- * iteratee call returns `false`, the main `callback` is immediately called.
- *
- * @name every
- * @static
- * @memberOf module:Collections
- * @method
- * @alias all
- * @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 collection in parallel.
- * The iteratee must complete with a boolean result value.
- * Invoked with (item, callback).
- * @param {Function} [callback] - A callback which is called 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
- *
- * const fileList = ['dir1/file1.txt','dir2/file3.txt','dir3/file5.txt'];
- * const withMissingFileList = ['file1.txt','file2.txt','file4.txt'];
- *
- * // 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.every(fileList, fileExists, function(err, result) {
- * console.log(result);
- * // true
- * // result is true since every file exists
- * });
- *
- * async.every(withMissingFileList, fileExists, function(err, result) {
- * console.log(result);
- * // false
- * // result is false since NOT every file exists
- * });
- *
- * // Using Promises
- * async.every(fileList, fileExists)
- * .then( result => {
- * console.log(result);
- * // true
- * // result is true since every file exists
- * }).catch( err => {
- * console.log(err);
- * });
- *
- * async.every(withMissingFileList, fileExists)
- * .then( result => {
- * console.log(result);
- * // false
- * // result is false since NOT every file exists
- * }).catch( err => {
- * console.log(err);
- * });
- *
- * // Using async/await
- * async () => {
- * try {
- * let result = await async.every(fileList, fileExists);
- * console.log(result);
- * // true
- * // result is true since every file exists
- * }
- * catch (err) {
- * console.log(err);
- * }
- * }
- *
- * async () => {
- * try {
- * let result = await async.every(withMissingFileList, fileExists);
- * console.log(result);
- * // false
- * // result is false since NOT every file exists
- * }
- * catch (err) {
- * console.log(err);
- * }
- * }
- *
- */
- function every(coll, iteratee, callback) {
- return (0, _createTester2.default)(bool => !bool, res => !res)(_eachOf2.default, coll, iteratee, callback);
- }
- exports.default = (0, _awaitify2.default)(every, 3);
- module.exports = exports['default'];
|