Current File : //proc/self/root/usr/lib/node_modules/pm2/node_modules/async/every.js
'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'];
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