1 | ;
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 |
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7 | var _createTester = require('./internal/createTester');
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8 |
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9 | var _createTester2 = _interopRequireDefault(_createTester);
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10 |
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11 | var _eachOf = require('./eachOf');
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12 |
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13 | var _eachOf2 = _interopRequireDefault(_eachOf);
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14 |
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15 | var _awaitify = require('./internal/awaitify');
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16 |
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17 | var _awaitify2 = _interopRequireDefault(_awaitify);
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18 |
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19 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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20 |
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21 | /**
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22 | * Returns the first value in `coll` that passes an async truth test. The
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23 | * `iteratee` is applied in parallel, meaning the first iteratee to return
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24 | * `true` will fire the detect `callback` with that result. That means the
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25 | * result might not be the first item in the original `coll` (in terms of order)
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26 | * that passes the test.
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27 |
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28 | * If order within the original `coll` is important, then look at
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29 | * [`detectSeries`]{@link module:Collections.detectSeries}.
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30 | *
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31 | * @name detect
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32 | * @static
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33 | * @memberOf module:Collections
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34 | * @method
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35 | * @alias find
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36 | * @category Collections
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37 | * @param {Array|Iterable|AsyncIterable|Object} coll - A collection to iterate over.
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38 | * @param {AsyncFunction} iteratee - A truth test to apply to each item in `coll`.
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39 | * The iteratee must complete with a boolean value as its result.
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40 | * Invoked with (item, callback).
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41 | * @param {Function} [callback] - A callback which is called as soon as any
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42 | * iteratee returns `true`, or after all the `iteratee` functions have finished.
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43 | * Result will be the first item in the array that passes the truth test
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44 | * (iteratee) or the value `undefined` if none passed. Invoked with
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45 | * (err, result).
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46 | * @returns A Promise, if no callback is passed
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47 | * @example
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48 | *
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49 | * async.detect(['file1','file2','file3'], function(filePath, callback) {
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50 | * fs.access(filePath, function(err) {
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51 | * callback(null, !err)
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52 | * });
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53 | * }, function(err, result) {
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54 | * // result now equals the first file in the list that exists
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55 | * });
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56 | */
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57 | function detect(coll, iteratee, callback) {
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58 | return (0, _createTester2.default)(bool => bool, (res, item) => item)(_eachOf2.default, coll, iteratee, callback);
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59 | }
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60 | exports.default = (0, _awaitify2.default)(detect, 3);
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61 | module.exports = exports['default']; |
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