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author | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
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committer | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
commit | de98e0b232509d5f40c135d540a70e415272ff85 (patch) | |
tree | a79222a5b58484ab3b80d18efcaaa7ccc4769b33 /node_modules/async/detect.js | |
parent | e0c9d480a73fa629c1e4a47d3e721f1d2d345406 (diff) |
node_modules
Diffstat (limited to 'node_modules/async/detect.js')
-rw-r--r-- | node_modules/async/detect.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/node_modules/async/detect.js b/node_modules/async/detect.js new file mode 100644 index 000000000..db4678358 --- /dev/null +++ b/node_modules/async/detect.js @@ -0,0 +1,61 @@ +'use strict'; + +Object.defineProperty(exports, "__esModule", { + value: true +}); + +var _identity = require('lodash/identity'); + +var _identity2 = _interopRequireDefault(_identity); + +var _createTester = require('./internal/createTester'); + +var _createTester2 = _interopRequireDefault(_createTester); + +var _doParallel = require('./internal/doParallel'); + +var _doParallel2 = _interopRequireDefault(_doParallel); + +var _findGetResult = require('./internal/findGetResult'); + +var _findGetResult2 = _interopRequireDefault(_findGetResult); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +/** + * Returns the first value in `coll` that passes an async truth test. The + * `iteratee` is applied in parallel, meaning the first iteratee to return + * `true` will fire the detect `callback` with that result. That means the + * result might not be the first item in the original `coll` (in terms of order) + * that passes the test. + + * If order within the original `coll` is important, then look at + * [`detectSeries`]{@link module:Collections.detectSeries}. + * + * @name detect + * @static + * @memberOf module:Collections + * @method + * @alias find + * @category Collections + * @param {Array|Iterable|Object} coll - A collection to iterate over. + * @param {AsyncFunction} iteratee - A truth test to apply to each item in `coll`. + * The iteratee must complete with a boolean value as its result. + * 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 the first item in the array that passes the truth test + * (iteratee) or the value `undefined` if none passed. Invoked with + * (err, result). + * @example + * + * async.detect(['file1','file2','file3'], function(filePath, callback) { + * fs.access(filePath, function(err) { + * callback(null, !err) + * }); + * }, function(err, result) { + * // result now equals the first file in the list that exists + * }); + */ +exports.default = (0, _doParallel2.default)((0, _createTester2.default)(_identity2.default, _findGetResult2.default)); +module.exports = exports['default'];
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