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Diffstat (limited to 'node_modules/async/mapValuesLimit.js')
-rw-r--r-- | node_modules/async/mapValuesLimit.js | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/node_modules/async/mapValuesLimit.js b/node_modules/async/mapValuesLimit.js new file mode 100644 index 0000000..93066ee --- /dev/null +++ b/node_modules/async/mapValuesLimit.js @@ -0,0 +1,61 @@ +'use strict'; + +Object.defineProperty(exports, "__esModule", { + value: true +}); + +var _eachOfLimit = require('./internal/eachOfLimit.js'); + +var _eachOfLimit2 = _interopRequireDefault(_eachOfLimit); + +var _awaitify = require('./internal/awaitify.js'); + +var _awaitify2 = _interopRequireDefault(_awaitify); + +var _once = require('./internal/once.js'); + +var _once2 = _interopRequireDefault(_once); + +var _wrapAsync = require('./internal/wrapAsync.js'); + +var _wrapAsync2 = _interopRequireDefault(_wrapAsync); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +/** + * The same as [`mapValues`]{@link module:Collections.mapValues} but runs a maximum of `limit` async operations at a + * time. + * + * @name mapValuesLimit + * @static + * @memberOf module:Collections + * @method + * @see [async.mapValues]{@link module:Collections.mapValues} + * @category Collection + * @param {Object} obj - A collection to iterate over. + * @param {number} limit - The maximum number of async operations at a time. + * @param {AsyncFunction} iteratee - A function to apply to each value and key + * in `coll`. + * The iteratee should complete with the transformed value as its result. + * Invoked with (value, key, callback). + * @param {Function} [callback] - A callback which is called when all `iteratee` + * functions have finished, or an error occurs. `result` is a new object consisting + * of each key from `obj`, with each transformed value on the right-hand side. + * Invoked with (err, result). + * @returns {Promise} a promise, if no callback is passed + */ +function mapValuesLimit(obj, limit, iteratee, callback) { + callback = (0, _once2.default)(callback); + var newObj = {}; + var _iteratee = (0, _wrapAsync2.default)(iteratee); + return (0, _eachOfLimit2.default)(limit)(obj, (val, key, next) => { + _iteratee(val, key, (err, result) => { + if (err) return next(err); + newObj[key] = result; + next(err); + }); + }, err => callback(err, newObj)); +} + +exports.default = (0, _awaitify2.default)(mapValuesLimit, 4); +module.exports = exports['default'];
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