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Diffstat (limited to 'node_modules/async/mapValuesLimit.js')
-rw-r--r-- | node_modules/async/mapValuesLimit.js | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/node_modules/async/mapValuesLimit.js b/node_modules/async/mapValuesLimit.js new file mode 100644 index 000000000..e3840b070 --- /dev/null +++ b/node_modules/async/mapValuesLimit.js @@ -0,0 +1,55 @@ +'use strict'; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = mapValuesLimit; + +var _eachOfLimit = require('./eachOfLimit'); + +var _eachOfLimit2 = _interopRequireDefault(_eachOfLimit); + +var _noop = require('lodash/noop'); + +var _noop2 = _interopRequireDefault(_noop); + +var _once = require('./internal/once'); + +var _once2 = _interopRequireDefault(_once); + +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 {Function} iteratee - A function to apply to each value in `obj`. + * The iteratee is passed a `callback(err, transformed)` which must be called + * once it has completed with an error (which can be `null`) and a + * transformed value. 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 an object of the + * transformed values from the `obj`. Invoked with (err, result). + */ +function mapValuesLimit(obj, limit, iteratee, callback) { + callback = (0, _once2.default)(callback || _noop2.default); + var newObj = {}; + (0, _eachOfLimit2.default)(obj, limit, function (val, key, next) { + iteratee(val, key, function (err, result) { + if (err) return next(err); + newObj[key] = result; + next(); + }); + }, function (err) { + callback(err, newObj); + }); +} +module.exports = exports['default'];
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