You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
2.3 KiB
71 lines
2.3 KiB
3 years ago
|
'use strict';
|
||
|
|
|
||
|
|
Object.defineProperty(exports, "__esModule", {
|
||
|
|
value: true
|
||
|
|
});
|
||
|
|
|
||
|
|
exports.default = function (coll, limit, iteratee, callback) {
|
||
|
|
callback = callback || _noop2.default;
|
||
|
|
var _iteratee = (0, _wrapAsync2.default)(iteratee);
|
||
|
|
(0, _mapLimit2.default)(coll, limit, function (val, callback) {
|
||
|
|
_iteratee(val, function (err, key) {
|
||
|
|
if (err) return callback(err);
|
||
|
|
return callback(null, { key: key, val: val });
|
||
|
|
});
|
||
|
|
}, function (err, mapResults) {
|
||
|
|
var result = {};
|
||
|
|
// from MDN, handle object having an `hasOwnProperty` prop
|
||
|
|
var hasOwnProperty = Object.prototype.hasOwnProperty;
|
||
|
|
|
||
|
|
for (var i = 0; i < mapResults.length; i++) {
|
||
|
|
if (mapResults[i]) {
|
||
|
|
var key = mapResults[i].key;
|
||
|
|
var val = mapResults[i].val;
|
||
|
|
|
||
|
|
if (hasOwnProperty.call(result, key)) {
|
||
|
|
result[key].push(val);
|
||
|
|
} else {
|
||
|
|
result[key] = [val];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return callback(err, result);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
var _noop = require('lodash/noop');
|
||
|
|
|
||
|
|
var _noop2 = _interopRequireDefault(_noop);
|
||
|
|
|
||
|
|
var _mapLimit = require('./mapLimit');
|
||
|
|
|
||
|
|
var _mapLimit2 = _interopRequireDefault(_mapLimit);
|
||
|
|
|
||
|
|
var _wrapAsync = require('./internal/wrapAsync');
|
||
|
|
|
||
|
|
var _wrapAsync2 = _interopRequireDefault(_wrapAsync);
|
||
|
|
|
||
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
||
|
|
|
||
|
|
;
|
||
|
|
/**
|
||
|
|
* The same as [`groupBy`]{@link module:Collections.groupBy} but runs a maximum of `limit` async operations at a time.
|
||
|
|
*
|
||
|
|
* @name groupByLimit
|
||
|
|
* @static
|
||
|
|
* @memberOf module:Collections
|
||
|
|
* @method
|
||
|
|
* @see [async.groupBy]{@link module:Collections.groupBy}
|
||
|
|
* @category Collection
|
||
|
|
* @param {Array|Iterable|Object} coll - A collection to iterate over.
|
||
|
|
* @param {number} limit - The maximum number of async operations at a time.
|
||
|
|
* @param {AsyncFunction} iteratee - An async function to apply to each item in
|
||
|
|
* `coll`.
|
||
|
|
* The iteratee should complete with a `key` to group the value under.
|
||
|
|
* Invoked with (value, callback).
|
||
|
|
* @param {Function} [callback] - A callback which is called when all `iteratee`
|
||
|
|
* functions have finished, or an error occurs. Result is an `Object` whoses
|
||
|
|
* properties are arrays of values which returned the corresponding key.
|
||
|
|
*/
|
||
|
|
module.exports = exports['default'];
|