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<div class="content" data-ice="content"><h1 data-ice="title">lib/mapValuesLimit.js</h1>
<pre class="source-code line-number raw-source-code"><code class="prettyprint linenums" data-ice="content">import eachOfLimit from './eachOfLimit';
/**
* The same as `mapValues` but runs a maximum of `limit` async operations at a
* time.
*
* @name mapValuesLimit
* @static
* @memberOf async
* @see async.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).
*/
export default function mapValuesLimit(obj, limit, iteratee, callback) {
var newObj = {};
eachOfLimit(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);
});
}
</code></pre>
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