22 lines
500 B
JavaScript
22 lines
500 B
JavaScript
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module.exports = function (arr, iterator, callback) {
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callback = callback || function () {};
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if (!Array.isArray(arr) || !arr.length) {
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return callback();
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}
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var completed = 0;
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var iterate = function () {
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iterator(arr[completed], function (err) {
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if (err) {
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callback(err);
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callback = function () {};
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}
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else {
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++completed;
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if (completed >= arr.length) { callback(); }
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else { iterate(); }
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}
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});
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};
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iterate();
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};
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