7fife-backend/node_modules/underscore/modules/map.js

17 lines
561 B
JavaScript

import cb from './_cb.js';
import isArrayLike from './_isArrayLike.js';
import keys from './keys.js';
// Return the results of applying the iteratee to each element.
export default function map(obj, iteratee, context) {
iteratee = cb(iteratee, context);
var _keys = !isArrayLike(obj) && keys(obj),
length = (_keys || obj).length,
results = Array(length);
for (var index = 0; index < length; index++) {
var currentKey = _keys ? _keys[index] : index;
results[index] = iteratee(obj[currentKey], currentKey, obj);
}
return results;
}