package.cjs.map.js Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of underscore Show documentation

JavaScript's functional programming helper library.

The newest version!

var _cb = require('./_cb.js');
var _isArrayLike = require('./_isArrayLike.js');
var keys = require('./keys.js');

// Return the results of applying the iteratee to each element.
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;
}

module.exports = map;