package.cjs.every.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');

// Determine whether all of the elements pass a truth test.
function every(obj, predicate, context) {
  predicate = _cb(predicate, context);
  var _keys = !_isArrayLike(obj) && keys(obj),
      length = (_keys || obj).length;
  for (var index = 0; index < length; index++) {
    var currentKey = _keys ? _keys[index] : index;
    if (!predicate(obj[currentKey], currentKey, obj)) return false;
  }
  return true;
}

module.exports = every;