phpjs/functions/array/array_intersect_uassoc.js

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function array_intersect_uassoc(arr1) {
  //  discuss at: http://phpjs.org/functions/array_intersect_uassoc/
  // original by: Brett Zamir (http://brett-zamir.me)
  //   example 1: $array1 = {a: 'green', b: 'brown', c: 'blue', 0: 'red'}
  //   example 1: $array2 = {a: 'GREEN', B: 'brown', 0: 'yellow', 1: 'red'}
  //   example 1: array_intersect_uassoc($array1, $array2, function (f_string1, f_string2){var string1 = (f_string1+'').toLowerCase(); var string2 = (f_string2+'').toLowerCase(); if (string1 > string2) return 1; if (string1 == string2) return 0; return -1;});
  //   returns 1: {b: 'brown'}

  var retArr = {},
    arglm1 = arguments.length - 1,
    arglm2 = arglm1 - 1,
    cb = arguments[arglm1],
    k1 = '',
    i = 1,
    arr = {},
    k = '';

  cb = (typeof cb === 'string') ? this.window[cb] : (Object.prototype.toString.call(cb) === '[object Array]') ? this.window[
    cb[0]][cb[1]] : cb;

  arr1keys: for (k1 in arr1) {
    arrs: for (i = 1; i < arglm1; i++) {
      arr = arguments[i];
      for (k in arr) {
        if (arr[k] === arr1[k1] && cb(k, k1) === 0) {
          if (i === arglm2) {
            retArr[k1] = arr1[k1];
          }
          // If the innermost loop always leads at least once to an equal value, continue the loop until done
          continue arrs;
        }
      }
      // If it reaches here, it wasn't found in at least one array, so try next value
      continue arr1keys;
    }
  }

  return retArr;
}