View: array_diff_uassoc

Function:
Description: Returns the entries of arr1 that have values which are not present in any of the others arguments but do additional checks whether the keys are equal. Elements are compared by user supplied function.
Code
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
function array_diff_uassoc (arr1) {
    // http://jsphp.co/jsphp/fn/view/array_diff_uassoc
    // +   original by: Brett Zamir (http://brett-zamir.me)
    // *     example 1: $array1 = {a: 'green', b: 'brown', c: 'blue', 0: 'red'}
    // *     example 1: $array2 = {a: 'GREEN', B: 'brown', 0: 'yellow', 1: 'red'}
    // *     example 1: array_diff_uassoc($array1, $array2, function (key1, key2){ return (key1 == key2 ? 0 : (key1 > key2 ? 1 : -1)); });
    // *     returns 1: {b: 'brown', c: 'blue', 0: 'red'}
    var retArr = {},
        arglm1 = arguments.length - 1,
        cb = arguments[arglm1],
        arr = {},
        i = 1,
        k1 = '',
        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) {
        for (i = 1; i < arglm1; i++) {
            arr = arguments[i];
            for (k in arr) {
                if (arr[k] === arr1[k1] && cb(k, k1) === 0) {
                    // If it reaches here, it was found in at least one array, so try next value
                    continue arr1keys;
                }
            }
            retArr[k1] = arr1[k1];
        }
    }

    return retArr;
}
Comment on array_diff_uassoc version 9
Tests
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
function array_diff_uassoc_tests() {

  // API reference: http://docs.jquery.com/QUnit
  module( "array_diff_uassoc" );

  test( "array_diff_uassoc", function() {

    var a1 = { "a": "green", "b": "brown", "c": "blue", 0: "red" };
    var a2 = { "a": "GREEN", "B": "brown", 0: "yellow", 1: "red" );

    var diff = array_diff_uassoc( a1, a2, function( k1, k2 ) {
      return ( k1 == k2 ? 0 : ( k1 > k2 ? 1 : -1 ) );
    } );

    deepEqual( diff, { "b": "brown", "c": "blue", 0: "red" } );

  } );

}
Comment on array_diff_uassoc version 45 tests
Benchmark
[top]

Comments

There are no comments yet, be the first!

Please Login or Register to post comments.