Nodejs Array Except except(arr, comparer)

Method Source Code

Array.prototype.except = function (arr, comparer) {
    if (!(arr instanceof Array)) arr = [arr];
    comparer = comparer || EqualityComparer;
    var l = this.length;
    var res = [];
    for (var i = 0; i < l; i++) {
        var k = arr.length;
        var t = false;
        while (k-- > 0) {
            if (comparer(this[i], arr[k]) === true) {
                t = true;//ww  w .j  ava  2  s. c om
                break;
            }
        }
        if (!t) res.push(this[i]);
    }
    return res;
};

Related

1. except(ary)

   Array.prototype.except = function (ary) {
       var result = new Array();
       this.forEach(x => {
           if (!ary.contains(x))
               result.push(x);
       });
       return result;
   };
   

2. except(cleanIndex)

   Array.prototype.except = function (cleanIndex) {
     return this
       .filter((value, index) =>
         (typeof cleanIndex === 'object')
           ? cleanIndex.indexOf(index) === -1
           : index !== cleanIndex);
   console.log(
     ['a', 'b', 'c', 'd', 'e'].except([0, 1]), 
   ...
   

3. except(filter)

   Array.prototype.except = function(filter) {
     var elements = this.filter(function(element) {
       return element != filter
     });
     return elements
   

4. except(keys)

   Array.prototype.except = function(keys)
     let arr = this.map((i) => i);
     if(keys.length) {
       keys.sort((a,b) => a - b);
       keys.forEach((k, i) => { arr.splice(k - i, 1);});
     } else {
       arr.splice(keys, 1);
     return arr;