javascript - Alter array using $.grep() -

currently, use $.grep filter , remove elements array pass. believe $.grep intended used filtering only, since it's iterating on entire array, figured might alter array inside well.

do have other approaches can suggest? had thought $.map, afaik should used translating elements, , not removing them.

is separate $.each alternative?

the relevant part of code:

$.each(filter, function (k, v) {      if (v.codekeys) {          $.each(v.codekeys, function (i, codekey) {              rows = $.grep(rows, function (v2, i2) {                  if ($.isarray(v2[v.dbcolumn]) &&                      $.inarray(codekey, v2[v.dbcolumn]) === -1) {                      var index = $.inarray(codekey ,v2[v.dbcolumn]);                      if (v2[v.dbcolumn][index])                         v2[v.dbcolumn].remove(index);                      return true;                  }                 else {                     return v2[v.dbcolumn] !== codekey;                 }              });          });     }  }); 

$.map can used remove items array, make return null:

var items = [1, 2, 3, 4] $.map(items, function(i) { if (i == 2) return null; return i; })  result: [1, 3, 4] 

from the documentation:

the function can return:     * translated value, mapped resulting array     * null or undefined, remove item