How to filter an array from all elements of another array
I would do as follows;
var arr1 = [1,2,3,4], arr2 = [2,4], res = arr1.filter(item => !arr2.includes(item));console.log(res);
You can use the this parameter of the filter() function to avoid to store your filter array in a global variable.
var filtered = [1, 2, 3, 4].filter( function(e) { return this.indexOf(e) < 0; }, [2, 4]);console.log(filtered);
var array = [1,2,3,4];var anotherOne = [2,4];var filteredArray = array.filter(myCallBack);function myCallBack(el){ return anotherOne.indexOf(el) < 0;}In the callback, you check if each value of array is in anotherOne
https://jsfiddle.net/0tsyc1sx/
If you are using lodash.js, use _.difference
filteredArray = _.difference(array, anotherOne);If you have an array of objects :
var array = [{id :1, name :"test1"},{id :2, name :"test2"},{id :3, name :"test3"},{id :4, name :"test4"}];var anotherOne = [{id :2, name :"test2"}, {id :4, name :"test4"}];var filteredArray = array.filter(function(array_el){ return anotherOne.filter(function(anotherOne_el){ return anotherOne_el.id == array_el.id; }).length == 0});