remove a value from array js

1const index = array.indexOf(item);
2if (index > -1) {
3	array.splice(index, 1);
4}

1var index = array.indexOf(item);
2if (index !== -1) array.splice(index, 1);

1
2    
3    var arr = [1, 2, 3, 4, 5, 5, 6, 7, 8, 5, 9, 0];
4    
5    for( var i = 0; i < arr.length; i++){ 
6                                   
7        if ( arr[i] === 5) { 
8            arr.splice(i, 1); 
9            i--; 
10        }
11    }
12
13    //=> [1, 2, 3, 4, 6, 7, 8, 9, 0]
14    
15

1const items = ['a', 'b', 'c', 'd', 'e', 'f']
2const i = 2
3const filteredItems = items.slice(0, i).concat(items.slice(i + 1, items.length))
4// ["a", "b", "d", "e", "f"]
5