1var colors = ["red","blue","car","green"];
2var carIndex = colors.indexOf("car");//get  "car" index
3//remove car from the colors array
4colors.splice(carIndex, 1); // colors = ["red","blue","green"]

1let array = [1, 2, 6, 4, 5, 6, 7];
2
3array = array.filter(element => element !== 6); // [1,2,4,5,7]

1var array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
2var filtered = array.filter(function(value, index, arr){
3    return value > 5;
4});
5//filtered => [6, 7, 8, 9]
6//array => [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]

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