js array delete specific element

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"]

1var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
2var removed = arr.splice(2,2);
3/*
4removed === [3, 4]
5arr === [1, 2, 5, 6, 7, 8, 9, 0]
6*/

1array.splice(array.indexOf(item), 1);

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]

1var ar = [1, 2, 3, 4, 5, 6];
2ar.pop(); // returns 6
3console.log( ar ); // [1, 2, 3, 4, 5]

1var ar = [1, 2, 3, 4, 5, 6];
2ar.length = 4; // set length to remove elements
3console.log( ar ); //  [1, 2, 3, 4]