removing items from array javascript code example

Example 1: remove a particular element from array

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

Example 2: remove item from array

$input = array("item 2", "item 4");
$key = array_search('item 2', $input);
if($key!==false){
    unset($input[$key]);
}
var_dump($input);