function to remove items in array after up to the item in array you want 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: javascript remove from array by index
//Remove specific value by index
array.splice(index, 1);