append array js

var colors= ["red","blue"];
	colors.push("yellow"); //["red","blue","yellow"]var colors=["red","white"];
colors.push("blue");//append 'blue' to colorsvar colors= ["red","blue"];
	colors.push("yellow"); var array = [];
var element = "anything you want in the array";
array.push(element); // array = [ "anything you want in the array" ]var fruits = [ "Orange", "Apple", "Mango"];

fruits.push("Banana"); var select =[2,5,8];
var filerdata=[];
for (var i = 0; i < select.length; i++) {
  filerdata.push(this.state.data.find((record) => record.id == select[i]));
}
//I have a data which is object,
//find method return me the filter data which are objects
//now with the push method I can make array of objects