push object into array array excluding existing objects in javascript code example

Example 1: how to append objects to javascript lists ?

var studentList = ['Jason', 'Samantha', 'Alice', 'Joseph'];

//Add a new student to the end of the student list
studentList.push('Jacob');
//list is updated to ['Jason', 'Samantha', 'Alice', 'Joseph', 'Jacob'];

Example 2: javascript array push object

var myArray = [];
myArray.push("Example");
myArray.push("text");