JavaScript Create Array
You can create an array in JavaScript as given below.
var students = [“John”, “Ann”, “Kevin”];
Here, you are initializing your array as and when it is created with values “John”, “Ann” and “Kevin”.The index of “John”, “Ann” and “Kevin” is 0, 1 and 2 respectively. If you want to add more elements to the students array, you can do it like this:
students[3] = “Emma”; students[4] = “Rose”;
You can also create an array using Array constructor like this:
var students = new Array(“John”, “Ann”, “Kevin”);
OR
var students = new Array();
students[0] = “John”;
students[1] = “Ann”;
students[2] = “Kevin”;
JavaScript Array Methods
The Array object has many properties and methods which help developers to handle arrays easily and efficiently. You can get the value of a property by specifying arrayname.property and the output of a method by specifying arrayname.method().
length property –> If you want to know the number of elements in an array, you can use the length property. prototype property –> If you want to add new properties and methods, you can use the prototype property. reverse method –> You can reverse the order of items in an array using a reverse method. sort method –> You can sort the items in an array using sort method. pop method –> You can remove the last item of an array using a pop method. shift method –> You can remove the first item of an array using shift method. push method –> You can add a value as the last item of the array.
Try this yourself:
