What’s a way to append a value to an array?

hello,
can anybody explain me how to append the value of array in javascript?
is this any function is their for that?

 

arrayName.push(newValue);

 

[SIZE=+1]We can append a value to an array using one of the two methods shown below1.push() - add elements in end of the array2.unshift() - add elements in begining of the array.For example;int limit=2;string[] arrsize = new string[limit];arrsize[0] = "java";arrsize[1] = "jsp";arrsize.push("j2ee")[/SIZE]

 

Sample code
var msgArray = new Array(3);
msgArray[0] = "Welcome to";
msgArray[1] = "forums";
msgArray[2] = "DigitalPoint";
msgArray .push("Hola");
for (var i = 0; i < msgArray.length; i++) {
alert(msgArray );
};