why "rerurn" is used in javascript

[ashri]

Is anyone there who mentions use of "return" in javascript in detail with some practical tutorials that why "return" is used in javascript.

[Ingolme]

Return is used to make a function return a value.

function five() {  return 5;}alert(five()); // Displays "5"

[ashri]

Return is used to make a function return a value.

function five() {  return 5;}alert(five()); // Displays "5"

can you demonstrate me with more explanation i can't understand this yet.

[Synook]

A function is a structure that takes zero or more values as arguments, and returns a single value. For example, Ingolme's function five() takes no values, and returns a number, being 5. I can write another function:

function add(a, b) {	return a + b;}alert(add(3, 2)); // Displays "5"

Here, the function takes two arguments, and returns the sum of them.The return keyword simply specifies what the function should return.

[iwato]

can you demonstrate me with more explanation i can't understand this yet.

If you would like to understand how to create a function and use the alert() function then click on the highlighted text in this sentence.Roddy

[jeffman]

return is also used to terminate a function. It is often used in combination with if statements, so that a function can terminate if one condition exists, but continue to execute if another condition exists. An example

function square(num){   var squared;   if (typeof num != "number")   {	  return; // function terminates here   }   squared = Math.pow(num, 2);   return squared;}