How can I exit from a javascript function? [duplicate]

Question

I have the following:

function refreshGrid(entity) {     var store = window.localStorage;     var partitionKey;     ...     ... 

I would like to exit from this function if an "if" condition is met. How can I exit? Can I just say break, exit or return?

Answer 1

if ( condition ) {     return; } 

The return exits the function returning undefined.

The exit statement doesn't exist in javascript.

The break statement allows you to exit a loop, not a function. For example:

var i = 0; while ( i < 10 ) {     i++;     if ( i === 5 ) {         break;     } } 

This also works with the for and the switch loops.

Answer 2

Use return statement anywhere you want to exit from function.

if(somecondtion)    return;  if(somecondtion)    return false;