difference between window.onload=function_name and window.onload=function_name()

Question

When I used window.onload=function_name() where function_name is a java script function, the function did not get executed. But it works fine when I use window.onload=function_name.

kol · Accepted Answer · 2013-08-29 11:13:22Z

3

window.onload=function_name() calls the function function_name and sets the onload handler to its return value.

window.onload=function_name sets the handler to the function itself, so function_name will be called when the onload event occurs.

answered Aug 29, 2013 at 11:13

kol

28.9k13 gold badges91 silver badges126 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

user1646111 · Accepted Answer · 2013-08-29 11:13:48Z

1

window.onload=function_name;

This will be executed as expected when windows loading finished, while this one:

window.onload=function_name();

Will be executed when browser reaches that point and the value for the function will be returned to the window.load after page loaded.

answered Aug 29, 2013 at 11:13

user1646111

Collectives™ on Stack Overflow

difference between window.onload=function_name and window.onload=function_name()

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related