KaveriTech Technical Blog » Javascript

Prototype: Find elements by class name – $$ method

Satish Natarajan — Sat, 16 Jan 2010 18:24:03 +0000

Suppose you want to hide all the elements with the class name “foo” here is how you can do it using the $$ operator

$$(’.foo’).each(Element.hide); — Notice the “(dot)foo”

IE – checkbox onchange event

satya — Wed, 06 Jan 2010 05:50:56 +0000

Onchange-event and IE are no friends. Well, it took time for me to find this out.

Yes, IE does not support onchange event.

But NS and Mozilla do.

Solution: Use the onclick event to accomplish the same. This way, all the browsers will be

IE7: JavaScript Error: Object doesn’t support this property or Method

Satish Natarajan — Tue, 01 Sep 2009 16:05:33 +0000

I found this this morning..

Object doesn’t support this property or Method. This turned out to be that in IE7 all javascript variables need to declared before use. So if you have say my_var1 you would want to put “var my_var1;” at the beginning of the script before assigning any value to it.

Oh I like new browsers (more fault tolerant) however lot of folks use IE7 at this time.