IE: indexOf results in "object doesn't support this property or method"

Question

I have the following if statement:

if (buyArray.indexOf(dealWith,0) != -1){

Which is breaking in ie (ie 8 on XP) with "object doesn't support this property or method".

Anyone have a work around for this?

Conger

Answer 1

yeah, IE<9 doesn't support indexOf. You can implement a shim like the one showed here: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf

Or if you already using jQuery you can use inArray. Also underscore has an implementation for it.

Undervalue

jQuery.inArray is my saviour. Thanks for the heads up. – Conger

+1 for the right answer, plus providing work-arounds. The lesson here is to know that old IE versions have a lot of missing functionality, and to be prepared to work around them. – Matthews

Answer 2

Simply changed to the use jQuery.inArray. Thanks to ZER0 for the heads up

if ($.inArray(dealWith, buyArray) != -1) {

Conger

You should add the jQuery tag to your question IMO. – Achromic

So he gave you the answer then you decided to post it and accept your own as the answer? – Haemato

@Haemato He pointed me to where I could find the solution and I answered with the actual solution which he helped me to find. So if you are going to be pedantic about it, the answer to your question is yes. – Conger

TBF, you should have given the answer to ZER0 – Kitty

To fold to popular opinion. I have updated the accepted answer to @Undervalue – Conger