Can indexOf("text") be made case insensitive?

[peterinwa]

I just needed a simple search routine but it can't be case sensitive. Is there a way around indexOf being case sensitive?

[Beck]

why don't you try something like (assuming that the string you are searching is permString, and the string you are searching for is permInput):

var searchString = permString.lowercase();
var searchInput = permInput.lowercase();

if (searchString.indexOf(searchInput)!=-1)
alert("found");

I don't know if the lowercase() and uppercase() functions are the exact stuff, but I know there are ways to convert. Anyone?

[peterinwa]

I couldn't believe how easy it was to make a simple search capability for my long drop down menus (hundreds of items to scroll through) but I hadn't thought ahead (usually don't which is half the fun!) about case.

Your idea worked great, though I used toLowerCase().

My problem is that when I get stuck I never know where to look in my book. That's why this forum is so helpful.

Thanks so much.

[liorean]

Otherwise, you can use regular expressions instead...


var indexString=str.search(/your text/i);

See my tutorial about regex on wsabstract (http://www.wsabstract.com/javatutors/redev.shtml) or the same tutorial on a single page on eVolt (http://www.evolt.org/article/Regular_Expressions_in_JavaScript/17/36435/index.html).

[larson311]

Could I do this:

var halfURL = ptmLinkURL.substring(ptmLinkURL.indexOf(/"/tod/"/i)+5);