indexOf is the match case sensitive? (javascript)?

Question

I'm using the string method indexOf in Javascript to as a if statement test ...
if(myvar.indexOf("DSI") != -1 {}

Will this only match on DSI or will also match on Dsi or dsi or dSI etc, and if it is the later (i.e. case sensitive) is there a javascript function I can use to normalize case. example

if(myvar.indexOf(themagicfunction("DSI")) != -1 {}

Answer 1

Yes, indexOf is case-sensitive. I would recommend:

myVar.toLowerCase() .indexOf( findVar.toLowerCase() );

Or the opposite, toUpperCase(). Just make sure you use one or the other consistently.

Answer 2

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