JavaScript indexOf to ignore Case

Question

I am trying to find if an image has in its source name noPic which can be in upper or lower case.

var noPic = largeSrc.indexOf("nopic"); 

Should I write :

var noPic = largeSrc.toLowerCase().indexOf("nopic"); 

But this solution doesn't work...

Answer 1

You can use regex with a case-insensitive modifier - admittedly not necessarily as fast as indexOf.

var noPic = largeSrc.search(/nopic/i); 

Answer 2

No, there is no case-insensitive way to call that function. Perhaps the reason your second example doesn't work is because you are missing a call to the text() function.

Try this:

var search = "nopic"; var noPic = largeSrc.text().toLowerCase().indexOf(search.toLowerCase());