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Is the indexOf(String) method case sensitive? If so, is there a case insensitive version of it?
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IndexOf Method is by default case sensitive.
Both String#includes() and String#indexOf() are case sensitive. Neither function supports regular expressions. To do case insensitive search, you can use regular expressions and the String#match() function, or you can convert both the string and substring to lower case using the String#toLowerCase() function.
The indexOf() method returns the position of the first occurrence of specified character(s) in a string. Tip: Use the lastIndexOf method to return the position of the last occurrence of specified character(s) in a string.
The indexOf() methods are all case-sensitive. You can make them (roughly, in a broken way, but working for plenty of cases) case-insensitive by converting your strings to upper/lower case beforehand:
s1 = s1.toLowerCase(Locale.US); s2 = s2.toLowerCase(Locale.US); s1.indexOf(s2); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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