Question

How to case insensitive search for a word in string with JavaScript

Answer 1

const s = 'javascript php c c++ javascript javascript';
 
const word = "JAVASCRIPT";
 
if (s.toUpperCase().indexOf(word) !== -1) { 
	console.log("found");
} else {
	console.log("not found");
}
 

     
     
/*
run:
     
"found"
     
*/

 

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Answer 2

const s = 'javascript php c c++ javascript javascript';
 
if (/JAVASCRIPT/i.test(s)) { 
	console.log("found");
} else {
	console.log("not found");
}
 

     
     
/*
run:
     
"found"
     
*/

 

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