Question

How to find of a word in a string using regular expression case insensitive in JavaScript

Answer 1

const s = 'javascript php c c++ javascript javascript';
 
const regExp = /JAVASCRIPT/i;
 
const result = s.match(regExp);
 
console.log(result.length);
 

     
     
/*
run:
     
1
     
*/

 

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Answer 2

const s = 'javascript php c c++ javascript javascript';
 
const word = "JAVASCRIPT";
 
const regExp = new RegExp(word, 'i');
 
console.log(s.match(regExp).length);
 

     
     
/*
run:
     
1
     
*/

 

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