Question

How to count the occurrences of a word in string using regular expression case insensitive in JavaScript

Answer 1

const s = 'javascript php c c++ javascript javascript';
  
const regExp = /JAVASCRIPT/gi;
  
const result = s.match(regExp);
  
console.log(result.length);
  
 
      
      
/*
run:
      
3
      
*/

 

70+ SQL courses for beginners and professionals

Answer 2

const s = 'javascript php c c++ javascript javascript';
  
const word = "JAVASCRIPT";
  
const regExp = new RegExp(word, 'gi');
  
console.log(s.match(regExp).length);
  
  
 
      
      
/*
run:
      
3
      
*/

 

70+ SQL courses for beginners and professionals