Question

How to case insensitive check if array contains a string in Node.js

Answer 1

const arr = ['python', 'cpp', 'javascript', 'typescript', 'nodejs', 'c'];
const str = 'NODEJS';

const index = arr.findIndex(element => {
  	return element.toLowerCase() === str.toLowerCase();
});

console.log(index);
   
   
    
    
/*
run:
    
4
  
*/

 

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