Question

How to case insensitive check if array contains a string in TypeScript

Answer 1

const arr = ['php', 'cpp', 'javascript', 'typescript', 'nodejs', 'c'];
const str = 'TYPESCRIPT';
 
const index = arr.findIndex(element => {
    return element.toLowerCase() === str.toLowerCase();
});
 
console.log(index);
    
    
     
     
/*
run:
     
3
   
*/

 

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