Question

How to find all uppercase characters in a string with TypeScript

Answer 1

const str = 'JavaScript C C++ TypeScript NodeJS';

let uppercase = str.replace(/[a-z]/g, '');
console.log(uppercase); 

uppercase = str.replace(/[^A-Z]/g, '');
console.log(uppercase); 

uppercase = str.match(/[A-Z]/g);
console.log(uppercase); 

  
  
  
  
/*
run:
  
"JS C C++ TS NJS" 
"JSCCTSNJS" 
["J", "S", "C", "C", "T", "S", "N", "J", "S"] 
  
*/

 

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