Question

How to find all uppercase characters in a string with Node.js

Answer 1

const str = 'JavaScript C PHP 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 PHP TS NJS
JSCPHPTSNJS
[
  'J', 'S', 'C', 'P',
  'H', 'P', 'T', 'S',
  'N', 'J', 'S'
]
  
*/

 

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