Question

How to find all lowercase characters in a string with JavaScript

Answer 1

const str = 'JavaScript 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:
  
"avacript  ypecript ode"
"avacriptypecriptode"
["a", "v", "a", "c", "r", "i", "p", "t", "y", "p", "e", "c", "r", "i", "p", "t", "o", "d", "e"]
  
*/

 

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