Write a getCapitals function that accepts a string and returns an array of all capital letters that are in the string in the same order

Question

function getCapitals(string) {
  var newString = [''];
  for (var i = 0; i < string.length; i++) {
    if (string[i] === string[i].toUpperCase()) {
      newString += string[i];
    }
  }
  return newString;
}

console.log(getCapitals("Madjbaj Avveyhe"));

EXPECTED: ["M", "A"]

RESULT: ["M A"]

Use [Array.prototype.push()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/push) to add elements to an array — Phil, Feb 20 '23 at 00:53

score 0 · Answer 1 · answered Feb 20 '23 at 00:55

You can use split and filter to get the result in single line

const getCapitals = (str) => str.split('').filter(c => c.trim() && c.toUpperCase() === c);

console.log(getCapitals("Madjbaj Avveyhe"));

You can also use regex here as:

const getCapitals = (str) => str.match(/[A-Z]/g)

console.log(getCapitals("Madjbaj Avveyhe"));

Write a getCapitals function that accepts a string and returns an array of all capital letters that are in the string in the same order

1 Answers1