capToFront.js

// Move Capital Letters to the Front

// Create a function that moves all capital letters to the front of a word.

// Examples

// capToFront("hApPy") ➞ "APhpy"

// capToFront("moveMENT") ➞ "MENTmove"

// capToFront("shOrtCAKE") ➞ "OCAKEshrt"

// Pseudocode


// Write a function with name "capToFront" that takes a string argument
// declare a variable to store CapitalLetters - "caps"
// declare a variable to store lowercase letters - "lows"
// Convert the string to array and loop through
// have an if else condition to check if the letter is UPPERCASE or not
// if UPPERCASE is concat it to "caps" else concat to "lows"
// return the "caps" and "lows" concated together

// SOLUTION 1

function capToFront(str) {
  const uppercase = [];
  const lowercase = [];
  [...str].forEach(char => {
    if (char === char.toUpperCase()) {
      uppercase.push(char);
    } else {
      lowercase.push(char);
    }
  });
  //   return uppercase.concat(lowercase).join('');
  return [...uppercase, ...lowercase].join('');
}

console.log(capToFront('hApPy'));
console.log(capToFront('moveMENT'));

// SOLUTION 2 - using string concatenation
function capToFrontSol2(str) {
  let caps = '';
  let lows = '';
  [...str].forEach(char => {
    if (char === char.toUpperCase()) {
      caps = caps + char;
    } else {
      lows = lows + char;
    }
  });

  return caps + lows;
}

console.log(capToFrontSol2('hApPy'));
console.log(capToFrontSol2('moveMENT'));