fake-binary.js

// Given a string of digits, you should replace any digit below 5 with '0' and any digit 5 and above with '1'. Return the resulting string.

// Note: input will never be an empty string

//solution

function fakeBin(x) {
  return x
    .split("")
    .map((element) => {
      if (element >= 5) {
        return 1;
      } else {
        return 0;
      }
    })
    .join("");
}