Run results for: fake-binary

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0

Browser: Firefox 52

Operating system: Linux

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
Conversion	790219.1 Ops/sec
Replacement	207048.9 Ops/sec
Loop	7704184.5 Ops/sec

Script Preparation code:

function fakeBin(strNums) { 
  return strNums.split("")
                .map(num => num = num < 5 ? 0 : 1)
                .join("")
}

function fakeBin2(x) {
  return x.replace(/\d/g, n => "0000011111"[n])
}

function fakeBin3(x) {
  var result = "";
  
  for (var i = 0; i < x.length; i++) {
    if (x.charCodeAt(i) < 53) {
      result += "0";
    } else {
      result += "1";
    }
  }
  
  return result;
}

Tests:

Conversion
fakeBin("123456789")
Replacement
fakeBin2("123456789")
Loop
fakeBin3("123456789")

Run results for: fake-binary

Tests the efficiency between using .replace() and .split().map().join() to edit single character values in a string that only contains numbers.

Conversion

Replacement

Loop