Is ternary operator, if-else or logical OR faster in javascript?

Question

Which method is faster or more responsive in javascript, if-else, the ternary operator or logical OR? Which is advisable to use, for what reasons?

Answer 1

I didn't think @charlie robert's test was fair

Here's my jsperf

result:

1. strict equal is the fastest
2. strict ternary is 33% slower
3. truthy falsy is 49% slower
4. ternary truthy falsy is 55% slower
5. if else and ternary are roughly the same.

normal equal and normal ternary slowest.

strict equals:

var a = true, b;

if (a === true) {
  b = true;
} else {
  b = false
}
if (a === false) {
  b = true;
} else {
  b = false;
}

ternary strict equals

var a = true, b;

b = (a === true) ? true : false;

b = (a === false) ? true : false;

simple equality

 var a = true, b;

    if (a == true) {
      b = true;
    } else {
      b = false;
    }

    if (a == false) {
      b = true;
    } else {
      b = false;
    }

simple ternary equality

 var a = true, b;
    b = (a == true) ? true : false;

    b = (a == false) ? true : false;

truthy / falsy

var a = true, b;
if (a) {
  b = true;
} else {
  b = false;
}

if (!a) {
  b = true;
} else {
  b = false;
}

ternary truthy / falsy

var a = true, b;
b = (a) ? true : false;
b = (!a) ? true : false;