What is the JavaScript convention for no operation?

Question

What is the JavaScript convention for no operation? Like a Python pass command.

• One option is simply an empty function: function() {}

Answer 1

I use:

 (0); // nop

To test execution time of this run as:

console.time("mark");
(0); // nop
console.timeEnd("mark");

result: mark: 0.000ms

Using Boolean( 10 > 9) can be reduced it to simply ( 10 > 9) which returns true. Coming up with the idea to use a single operand I fully expected (0); would return false, but it simply returns the argument back as can be reviewed by performing this test at the console.

> var a = (0);
< undefined
> a
< 0