require-number-to-fixed-digits-argument.md

Enforce using the digits argument with Number#toFixed()

It's better to make it clear what the value of the digits argument is when calling Number#toFixed(), instead of relying on the default value of 0.

This rule is fixable.

Fail

const string = number.toFixed();

Pass

const string = foo.toFixed(0);

const string = foo.toFixed(2);

const integer = Math.floor(foo);

const integer = Math.ceil(foo);

const integer = Math.round(foo);

const integer = Math.trunc(foo);