No Eval

Disallows the use of eval.

eval is a potentially dangerous function which can open your code to a number of security vulnerabilities. In addition to being slow, eval is also often unnecessary with better solutions available.

Invalid:

const obj = { x: "foo" };
const key = "x",
const value = eval("obj." + key);

Valid:

const obj = { x: "foo" };
const value = obj[x];