Clean Names

N1: Choose Descriptive Names

Names should reveal intent. If a name requires a comment, it doesn't reveal its intent.

// Bad - what is d?
const d = 86400;

// Good - obvious meaning
const SECONDS_PER_DAY = 86400;

// Bad - what does this function do?
function proc(values: number[]) {
  return values.filter((value) => value > 0);
}