const { a, b }
= obj just reference it as obj.a and obj.b. this preserves contexttry/catch where possibleany typewe don't like let statements, especially combined with if/else statements. prefer const
This is bad:
Good:
const foo = condition ? 1 : 2
Bad:
let foo
if (condition) foo = 1
else foo = 2
Prefer early returns or even using iife to avoid else statements
Good:
function foo() {
if (condition) return 1
return 2
}
Bad:
function foo() {
if (condition) return 1
else return 2
}
Try your best to find a single word name for your variables, functions, etc. Only use multiple words if you cannot.
Good:
const foo = 1
const bar = 2
const baz = 3
Bad:
const fooBar = 1
const barBaz = 2
const bazFoo = 3