JS Hoisting

Hoisting is not a term normatively defined in the ECMAScript specification.

const n= () => {
    const b = () => console.log(c)
    const c = 4
    return b
}


n()() //4

const n= () => {
    c()
    function c() {
			console.log(b)
		}
		const b = 3
}


n()() // error - b is not defined

Hoisting - MDN Web Docs Glossary: Definitions of Web-related terms | MDN

JavaScript Hoisting refers to the process whereby the interpreter appears to move the declaration of functions, variables, classes, or imports to the top of their scope, prior to execution of the code.

https://developer.mozilla.org/en-US/docs/Glossary/Hoisting