JS: Function (class)

What is the Keyword “Function”

Function is the value of the property key "Function" of the Global Object .

console.assert(globalThis["Function"] === Function);

Type

Type of Function is a function.

console.assert(typeof Function === "function");

Parent

Parent of Function is Function.prototype.

console.assert(Reflect.getPrototypeOf(Function) === Function.prototype);

Purpose

Purpose of Function is:

• To create a function from strings. (Useful when you need to generate function definition at run time).
• Holds the property key "prototype". Its value is the parent of all instance of function.

Function Constructor

• JS: Function Constructor

Properties

• JS: Function.prototype
• JS: Function Length Property