JS: the Global Object

Purpose of Global Object

Global object holds all variable/object/function of the JavaScript language as properties.

Value of Global Object

What object is the Global Object depends on the language host.

In web browser, the Global Object is window. [see Browser Window Object]

In Deno, the Global Object is window.

In node.js, the Global Object is global. [see Node.js Tutorial]

globalThis (variable)

• JS: globalThis

Constant Literals

• JS: Infinity
• JS: NaN
• JS: undefined

Simple Functions

• JS: eval
• JS: isFinite
• JS: global isNaN
• JS: parseInt
• JS: parseFloat
• JS DOM: encodeURI
• JS DOM: encodeURIComponent
• JS DOM: escape, unescape ❌

Static Objects

• JS: JSON (namespace)
• JS: Math (namespace)
• JS: Reflect (namespace)

Primitive Wrapper

• JS: Number (class)
• JS: Boolean (class)
• JS: String (class)
• JS: BigInt (class)

Special Objects

• JS: Object (class)
• JS: Array (class)
• JS: Function (class)
• JS: RegExp (class)
• JS: Date (class)
• JS: Set (class)
• JS: Map (class)
• JS: Symbol (class)

• WeakSet
• WeakMap
• JS: Proxy
• JS: Promise Tutorial

Error Objects

• JS: Error Object

• EvalError
• RangeError
• ReferenceError
• SyntaxError
• TypeError
• URIError

Misc

• DataView
• ArrayBuffer
• Float32Array
• Float64Array
• Int8Array
• Int16Array
• Int32Array
• Uint8Array
• Uint8ClampedArray
• Uint16Array
• Uint32Array