Global object
The global object is the top-level JavaScript object that provides globally accessible properties, functions, and bindings within an execution environment.
Secrets of the JavaScript Ninja, Second Edition
The object that serves as the default top-level namespace and container for globally accessible bindings in a JavaScript environment.
- How it is used
- Provides browser JavaScript with access to global bindings and browser APIs for interacting with the page.
- How deep it goes
- Explains how `window` exposes globals and how `document` represents a modifiable DOM, but defers comprehensive browser API coverage.
- Examples
- Uses `document.getElementById("first")` to select an element for later modification.
- What you can do after
- Apply browser APIs through `window` and `document` to access and modify page elements.
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Learn Go with Pocket-Sized Projects
Global is a js package function that returns the global JavaScript object.
- How it is used
- Exposes Go functions to JavaScript code running in a WebAssembly page.
- How deep it goes
- Explains global registration, browser invocation, and namespace scoping, but does not detail the global object’s JavaScript internals.
- Examples
- Uses a multiplication exercise, a generate button, and the multiplyApp namespace to demonstrate global and scoped calls.
- What you can do after
- Apply it via js.Global and js.FuncOf to register callable Go functions and choose global or namespaced exposure.
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Related concepts
- windowincludes · The browser window object is the global object for a browsing context, exposing its document, JavaScript environment, and associated browser APIs.
- thisused by · In JavaScript, the this value is determined by a function’s call context or, for an arrow function, inherited lexically.
- namespaceconfigures · A namespace is a naming context or identifier space in which names are defined and resolved, distinguishing them from names in other contexts.
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