Salesforce JavaScript Developer Practice Exam

Does the JavaScript global execution context create a global object?

1. true

2. false

3. it depends

4. not applicable

The correct answer is: true

The statement that the JavaScript global execution context creates a global object is accurate. When JavaScript code is executed in either a browser or on a Node.js environment, a global execution context is formed. This context includes the creation of a global object, which serves as the outermost scope for all variables and functions defined in the JavaScript code. In a browser, the global object is typically represented by the `window` object, providing access to the browser's APIs and the web page's content. It allows variables declared outside any function and functions defined in the global scope to be properties or methods of this global object. In the case of Node.js, the global object is named `global`, providing a similar purpose to that in a browser environment but tailored to server-side JavaScript execution. This global object is important because it allows for the sharing of variables and functions across different parts of an application, making it easier to manage state and behavior without requiring excessively complex scoping or module systems. While the creation of a global object is a fundamental aspect of the JavaScript execution environment, the context in which the JavaScript code is executed (whether in a client or server environment) may alter how one interacts with that object and its properties. However, the