What is the function and usage of commonly used web built-in objects? An interview question that was asked before looking for a job.
1. The window object.
The window object is the global object of the browser window. It represents the browser window and can be used to access the properties and methods of the browser window, such as accessing the width and height of the browser, opening a new window, closing the window, and so on.
2. Document object.
The Document object is a global object that represents the current HTML document, and can be used to access elements in the HTML document, such as accessing elements in the document, obtaining text content in the document, changing the attributes of elements in the document, and so on.
3. History object.
The History object is a global object representing the history of the browser, and can be used to access the history of the browser, such as going back, forward, adding history, and so on.
4. Location object.
The Location object is a global object representing the current URL address, which can be used to access the URL address, such as obtaining the URL address, setting the URL address, reloading the page, and so on.
5. Navigator object.
The Navigator object is a global object representing browser information, which can be used to access browser information, such as obtaining browser name, version, plug-in information, and so on.