I'm curious about the distinction between document and window in jQuery. These two are commonly utilized, but I haven't quite grasped their differences.
I'm curious about the distinction between document and window in jQuery. These two are commonly utilized, but I haven't quite grasped their differences.
Wow, that question is actually quite complex, much more than you might think! :)
To put it simply, the Brief Explanation is...
The window object serves as the container for the displayed document object. When you mention document in your code, you're essentially referring to window.document (all properties and methods of window are global and can be accessed without explicitly stating window at the start... for example, document = window.document and alert() = window.alert()).
The document object represents the currently loaded Document Object Model (DOM) document. For instance, when you visit , the document object would encompass all HTML, JS, CSS, etc. that construct the StackOverflow homepage. Even if you switch between different pages or documents, you remain within the same window (with variations in certain window properties).
If you want detailed information about these two objects, including standard properties and methods, you can refer to the following resources:
window object - https://developer.mozilla.org/en-US/docs/Web/API/Windowdocument object - https://developer.mozilla.org/en-US/docs/Web/API/documentA final note: While not a perfect analogy, imagine the window as the browser window or tab where you view web content. You may navigate through multiple documents while browsing, but as long as you stay on the same tab, you are always within the same window.
This article discusses the advantages of utilizing both
In summary:
window - allows you to handle user interactions with the window (opening, closing, etc.)
document - represents the content within the window and lets you manage user interactions with that content (such as watching for events like clicks, changes, etc)
It's important to remember that they are distinct objects serving different purposes.
When a browser loads, the window is the first thing that appears. Inside this window object are various properties such as length, innerWidth, innerHeight, and more. This includes information about whether the window has been closed, its parents, and so on.
But what about the document object?
The document object refers to the actual HTML, ASPX, PHP, or other type of document being loaded into the browser. It is loaded inside the window object and comes with its own set of properties like title, URL, cookie, and others. Essentially, to access a property for the window, you would use window.property, while for the document, it would be window.document.property or simply document.property.
For further information and screenshots, check out the following article:
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