How do I make my JavaScript file faster?

How do I make my JavaScript file faster?

Here are few steps that could optimize the performance of your web pages.

1. put css at top.
2. put javascript at bottom.
3. cache everything.
4. set far future expire header.
5. return 304 when appropriate.
6. use unique url for css and js for propagating the change.
7. apart from that use ajax wherever required.

Is CSS read from top to bottom?

The foundation of writing efficient CSS is knowing how browsers parse selectors. The common assumption is that CSS is parsed from left-to-right just as we read English. In reality, browsers use bottom-up parsing for enhanced efficiency, which in plain language means your selectors are read from right-to-left.

Which is the most efficient way to add JavaScript?

On a side note, none of the JavaScript files will be shared between pages – it will literally be specific to what you’re currently viewing. Any thoughts? I think the best balance between efficiency, and using proper wordpress methods for adding javascript would be adding something along these lines to your themes functions.php file.

How to add JavaScript to a HTML document?

We can also create a separate file to hold the code of JavaScript with the (.js) extension and later incorporate/include it into our HTML document using the src attribute of the

Which is the best way to add JavaScript in PHP?

For Example: This gives you full control over what gets loaded where, a centralized location in your themes functions.php file for editing what gets loaded where: and, this way uses wordpress methods for adding javascript to your posts and pages safely. What I would do is either place in the footer or header and use php conditionals.

How to get folders and files in JavaScript?

In my project I use this function for getting huge amount of files. It’s pretty fast (put require (“FS”) out to make it even faster):