How can I optimize the loading speed and performance of my web application’s JavaScript code?
To optimize the loading speed and performance of your web application’s JavaScript code, there are several steps you can take. These include minimizing and compressing your code, reducing HTTP requests, leveraging browser caching, and optimizing your code for execution. Minimizing and compressing your code involves removing unnecessary whitespace and comments, as well as using a minification tool or bundler to reduce the file size. Reducing HTTP requests can be achieved by combining or minimizing external JavaScript files. Leveraging browser caching helps in serving previously loaded resources from cache, reducing server requests and speeding up subsequent page loads. Optimizing code execution involves techniques like code splitting and lazy loading to load only what is necessary. Utilizing modern JavaScript features like async/await and deferring non-critical scripts can also improve performance.