The value of the ng-loading attribute is an expression that when evaluated to true will replace the loading icon with the original content of the div. In there we have that styles part. Install the angular cli (ignore if already installed). How to Create Animation on Page Load For creating page loader, we need to install the ng2-slim-loading-bar package using the following command–. Another technique that was often suggested was outright reloading the page, which for a single page application is a bad idea. Over To You! ng new Angularloader. Angular Download . After extracting the critical rendering path CSS you should now have a smaller CSS script for the above-the-fold content. Angular This only happens on prod when creating static files and not in node development. Creating a Custom Loading Screen in Angular. (See below) That covers the basics, but let us walk through some detailed examples in … Here’s some other scenarios why you should lazy-load your stylesheets: Mobile performance. answered Jun 24, 2015 at 8:06. 5) Update App Module. To load a .js or .css file dynamically, in a nutshell, it means using DOM methods to first create a swanky new " SCRIPT " or " LINK " element, assign it the appropriate attributes, and finally, use element.appendChild () to add the element to the desired location within the document tree. Share. That is, not in the same place where the data is going to be displayed. We can load components by using the ComponentFactoryResolver to load multiple dynamic components. Loading You can see here the main styles, CSS, SCSS file is referenced. That’s because by default, browsers will load external CSS synchronously—halting all page rendering while the CSS is downloaded and parsed—both of which incur potential delays.