Preloading strategies: Boost up Angular App Loading Time

Preloading strategies: Boost up Angular App Loading Time

Get to know these Preloading Strategies to reduce Angular App loading time

Get to know these Preloading Strategies to reduce Angular App loading time

Image for post

User experience is one of the most critical factors for successful web applications today. And if we can optimize app loading time, it will undoubtedly establish a positive first impression.

Who doesn’t love swift and smooth web apps, after all?

In this article, I will show you how to improve app loading time by following a set of preloading strategies. Let’s start with an introduction.

What is preloading in Angular?

Preloading means loading data before some event, either synchronously or asynchronously.

Angular documentation describes two types of preloading mechanisms.

  1. Preloading modules — Loading modules asynchronously in the background is called preloading modules. This technique should be used with lazy loading.
  2. Preloading component data —Using resolvers for the routes to block a component from rendering until the data is available.

The main focus of this article is preloading modules. Since you now have an idea about what preloading means, let’s look at the benefits of it.

Why do we need preloading?

Before diving into the benefits of preloading modules, let’s take a look at what lazy loading does, given that it’s essential for preloading.

Lazy loading

If all the angular modules are loaded at once when a user visits the app, it increases the load time. Lazy loading resolves this issue by loading modules on demand. It reduces the initial bundle size, hence improving app load time.

Preloading is a mechanism to further optimize loading time by loading modules in the background.

Now let’s see preloading in action.

routing preloading angular

What is Geek Coin

What is GeekCash, Geek Token

Best Visual Studio Code Themes of 2021

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Angular Route Guard: Implement Route Guard in Angular 10

Angular route guard allows us to grant or remove access to certain parts of the navigation. Angular canActivate guard prevent unauthorized access. Let’s perform a practical and see how we can set up a guard for our angular application.

Install Angular - Angular Environment Setup Process

Install Angular in easy step by step process. Firstly Install Node.js & npm, then Install Angular CLI, Create workspace and Deploy your App.

A Complete Guide To Routing in Angular

Angular Router is a powerful JavaScript router built and maintained by the Angular core team that can be installed from the @angular/router package. It provides a complete routing library with the possibility to have multiple router outlets, different path matching strategies, easy access to route parameters and route guards to protect components from unauthorized access. A Complete Guide To Routing in Angular

Angular Route Params: How to Pass Route Params in Angular

To access route parameters and query parameters in Angular, use ActivatedRoute service. The ActivatedRoute service provides Observables through which we can subscribe to the values of route params and route query params.

Basics of Angular: Part-1

What is Angular? What it does? How we implement it in a project? So, here are some basics of angular to let you learn more about angular. Angular is a Typesc