Is it possible for Angular 2 to selectively load specific modules for the frontend, or does it always have to load the entire application with all modules included?
Is it possible for Angular 2 to selectively load specific modules for the frontend, or does it always have to load the entire application with all modules included?
If you want to improve the loading performance of your Angular application, consider implementing lazy loaded routes and modules.
Check out the documentation for more information:
https://angular.io/docs/ts/latest/guide/ngmodule.html#!#lazy-loading-modules-with-the-router
When using lazy routes, components in a particular route are only loaded when that specific route is accessed. If a component is utilized in multiple routes, it should be placed in a shared module that loads upfront.
Keep an eye on the network tab in your browser when working with lazy loaded route modules. Components will be dynamically requested and loaded as you navigate through different routes.
For a practical demonstration of lazy loading, take a look at this lightweight GitHub project:
https://github.com/danday74/angular2-router-modular
This project is derived from the Angular2 quickstart project, with modifications made only to the files within the app folder.
Pay close attention to the following file:
https://github.com/danday74/angular2-router-modular/blob/master/app/app-routing.module.ts
Feel free to clone the repository using `git clone`, install dependencies with `npm install`, and start the project with `npm start` to further explore and experiment with lazy loading in action.
I attempted to retrieve the array of first names from the observable below, which receives its response from an API (hardcoded here). I aim to store the original data in a separate observable. Thus, my implementation is as follows: this.initialData = Obse ...
I am attempting to update and insert data in mongoose. After sending some requests, I receive the following result: let obj = [ {name: aaa, age: 10}, {name: bbb, age: 11}, {name: ccc, age: 12}, ] My goal is to update all existing documents an ...
Here is the current code that I've been working on. After switching it to a new folder, I encountered an error that wasn't present before. I made sure to reinstall all the necessary modules in the package.json file, but the issue persists. Is the ...
I am facing a challenge with a recursive JSON structure that needs to be stored as a series of maps with keys. The structure comprises flows and subflows that have references to each other. Here are the type declarations, noting that the issue lies in the ...
Encountering an issue while trying to load a typescript file from HTML, resulting in this error Here is the code snippet for the page: export default function Home() { return ( <> <Script src="/static/main.tsx"></Scri ...
I recently developed a function to generate dynamic elements. However, I encountered an issue where instead of returning the precise type of the element, it was producing a union of various <HTMLElementTagNameMap> types. function createCustomElement( ...
I included the MatFormFieldModule in my code like so: import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppRoutingModule } from './app-routing.module'; ...
After creating a DOM element with this.document.createElement('h1'), I am looking to insert the element into a section tag using a template reference variable (myTRF), similar to the example below: <section> <h1 #myTRF>This is my he ...
I have developed a customized form control component which functions like an enhanced input field. The main purpose of creating this custom component is to ensure easier UI modifications. By having a custom component, any fundamental changes in the styling ...
On my website, I have a header menu that includes buttons for "home" and "about us." The default page is set to the home page. Within the home page, there is a specific link. When this link on the home page or the "about us" button is clicked, I want the ...
When creating a CRUD for an entity using a REST API, what is the recommended best practice for updating data? On the main screen where there is a list of elements and a new element is added through a modal, should the list be updated locally or by callin ...
After successfully installing rc7, my module and component are functioning as expected. Now, I am looking to utilize it on a webpage by only bootstrapping modules and components if the current page contains the necessary selector. Although I have declare ...
When a user logs in, their information is stored in req.user. They should be able to edit their details (first name, last name, email) using a form displayed with the /profile route as shown below: app.get('/profile', checkAuthenticated, (req ...
Let's consider an object that looks like this: const person = { id: 1, name: 'Emily', age: 28, family: { mother: { id: 101, name: 'Diana', age: 55 }, fathe ...
I'm working with restful services that accept enum values as either numbers or strings, but always return the values as numbers. Is there a way to handle this in TypeScript? Here's my attempt at it, although it's not syntactically correct: ...
Exploring ways to share TypeScript classes or interfaces between a React + TS frontend and node + TS backend. Converting class instances into JSON poses a challenge as TS types are removed during compile time. Considering options for defining objects in a ...
As a newcomer to Node/Express, I have been exploring the documentation and following tutorials. I noticed that there are two different ways to initialize the Express Router. Is there any significant difference between them? First Method: const express = ...
My index.js file serves as a node.js server : var express = require('express'); var app = express(); const PORT = process.env.PORT || 5000; var serv = require('http').Server(app); app.get('/', function(req, res) { res.sen ...
Having trouble running ng serve or ng build due to an error message stating that 'router-outlet' is not a recognized element. The Angular application structure looks like this: app.module.ts: import { NgModule } from '@angular/core'; i ...
I'm trying to incorporate an "upload" button into my table: Below is my TS file with dtOption : ... order: [[3, 'desc']], dom: 'Blfrtip', stateSave: true, buttons: [ ...