Can we instruct Angular to execute the init function (or any other lifecycle function or custom function) when the component input changes, or do we need to manually trigger that function from the parent component instead of modifying the input directly?
Appreciate your responses!
Whenever a component's input is changed, the ngOnChanges lifecycle hook is triggered. This allows you to execute any other lifecycle hook or function as needed.
ngOnChanges(...args: any[]) {
console.log('onChange fired');
this.ngOnInit();
}
ngOnInit()
{
console.log('ngOnInit fired');
}
UPDATE:
In case you need to invoke the child component's ngOnInit from the parent component, you can utilize ViewChild as demonstrated below.
export class Parent{
@ViewChild(child) vc:child;
ngAfterViewInit()
{
console.log("ngAfterInit");
console.log(this.vc.ngOnInit());
}
};
export class child{
ngOnInit()
{
console.log('ngOnInit fired');
}
};
Incorporating ng-mouseover/ng-mouseleave along with tooltip-is-open to control the state of the tooltip, I have successfully implemented a tooltip that remains open when hovered over. However, when attempting to reorganize it into a directive with ...
My goal is to incorporate an input element with a tooltip and connect a function to the enter keypress event. Individually, each of these features works, but when combined, they seem to be causing an issue. The following is the code snippet: <input t ...
While utilizing the CKEditor 5 official demo, I noticed that the table content Toolbar includes Cell properties. This feature is crucial for my needs, but despite configuring my table similarly to the demo setup, the Cell properties do not appear. The dem ...
I have a service that retrieves data from a URL provided as a parameter, and it is functioning correctly. However, when attempting to pass this data to a controller's $scope in AngularJS, I am not receiving any data. var app = angular.module("Recib ...
I am currently working on creating an injectable singleton service for my application that will provide all components with information about the window width and height, as well as notify them when the page is scrolled or resized. Below is the code snipp ...
I've been working on an Angular application and ran into some trouble trying to use ng-if and switch within an ng-repeat loop. Here is the data structure I'm working with: **[{"_id":"52fb84fac6b93c152d8b4569", "post_id":"52fb84fac6b93c152d8b4 ...
Upon selecting multiple checkboxes for variants, I am retrieving checked data using the following method: get selectedIdsFromViolCategoriesFormArray(): string[] { return this.violCategories .filter((cat, catIdx) => this.violCategoriesFormArr. ...
My code snippet looks like this: portfolioList: MatTableDataSource<Portfolio>; ngOnInit(): void { this.backend.getStatement().subscribe( list => { if(list as Portfolio[]) this.portfolioList = new MatTableDataSource(l ...
I am facing challenges while attempting to create a Factory in AngularJS. I have moved the code from the controller to the factory and made a few adjustments for it to function properly. Here is the error that I am encountering: "El objeto no acepta la p ...
I have been attempting to retrieve data from the server using the $http service in angular.js and then utilize that data in my template with the ng-repeat directive. However, I am facing an issue where the fetched data is not being displayed properly, and ...
After adding rx-angular to my npm package and successfully installing it locally, I encountered some issues when trying to release it to production. It seemed to partially work but not entirely, leading to confusion due to errors that prompted me to manual ...
What could be the reason behind the error message npm ERR! could not determine executable to run? Currently, I am attempting to set up a basic Node.js application using TypeScript and Yarn. Yarn is a tool that I am not very familiar with. These are the c ...
Let's imagine a scenario where our application includes a books page. We are utilizing the following technologies: Angular, NGRX, jest. To provide some context, here are a few lines of code: The interfaces for the state of the books page: export int ...
My services contain an enum that I need to share with another service's method. How can I pass this enum as a parameter effectively? home.factory('myService', ['$dialogs', '$resource', function ($dialogs, $resource) { ...
I am brand new to ServiceStack and Angular, so I apologize if this explanation is a bit lengthy. After reading up on the topic at this Stack Overflow post, I'm hoping to configure my api service to be accessible from the root of my domain - in other ...
Recently, I started learning AngularJS and attempted to build a simple web page based on some tutorials. The page consists of two parts: one for user input using HTML and the other with JavaScript containing an if-else statement. However, I kept encounteri ...
Let's get started angular.module('app', [ 'ngCookies', 'ngResource', 'ngSanitize', 'ngRoute' ]) This is my simple factory. Nothing fancy here angular.module('app') .factory(&apos ...
Here is the code snippet I am working with: var me = this; gapi.auth.authorize({ client_id: client, scope: scope, immediate: true }, function (authResult: any) { if (authResult && !authResult.error) { me ...
Scenario using Angular Datatables In my previous experience with jQuery, I was able to accomplish the functionality shown in the images below: https://i.sstatic.net/VoT2A.png Each Tab displayed a datatable, with the count of filtered records shown next ...
Within my React application, I am displaying an Array and each entry in the Array is accompanied by an input element. These input elements are assigned a name based on the entry's ID, allowing users to enter values. To handle the changes in these inp ...