I'm attempting to apply a class if an item exists within the array, but I'm struggling with it.
<div *ngFor="let item of someList">
<button [ngClass]="{'isSelected': selectedArr includes item}"></button>
..
selectedArr holds the array that includes certain items.
chosenArray.contains(element) is a viable option. Take a look at: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes
Keep in mind that if element is an object, chosenArray must contain the exact same object, not just an object with identical properties. Otherwise, you will need to devise an alternative approach to compare the object properties for a match. Nevertheless, any valid JavaScript statement can serve as the value for isChosen.
<button [ngClass]="{'isChosen': chosenArray.contains(element)}"></button>
Another approach is to utilize [class.className].
<div [class.isActive]="activeItems.includes(item)"></div>
I have implemented a messageBox functionality using p-toast. When a user clicks on delete, they are prompted with a yes or no option before hitting the API to delete the item. The issue I am facing is that if I click on the delete button for one item, sele ...
After recently diving into the Observable and Observer pattern, I came across various resources that describe Observable as a producer and Observer as a consumer. However, as I analyzed the code snippet below, I found myself puzzled by the role of the obse ...
I am utilizing "@angular/core": "^5.0.1", "@angular/material": "^5.0.0-rc.1", "@angular/cdk": "^5.0.0-rc.1". In my code, I am checking for the presence of a XXXqaName attribute in all fields, so I created a directive with an @input attribute that accepts ...
When retrieving data from Firestore, I am able to print the entire object using doc.data. However, I am having trouble accessing the specific value of unixtime as it is coming through as undefined. I need help in correctly applying my type model so that I ...
I'm currently working on a website and I'm in need of some assistance to fix the mobile view. The main issue I'm facing is with the menu which contains 5 buttons. While I'm happy with how it looks on a laptop or desktop, the mobile view ...
After following a helpful guide on setting up TypeScript in an ASP.NET 5 website project using Razor Pages, I decided to enhance my typings with Node modules instead of just importing as 'any'. My goal was to integrate a Node module like EthersJ ...
After implementing a ngFor loop in my component to render multiple CdkDrag elements from an array, I encountered the issue of their positions updating when deleting one element and splicing the array. Is there a way to prevent this unwanted position update ...
Recently, I made updates to my Ionic/Angular project and now it is running Angular version 16.1.3 along with TypeScript version 5.1.3. In addition to this, my project also includes the following dependencies: "lodash-es": "^4.17.21", ...
I am currently in the process of setting up an Angular application to be hosted from a subdirectory of an existing website. The main website is located at https://localhost/abc, while the Angular app is being served at http://localhost:4200 using ng serve. ...
In my development project, I have implemented PrimeNG Turbotable with the code <p-table #dt. Based on information from here, using dt.reset() will clear the sort, filter, and paginator settings. However, I am looking for a solution to only reset the pa ...
My method aims to fetch a value asynchronously and return it, providing a default value if the value does not exist. async get(key: string, def_value?: any): Promise<any> { const v = await redisInstance.get(key); return v ? v : def_value; } W ...
We are looking to change the filter options in the status field (last row) from true/false to Active/Inactive. While there is a coding method to achieve this, we are struggling as we are using a table template. It seems like it should be a simple task but ...
I recently created a clamp function to restrict values within a specified range. (I'm sure most of you are familiar with what a clamp function does) Here is the function I came up with (using TS) function clamp(value: number, min: number, max: number ...
I've been working with Angular and using TypeScript. When importing a file in Angular, the syntax usually looks something like this: import { MyService } from '../../../folder/child-folder/my-service.service'; As I progress with my project, ...
Developed front-end with Angular 16. I have implemented a checkbox dropdown for filtering, but it requires clicking somewhere on the page to apply the filter. Using Selenium Java automation framework, I can locate web elements and confirm that the checkbox ...
Storing the user's information such as email, name, age, phone number, and uid is essential. In the user.model.ts file: export interface User { uid: string, name: string, email: string, phoneNumber: string, age: string } In auth. ...
After spending nearly a full day on this, I'm still struggling to find a solution. The issue lies with a basic http.post request: import { Component } from '@angular/core'; import { Http, Response, Headers, RequestOptions } from '@ ...
Is there a way to create an enum from a JSON REST API? Here is the code I currently have in my service.ts file: getDataFromJson(): Observable<any> { return this.httpClient.get<any>(`../../../assets/gender.json`) .pipe(map(data => ...
I just want to store and pass the current props.url to the videomodal so I can show the same active video on the video modal. I can't use useState in the map. How can I pass it? Or is there any other solution? Videos.tsx ( props.url must be in the &l ...
Currently, I'm facing an issue where I want to change the icon of a button when it's selected. The problem is that using map affects all buttons even if only one is selected. // ... const [clicked, setClicked] = useState(false); <Button sta ...