When displaying data from an array in a table, is there a specific condition I can use to prevent iterating through the array when it's empty?
<tr *ngFor="let something of (adunit.unit_price)">
<td>{{something.updated_date | date : 'medium' }}</td>
<td>{{ something.value }}</td>
To display your table conditionally, you can use the *ngIf directive.
<table *ngIf="adunit.unit_price.length">
<tr *ngFor="let something of (adunit.unit_price)">
<td>{{something.updated_date | date : 'medium' }}</td>
<td>{{ something.value }}</td>
</tr>
</table>
In my opinion, incorporating an Elvis operator that verifies the presence of the parent variable beforehand is crucial. Here's how it can be implemented:
<tr *ngFor="let item of adunit?.unit_price">
<td>{{item.updated_date | date : 'medium' }}</td>
<td>{{ item.value }}</td>
No need to stress about iteration, Angular has got that covered for you. If the array happens to be empty, no iteration will take place.
Within my TypeScript code, I have defined a List as myList: Package[]. The structure of the Package model is outlined below - export class Package { ID: Number; Price: Number; } I am trying to retrieve a Package object with the lowest Price value using ...
As a beginner in Angular, I am exploring ways to retain user input and interactions on my webpage even after a refresh. After some research, I came across using local storage as a viable solution. A different answer suggested utilizing the following code s ...
I'm currently diving into the world of writing unit tests in Angular. One thing I've done is create an httpService with a method called sendToServer, which every component utilizes to send requests to the server: sendToServer(method, url, body, ...
I am currently in the process of setting up unit tests for my Next.js project. I have carefully followed the guidelines provided in the official documentation on testing. The issue I'm encountering appears to be related to either the configuration it ...
Is there a method to specify only a portion of the object type, while allowing the rest to be of any type? The primary objective is to have support for intelliSense for the specified part, with the added bonus of type-checking support. To demonstrate, let& ...
Could you help me figure out how to properly implement an enum in my drop-down so that I can only display one value at a time? Currently, I am seeing both the key and the value in the list. This is my enum: export enum VMRole { "Kubemaster" = 0, "Kub ...
Currently, I am reviewing some code that utilizes the npm utility classnames found at https://www.npmjs.com/package/classnames. Within the scss file, there are various classes with identical names (small and large), as shown below: .buttonA { &.smal ...
I'm struggling to figure out the correct method for importing a Typescript npm module. Here is my current approach: module package.json { "name": "my-module", "main": "src/myModule.ts" } module src/myModule.ts export module MyModule { // Co ...
For the past six months, I have been utilizing async/await and have truly enjoyed the convenience it provides. Typically, I adhere to the traditional usage like so: try { await doSomethingAsync() } catch (e) {} Lately, I've delved into experimenti ...
Webpack-starter has been a great tool to work with, but I need something simpler for my mind. That's how I first started using webpack with react and redux. My goal is to gradually build up from the basics. -simple -dist index.html -s ...
I'm working on developing a library that will export both server components and client components. The goal is to have it compatible with the Next.js app router, but I've run into a problem. It seems like when I build the library, the client comp ...
I wanted to incorporate a jQuery function that utilizes an external library within my component, so I included its library in angular.json "scripts": [ "node_modules/jquery/dist/jquery.min.js", "node_modules/popper ...
I recently made changes to my routes by switching them from lazy loaded using a string reference to lazy loading through a call to import. However, I am facing an issue where every time I try to navigate to one of the pages, I encounter the following erro ...
When calling the Subject.subscribe method, an error is output as follows: TypeError: Cannot read property '_subscribe' of undefined at BidirectionalSubject._subscribe (Rx.js:10239) at BidirectionalSubject._subscribe (Rx.js:10239) at Bidirection ...
Although I've found plenty of resources on binding Angular HostListeners, I'm curious about using RxJs to stream it instead: @HostListener('document:click', ['$event']) handleClick(event: Event) { // etc } I want to cre ...
Is there a way to focus the next input field in React Native specifically on Android? It seems that the focus() function is only available in IOS. Any suggestions on how to achieve this? I am using React Native with TypeScript. https://i.sstatic.net/qzla ...
Imagine I have a generic TypeScript function that looks like this: function performAction<X>(input: X): X { //... } Now, let's consider a specific interface called YourType: interface YourType { a: string; b: number; } I aim to exp ...
I utilized the bootstrap table to create a table, but unfortunately, the fields are not displaying correctly. How can I rectify this issue? Only the first field is accurate. https://i.sstatic.net/vkKkR.png ...
Below is the display from my project's output window view image description here In the image, you can see checkboxes on the left and cards on the right. I want that when a checkbox is checked, only the corresponding data should be shown while the r ...
Is it possible to achieve an automatic update (2-way binding) of a property in the parent controller from a child controller without explicitly passing an @Output event into the child controller, similar to the method shown in the following example: Plunk ...