Given two sources, one of which might be undefined how can I combineLatest of the two? const observable1 = interval(100); const observable2 = this.ref?.observable; // this is a reference to an angular viewchild that will not exist until some unknown…
Each of the following if statements works perfectly as long as the other if statement isn't present. I don't understand why having both if statements causes the function not to work. I've tried so many variations but can't figure it…
import React, { useState, useEffect } from 'react'; function Child() { const [time, setTime] = useState(new Date()); useEffect(() => { const interval = setInterval(() => { setTime(new Date()); }, 1000); }, []); return <p>The current time is: {time.toLocaleTimeString()}</p>; } export…
I see the filtered data on the screen, but the original data does not appear when I clear the input Here I show _todayShare in the <a> tag as an item in order <span>Share</span> <input [(ngModel)]="sharedsearchText" (keyup)="applyFilter(sharedsearchText)" style="width: 50%; margin-top:…
Based on the article outlined in the React docs: You Might Not Need An Effect, they explain that logic which should only be executed once should be wrapped in an init clause. i.e. // Will run init flow only once…
I have a form that sends an email upon clicking a button. However, while the email is being sent, the button remains active, allowing users to click it multiple times, which interrupts the email-sending process. I want to add a…
I'm currently trying to make array type for my project what I want to do is, whenever I give params to type, I want to make type base on it. example: type Dimension = Number; type Point<Dimension, T extends Number[]…
I am fairly new to react, I'm building a website and I want to keep a page private if my user does not have sufficient scope to access it. I have the following code: Update: I tried just setting setCanAccess(true)…
first, I'm french, so please my apologies for my bad english, I also had a serious stroke twenty years ago, so it's quite difficult for me to understand new tools ( despite this, I still have somme good knowledge in…
I am trying to build an Angular (v17) application which lets the user to move around with drag and drop HTML elements, even between multiple browser tabs. Similarly to what neo.mjs is capable of (here is a demo: https://www.youtube.com/watch?v=-L43hntj3jk). I…