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Home » dom-events

Tag: dom-events

ReactJS : eventListener tranistionend not getting cleaned up in useEffect

React JS April 9, 2021

I have an image carousel component which has a smooth transition between images using the eventListener transtionend. This event listener even though I have a cleanup function in place it creates a …

Javascript “this” value is undefined in function

JavaScript April 5, 2021

I am trying to access variables set at the “window” level (I believe). I am able to reference these in all functions, but when I try to reference it in a event listener function, the values …

Why does my Javascript calculator multiply the answer by 2 when pressing an operator following an equals press?

JavaScript April 1, 2021

I am working my way through The Odin Project and I’m currently stuck on the “Calculator” project. For the most part, considering my current Javascript knowledge, I am happy with how it works….

onbeforeunload event confirmation

JavaScript March 16, 2021

I am using Laravel and Vue js. I am creating a wizard which has three steps. And I am using onbeforeunload event for showing if a person tries to do anything unwanted. Now the thing is this event will …

How to run a function inside a event once?

AngularJS March 12, 2021

I have a function in Angular.js to determine if a user is inactive or active. When the user is active I want to execute a function after a certain time. I have it working but the function is currently …

read tabel value using jquery

jQuery March 4, 2021

good morning i wanna try to hide an icon using jquery in table data, if table data value reject then icon hide. but it doesnt seem right

Keydown event listener causes lagging, hanging, DOM thrashing in ReactJS

JavaScript February 27, 2021

I’m running a site locally and deployed with an 80 page modal in the React framework. I use state to move through the pages in the modal using the [currentStep, setCurrentStep] hooks. setCurrentStep …

React – TypeError: Cannot read property ‘setState’ of undefined

React JS March 30, 2020

I can’t figure out what’s wrong with my code. import React from ‘react’; import ‘./App.css’; class Clock extends React.Component { constructor(props) { super(props); …

Error using template slot and slot-scope on VueJS

JavaScript January 14, 2020

Error using a slot and slot-scope on VueJS to put into a column of a table. A template as follows: