I’m working on a complex multipage form using HTML, Bootstrap and JavaScript. What I’m trying to figure out is to validate each section of the multipage form and check if all required fields (if any) are actually valid so that the user can proceed to next section in the form. The following code sn…
Tag: javascript
Check if user is inactive (last time he logged in) node.js mysql database
I have a little question. I would like to check when a user was logged in the last time. If the account is inactive it will be deleted from the database. I have no clue how to implement this. or how to check the time the user has logged in the last time. Can someone help me, please… I would
Dynamic styling of className not working in react
I am trying to code along to a tutorial video but the dynamic styling of className isn’t working. Though it seems to work on regular CSS, I’m using styled-components instead but I don’t get the same outcome. The end result is supposed to be a differently styled “type” according t…
Event handler not displaying component
on clicking <button>, a click handler is invoked, in which a react component <ConfirmationDialog> is returned. But <ConfirmationDialog> is not getting invoked and displaying. why? // App.js // ConfirmationDialog.js Why is click handler handleClick not rendering <ConfirmationDialog> ? C…
Ways to get sum of two lowest positive integers (JS debugging failure)
I was doing this Codewar challenge of getting sum of two smallest integer. so I was trying to solve with this: It works, and later on I feel that const m is redundant, so I commented the whole const m line and then it doesn’t work now, by “doesn’t work” I mean it’s giving incorre…
Clear local storage on session clear
I want to clear localStorage on session clear, i.e when the user exits the browser. I am using window.onbeforeunload for this purpose, as shown below. The problem is that this function also removes item also on browser reload. Is there any way around this, or is it any better way on implementing this? Edit: T…
Mouse click event not working as expected
I’m trying to search for a contact in Whatsapp Web search bar, first I want to focus in search bar and then enter the contact to execute the search. I’m selecting the div with: Dispatch event returns true but has no effect in search box Answer You can just use element.focus() or element.select(), …
How do I pass objects from NodeJS to javascript files with EJS
Down below you can see I have a nodeJS server which passes down a data object to the index page. Inside of my index.ejs file I can receive this data using <%= data %> however this only gives [object Object]. However, what I want is to receive this data inside my javascript file as an acutal object so I …
Remove eventlistener
Help:-) How do i remove this listener? _handlePlay looks like this: i tried… and more desperately: but the listener wont leave the scene? I have the bind as I am in js and web component context /regards Answer The function you pass to removeEventListener needs to be the same function that you pass to ad…
Cannot set headers after they are sent to the client bug with Express and node-postgres
I’m stuck with the issue of sending response back to the caller after retrieving something from Postgres database. It appears that headers are automatically written after fetchUserDB is executed (regardless of its success). This leads to the error ERR_HTTP_HEADERS_SENT when I try to return the response …