I’d like to trigger an action when a specific option is selected in select tag. @click works on every other tags, but when it doesn’t seem to work on option. Is there a directive like @selected where I can trigger an action when an option is selected? Answer You can’t attach events to <op…
Category: Questions
React Element Type is Invalid, why am I getting this error and how do I solve it?
I get the following error when trying to run my react site: “Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it’s defined in, or you might have mi…
How to check if string matches any of the strings in the database
I’m trying to check if string matches any of the strings saved in database, but with the code I have right now it checks only the first one My code: Answer You should not return if the key does not match as you want to continue comparing keys. Something like:
Why does html loaded within a div with a script not call javascript?
I’m trying to create a collapsible menu I can edit independently of any page I load it on without using any iframes. I’m new to web design; I’m familiar with CSS and HTML, and am just learning JavaScript. I have barely any familiarity with jQuery or AJAX. Here’s the script I’m us…
data through ajax for tagify whitelist
I’m trying to get the data through ajax for tagify whitelist. but I get the following mistake code is: when I test it with “alert (response);” displays the data – [‘123′,’333′,’763′,asd’] Answer You are trying to access a local variable from ca…
Any way to make sessionStorage reactive in Vue3?
Lets say I built an app, that fetches data through axios.get from a database every time it loads or is refreshed. This makes the app slow, so I want to only get the data in the initial load of the app and put it into sessionStorage. Problem is that sessionStorage is not reactive. When I do this: and want to
How to fix a this react filter?
I have created a database in firebase and I have fetch it in react, that is working correctly, but I want to include a search bar to filter the elements, my problem is that when I search for an element everything works but when I delete the text from the search input the elements do not appear again. Answer Y…
can I add non static method to external class using prototypes?
Can I add using prototypes function for a class instance? so I’ll be able to use this or __proto__ keyword inside my method, for example: this code works of course, but I wish to add something like which of course fails. is it even possible? Answer Your SayHello2 should be a non-arrow function to access…
How to display no data if the data is not in the list in jQuery Filter?
I have list of filter table with jQuery. If user is searching the data that existed in the table it will filter and displayed the data. But if user search data that not existed in the data I want to display the not found. How to I displayed the not found in the filter function ? Answer
Is there an easier way to combine several if statements using an array in javascript
I have a form where a user enters their address. This then checks their address against several destinations in the UK to see which city is their nearest. I want each destination to have different prices, for example London, UK = 50, Birmingham, UK = 200 etc. I have written a pretty rudimentary if statement w…