radio | A simple javascript web radio visualizer | Audio Utils library

Hi I am looking for help to study pre-existing models that are IoT based but has applications such as radio frequency identification, emergency related, and some form of access control, a paper in that area is ideal. Thanks in advance!

I have the table retrieve from database. Each row have its own action column where there is radio button like po,ao,rac,rap,cancel,hold and ids are supplied via hidden field. How can I loop through all the datas and all respective ids to update in the database.My Database table name is docs where radio button values should submit updated in payment_comment field in database: I dont understand how to loop through all respective ids and update in database.

Here is my view:

I'm new in the Vueniverse (using Vue.js 2) and I'm struggling with watch. On mounted, I call an API and set the radio button to the value I got from the API, so basically I have two radio buttons with values 1 and 0 (true/false).

I think the watcher works correctly, because it does trigger when the value is changed. However, I don't want it to trigger on the initial change - that's when I first set the value from the backend.

I've tried with different lifecycle hooks, such as beforeCreated, created and so on and it always triggers.

Probably it's something easy to do but I can't figure out how and don't find information on the Internet (might using the wrong keywords).

The code:

i am trying to use radio button to switch between html divs. On page load i want to select first radio button and respective html div but when i click on other radio button it should show other div and then toggle between divs on click of respective radio buttons

I have tried following solution

I have get these object whenever I click the next or previous button, it'll display like this in my console.log

Here is what I do to get it out console.log(dataQuestion[this.state.step]) (Step is for moving index whenever I click)

But when I add console.log(dataQuestion[this.state.step].question_desc) to get the question_desc out, it'll get Cannot read property 'question_desc' of undefined. I don't know what I'm doing wrong. Can someone give me some answer.

Here's my piece of code.

I am using bootstrap tooltip that has black background and white letters on it. The entire tooltip and radiobutton is inside the update panel. when I click on the radio button and postback occurs, tool tip looses the black background and becomes white. I am not sure what am I doing wrong. I have several controls inside the update panel so I dont want to use seperate update panel for each control. Below is my code:

I'm trying to learn form validation with yup and react-hook-form and, ideally want to set the validation to also require at least one of the two different-named radio options, but first understand why the isValid variable is false.

Here's my code:

I'm trying to limit a calculation only when a field is blank. I have many other fields that are calculated simultaneously, I would like to limit the calculation to only the fields that have not been filled.

I don't know JS very well, so I hope to be able to find help here ... Thanks for any answers, I leave more info below.

Basically everything works fine. However, when the bodyfat field is empty, the calculation for BMR and TDEE Katch McArdle and Cunningham Formula is performed.

What I am trying to do is to calculate the McArdle and Cunningham Formula fields only when the Bodyfat field contains values.

Im new to JavaScript, I'm using vanilla js , html and css to survey website where user can add question, and option as well, when they click a button it will create a container which they can fill with the 'tag:textarea'. I'm using the 'createElement()', 'setAttribute()' method for creating a new container. But since each container has so many nested nodes or components, I have write a tons of boilerplate code to create a container, plus I have to change the id of some element with the nested 'Hell' , It become so hard to managed. My html code is Below: