I have two components to show data. The table view and the graph view. Both components has the same data. I use a toggle switch button to switch between these views. This is my code: The default view is the graphview via chart.js. Both components works fine. This is my code to hide and show: When I click on t…
Tag: javascript
How to recover/pass event Object between functions in JavaScript
I’m trying to understand how the “event” object is passed and recovered between functions. It was my understanding that event is passed by default as an argument and after seeing the example below it’s confusing me even more how this works. How “…args” is getting the …
Panel – JSCallback function – Linking stream data to a JSObject in Echarts within a Panel dashboard
The goal is to stream data into panel and show the current temperature in a Gauge. Panel EChart Gauge Therefore I am using the callback function for the panel to retrieve a new temperature value and like to update the Gauge as well with the JSCallback function. Panel JSCallback Function I also looked into the…
TypeError: getItem is not a function when testing a component with node module hooks
I am learning React, and got stuck in testing one of my components. I use react-use-cart to manage the cart, this is how code looks The test breaks at “productInCart = getItem(product.id)” saying ” TypeError: getItem is not a function”. I’ve been stuck at this for several days, a…
how to map an api into a paragraph
Hi I am trying to map an array of an api to display paragraphs for every index within the array. However I keep getting an error : **> TypeError: undefined is not an object (evaluating ‘post.game_indices.version.name’)** But when I console log post and use my buttons below it displays what I wa…
Is it possible to remove unused imports with Prettier?
I have an Expo React Native app that has a ton of unused imports in components. I have Prettier setup for code formatting, is it possible to configure Prettier to also remove any unused imports across the project? I can’t see anything in the docs and I don’t know if there is a way to add extra esl…
Dates stuck in month loops
The dates go to one month either side and then get stuck in loops. Starting in June, it will go fine to end of July, or start of May, but then loop back to the end/start of those months instead of going further. globalDate is a React state defined const [globalDate, setGlobalDate] = useState(new Date()); Code…
How to make the span to fill empty space on current line and continue to show remaining text on next line
In the below code snippet example, after marked word science and theory there is a empty space at the end. Forcing the next span element to appear on the newline. How to make the next span element after marked word to fill the empty space. and then the remaining words of that span should continue display on n…
Uncaught Error: [Topbar] is not a component. All component children of must be a or
I have looked at the previous questions and googled for the answer and I think I almost know what the issue in here is, but don’t know how to solve it. Please tell me how to setup the topar and slidebar components here. Requesting my fellow coders to look at this one and thanks in advance. Answer The er…
filter and map in an object array
I can’t retrieve the user by his customer number. I use the includes function in filter, but this returns the error: Cannot read properties of null (reading ‘includes’) . Despite everything I’ve seen on the forum, nothing solves my problem. I have an array of user object, so I make a m…