I’m drawing and coloring lines based on data with D3. I now want to update the color of these lines based on different features in the same data set but my color-changing function (colorP2) does not work–I know this color change looks useless, but it will later be triggered by a button. Any ideas?…
Tag: javascript
Push data into existing array using javascript
I am trying to find a way to build my custom array, but I am not able to do so. What I have done so far: I have my array constructed like so: const super_array = []; Further down into the code, I want to assign new data to the array, like so : Result: Right now, I get the
how to can i merge two functions into single function?
i want to make a table with JavaScript and i am fetching data from Api so i have created two function and i want to merge these functions in to single #output. my one function is fetch data from api and render out in table, second is fetch data from Api for filtering the data. index.js Answer Basically just d…
how to add tab component and load pages in tabs in react js app?
I have a react js app, that i’m working on. I created a myfirstcomponent, which call a rest api and displays some json data. Now I want to expand my app and add more components, say mySecondComponent. but i want to make it such that i create tabs for this. so I researched and based on the tutorials, i c…
Jest: TypeError: replaceAll is not a function
String.prototype.replaceAll() is a useful method and while building and executing everything works fine. However, all Jest-tests fail with the following error: These are my dependencies: How can I fix this behavior? Answer The problem This happens because replaceAll is a new function not implemented in all br…
child elements usage in shadow dom
Is there any constraint that’s preventing <thead>, <tbody>, <tr> and so on to be slotted in shadow DOM? Given the following example: renders into the following structure: The workaround would be to use templates and insert template content with JS in slotchange event handler, but I wou…
Javascript countdown timer timezone problem
is it possible to have the countdown timer same for all people regardless of their timezone, when i put a date now the timer will show different depending on the timezone, and i want them to sync up so everyone get the same time, because now the “DONE” will display at different times depending on …
Does internet speed afect browser JavaScript?
I wanted to know if browser speed affects the execution time of JavaScript code. For example, if I have this code Does it mean that someone with a 4G connection will get this code executed earlier than someone with a 2G connection Answer No, as I understand it, Java Script is run in your browser and your brow…
Line chart not displaying from JSON Data
actually I am trying to make a chart line using D3.js. I made x axis and y axis but now the chart line is missing. here is my json data: filterData([ ` { “Sparte”: “Beherbergung”, “Jahr”: 2020, “Monat”: “Januar”, “Beschaeftigte”: “1…
get data from dropdown for dynamic call api
So I use redux-hooks for state management, so in my application there is a dropdown, the value will be used to call api dynamically, in the action creator I made it like this but i got this error how to get the value from the dropdown so that it can be entered into the action creator? is it possible? sorry