I have a web socket that receives data from a web socket server every 100 to 200ms, ( I have tried both with a shared web worker as well as all in the main.js file), When new JSON data arrives my main.js runs filter_json_run_all(json_data) which updates Tabulator.js & Dygraph.js Tables & Graphs with s…
How can I keep flex columns from expanding when hidden section opened?
What I’m trying to accomplish is having a hidden section opened by a button (the “Disclosure” button) but when that section expands I don’t want the column next to it to expand as well because there’s no need for it to do so. I feel like it has to be something in the Flex setting…
Typescript: Generic function should not return union of all types
I managed to type the object currentProps so TS knows which properties it haves AND each property has its individual type (not an union of all possible types). So far so good. Then I have this generic function overrideForIndex which gets one of the possible properties, and should return its value. But it can&…
useEffect debounce search technique
i’m trying to implement search functionality but i don’t want to call the api every time i type something . here is the code: Answer you can use the setTimeout() function and clearTimeout in the cleanup function and the useRef hook to get the previous state to call the API only once :
Possible to validate against elements in an array?
I am using validate to validate input, and I need to validate an input that has to be one of the numbers in my arr. If I try enum: arr, then it takes the entire array and not just one of the elements. Question Is it possible to get validate to use one of the numbers from arr? Answer
Pause a for loop until function is completed
I’ve been scratching my brain at this a majority of the day, I am attempting to download multiple files that have iterating ID’s, I use a for loop to iterate and call a web request that calls a function that downloads a file. However, I noticed files tend to get corrupted due to multiple files bei…
Run set interval when click from another component React
i want to trigger countdown of 60 seconds when user click from another component . so far i didn’t find any solution it is not working i search a lot but did not find.Thanks Answer Remember to clear your interval
React, getting Error: Invalid hook call. Hooks can only be called inside of the body of a function component
Can anyone help me with React Hooks basics, I am relatively new and couldn’t find proper help online I get error on const navigate = useNavigate() saying: Answer What they want for useNavigate (and all hooks) is to be called only at the top level of a React component or a custom hook. Don’t call Hooks i…
Unable to check all 3 conditions and return them in JS
I have a method that checks a con variable as true or false and return a device tag for each device, I could only get the first tag even though the 2nd, 3rd condition is true. How to check all the conditions and return all the devices. Answer As soon as you make a return, the function stops, everything after
Includes method doesnt return true for key extracted from Object.entries of Array
I am trying to filter objects who key’s correspond to values in an array of arrays. So 3 sets of objects each filtered by their placement in an array. (Objects are listed in an array.) I suspect this is a two-part question. Why doesn’t the Array.prototype.includes method return true, when the case…