Setrend | Sentiment analysis and stock trend prediction for Tweets | Predictive Analytics library

If you change the order of the functions will work fine when you try to get Route /hq/article/trendtag,it will get the first /hq/article that find it,so you can change it like the code below the file is being read from the top, when it finds the route "/article/" before /article/trendtag even if you want to get /article/trendtag, he only considers the /article/ first part that found it.

If I understand your question, you want to iterate over the first string up to an index and display a "rolling" fun character while iterating the string.

Intuitively I think it is easier to think of of slicing the front of the first string to an index, and appending the fun character.

The tricky issue is using two separate timers/intervals to increment the index for the first string and to increment an index into the fun characters array. Here is a solution I came up with.

1. Use a React ref to hold a interval timer reference for the rolling fun characters.
2. Single useEffect hook to start the "rolling" fun character index incrementing on an interval. Start a timeout on incrementing over the first string char array, if there is still length to iterate, enqueue another timeout, otherwise run clean up functions to clear timers and state.
3. Slice the first string up to index arrayIndex and conditionally append a "rolling" fun character.

Code:

I missed this detail from the docs. Unlike react-window API, the overscan unit is pixel instead of row in virtual list, in my case I need to increase the overscan to 900px and it seems to be working now.

The way to accomplish this is actually quite simple. I ended up creating a Countdown component. I then use that component in my renderSurveys()function. The Countdown component has all the logic described above (with state). That way each component is unique to its own counter and state. Let me know if you need more clarification.

It looks like you'll have as many Modal components as you have items. You might want to go to a slightly different architecture and render the Modal only once, outside the loop.

You could potentially have a stateful variable called selectedId in which you can store the id of the book that you'll be updating.

The following might not work perfectly, but it should get you pretty close.

React components automatically re-render whenever there is a change in their state or props. A simple update of the state, causes all the User Interface (UI) elements to be re-rendered automatically. In your first file, you are making some API call which on success changing the state. Which will tell the react to re-render the component, and again it will do the API and it goes on.

Do all the side effects like API call in useEffect function with proper dependency array.

You need to promisify setTimeout and use asyc & await to synchronize the process. Try this solution.

There are two ways to do this.

1. As Fabian mentions it above, you can use ajax based form submitting to refresh the contents of the modal - it should be relatively easy to do.

2. You can have the form redirect to the same page and pass a variable back to the page that would tell it load the modal. It may not be perfect because the modal will open after the page is loaded, but there are times one might prefer that. You can look at this question for that: How I can open a materialize modal when a window is ready?

All the other answers here are correct and work well for your use case. I would like to take it a step further and introduce you to code-splitting. It is not necessary but you can always try it.

Presently, you are loading all the components you need at once when your Test component is loaded. If your imported components in the future get big or complex, the initial rendering can be slowed down.

Code splitting allows you to split your code into small chunks which you can then load on demand.

Here is a working sandbox.