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I am trying to create a floating label input field, i am able to achieve but on click of outside the input, the label text is over-aligning the input field. How could i make the label on the top when there is text or cursor active in input field.

Input.js

I just started learning OpenGL by following https://learnopengl.com/Getting-started/Hello-Triangle, following the tutorial I wrote the code as per my understanding which compiles and does give me an output but instead of an orangish triangle it shows a white one. If I replace the shaderProgram() with the code from https://learnopengl.com/code_viewer_gh.php?code=src/1.getting_started/2.1.hello_triangle/hello_triangle.cpp it works (shows the orange triangle), so I think I narrowed the problem to shader program compilation, I just couldn't find what's wrong with it, following is my code.

I have a Routes component that returns Stack.Screen routes based on user state, or a loading screen depending on a loading state coming from a context.

For some reason when calling navigation.nagivate to change screens, it just redirects back to whatever the initialRouteName was.

I suspect it's because the loader isn't returning any routes and the navigation.navigate call is lost somewhere, but I'm unsure.

MVCE https://codesandbox.io/s/morning-glitter-b8w5j?file=/src/App.js

Routes.js

Hello there I have a text and I'd like to retrieve only the sentences that contains certain words. Here is an example.

I have a simple React app that I am going to post entirely (it is not that long). The app doesn't work but doesn't throw any error either. I tried to log the states and it turns out they never change. I am using big things like custom hook and useReducer, but I suspect I lack on understanding basic principles of how react works.

Here's a short summary of how the app should work:
There is a Form component which returns a series of custom Input elements (here only two).
The Input component outsources the validation logic to a custom hook which returns [isTouched, isValid, dispatcherOfTheCustomHookReducer]. When an event occurs, the Input component calls the dispatcher of the custom hook and then styles should be applied to the element based on the state returned by the reducer in the custom hook.
Also since the Form component needs to know if the form as a whole is valid, each Input has an onChangeValidity property used to lift up the isValid state. In theory the form should appear neutral at the beginning and then, after you focus and blur an input this should become either valid (blue background) or invalid (red background).
I should probably reset the inputs after submission and add something else, but for now I want to make the app work. At the moment the states never changes and the forms appears always neutral (white).

You may prefer look at the files in codesandbox.

App.js

Sandbox link.

I'm trying to rotate a static compass icon (called towards-0-deg / f0b1) to reflect the wind direction.

I tried windRose = iconRotate.rotate(data.weather.deg); and later windElement.innerHTML = ` ${windRose.rotate(data.weather.deg)}` + `${weather.wind} km/h`; but I get: Uncaught (in promise) ReferenceError: iconRotate is not defined.

What am I doing wrong here?

After compiling I receive this error message:

Failed to compile src\App.js Line 4:1: 'state' is not defined no-undef

Code App.js:

I have an ordered tuple(its 2dimensional, column 0 are my endings, which I want to compare & column1 there are the complete urls), at "column"[0] I have to compare the first value with the second one, if they are the same, save the first value to other list and repeat. I want to compare every item with the following one, if they are euqal or not.

tuple:

I am building a website with the following link structure:

1. /blog
2. /blog/post1
3. /preview

The /blog url lists all the blog posts, the /blog/post1 shows the post in edit view and the preview button in the same edit view links to /preview url that shows the preview of the edited version. My initial idea was to use a /blog/post1/preview url but with the use of it became complicated. It did not work because of the whole exact issue where I had to correctly match three urls that start with the same address. So I switched to /preview. Now, I can get the first to urls working but the /preview renders nothing on the screen. Is it because of where my and are defined in my app. I have following structure: