quik | quick way to prototype and build apps | Frontend Framework library
kandi X-RAY | quik Summary
kandi X-RAY | quik Summary
[license] Setting up the tooling required to work on a modern day web app is hard, and makes quick prototyping much more difficult than it should be. Quik is a quick way to prototype a React application without any kind of setup. It can also generate a production-ready JavaScript bundle to use in your app. No setup required. Quik runs a simple server that compiles JavaScript files with Babel on the fly, so you can include ES201x files in a script tag directly,. Tip: You can add ?transpile=false to the script src to skip the transpilation. Quik also exposes a koa middleware which can be easily integrated with your server.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of quik
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QUESTION
When using JNA, I am receiving an Invalid Memory Access error when invoking the QLConnect method.
Here is my interface mapping the DLL:
...ANSWER
Answered 2022-Jan-31 at 19:05The first thing to check when you get Invalid Memory Access errors is your type mapping, which you correctly started with looking at the int return value. Turns out the String mapping for the other arguments, which works fine on *nix systems, needs a little special treatment on Windows.
By default Windows uses UTF 16 encoding, and JNA's default type mapping under-the-hood tries to convert Java String objects to UTF-16 encoded native strings (wchar*). This works fine for Windows API DLLs.
However, your custom DLL specified that the User Name and Password arguments should be in ASCIIZ format (null-terminated C strings).
You can force JNA to use an ASCII String type mapper by including W32APIOptions.ASCII_OPTIONS as a third argument when loading the DLL, e.g.,
QUESTION
I'm working in an environment where I most of the time have two terminal windows running beside each other. One of them is running a Python program together with a SQL Server. The other terminal window is just a regular Windows command prompt. To make it easier to keep these windows apart from each other I want to set the colors for the one that is running the Python program. I know how to do that with the following code:
...ANSWER
Answered 2021-Dec-06 at 13:09Did you tried changing directory inside python instead of cmd ?
QUESTION
I'm pre-populating a database with createFromAsset() It works, now I need to add indices to the DB, however Room is not able to handle this change.
This db is not in production, I re-installed the app after making the changes, my issue is not the common problem on how to migrate from version X to Y.
CodeThis is my entity
...ANSWER
Answered 2021-Dec-07 at 04:35it refuses to add it because it already exists,
Use CREATE INDEX IF NOT EXISTS myIndex ON myTable (col1,col2)
You should use it in the onOpen function.
Alternately if using Room 2.4.0-beta2 or greater then there is a prePackagedDatabase callback which you could use to do the same BUT only when the Pre-Packaged database is copied.
The
onOpenfunction will be invoked every time the database is built/opened (not an issue as the index existing will result in minimal overheads).Whilst the prePackagedDatabase callback is only invoked when the database is created/copied from the asset.
The
onCreatefunction only runs when Room creates the database. It does not create the database when createFromAsset (or File) is used. However, if you use fallbackToDestructiveMigration AND there is no Migration covering the from/to versions thenonCreateis called.
The correct solution would be to include the index in the Pre-Packaged database, it would then always exist.
I can't seem to understand why Room complains about the indice, it refuses to add it because it already exists, running an empty migration fixes the problem, not running any migration gives me a verification exception.
If you run a fresh installation, then as the index is defined in the Entity it will create the index. Hence why it already exists (IF NOT EXISTS doesn't create it if it already exists).
Not running a migration fails because room generates an identity_hash based upon the Entities. Change the entity and room sees that the identity hash has changed.
You may find looking at the generated java (visible from the Android View in Android Studio) looking for the class that is the class annotated with @Database but with the _Impl suffix and looking in that class for the createAllTables method. This includes all the tables and indexes that Room will create.
You would see the room_master table that holds the identity_hash that is compared against the one in the package. You would also see that Room includes IF NOT EXISTS on all CREATE statements.
QUESTION
I have a DF as below:
...ANSWER
Answered 2021-Nov-25 at 10:57It can be done using apply() and lambda functions
QUESTION
As stated in the title, I'm getting 'address already in use error' when trying to add socket.io to an existing express app.
It happens on every port so the only thing I can think of is it's trying to set port 8000 twice. I don't see where, however.
Here is the error in the console.
Here is my config.js
...ANSWER
Answered 2021-Jan-14 at 02:46The stack trace in the error appears like you are calling app.listen() somewhere (probably from your server.js - line 13). You need to go find that code and remove it. You only want to attempt to start your same server once and your http.listen() is already starting it once.
QUESTION
I am passing a function to a child component in React and it works perfectly when I call it directly in onClick of a button. But then when I move it into a separate function and call the function from onClick, it no longer works. I can verfity the function is being called with a log statement, but props.myFunction() never gets called. I've encountered this a few times now in React and it always confuses me.
I've looked at some other questions like this one, but its still not helping.
React: Can't call prop function when it is inside of another function?
This code works - it sets loggedIn to true in the parent when the button is clicked
...ANSWER
Answered 2021-Jan-03 at 23:40Just to demonstrate the difference between your two cases, take this example. When I call a function immediately in the returned JSX code, it fires as soon as the element mounts. However, in the second button, I have to click it before the logging will happen.
QUESTION
I want to create a number of JButtons which symbolize a specific time-intervall. All JButtons share basically the same actionListener: They mark their specific intervall as "free" ("Frei") or "not free" ("Belegt"). To do that, they not only just have to change text, but they have to call a method of another class, which uses their intervall as @parameter.
I create the JButtons with naming JLabels like this:
ANSWER
Answered 2020-Jun-28 at 14:24and int i is different for every JButton, because it needs to be the int i from that for-loop.
One way is to set the "action command" for the button.
When you create the button you use:
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