cadet-frontend | Frontend of Source Academy online learning environment | Learning library
kandi X-RAY | cadet-frontend Summary
kandi X-RAY | cadet-frontend Summary
The Source Academy (is an immersive online experiential environment for learning programming. It is developed by a community of learners (also called "Source Academy") who use the book Structure and Interpretation of Computer Programs, JavaScript Adaptation (SICP JS). This repository houses the sources for the frontend of the Source Academy, written in ReactJS with Redux.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of cadet-frontend
cadet-frontend Key Features
cadet-frontend Examples and Code Snippets
Community Discussions
Trending Discussions on Learning
QUESTION
I have been trying to learn about functional programming, but I still struggle with thinking like a functional programmer. One such hangup is how one would implement index-heavy operations which rely strongly on loops/order-of-execution.
For example, consider the following Java code:
...ANSWER
Answered 2022-Mar-07 at 21:17This is not an index-heavy operation, in fact you can do this with a one-liner with scanl1 :: (a -> a -> a) -> [a] -> [a]
:
QUESTION
system:Mac OS software:AnyLogic 8 Personal Learning Edition 8.7.6 language: Java
When I run my model, the console print this info:
...Warning: the fonts "Times" and "Times" are not available for the Java logical font "Serif", which may have unexpected appearance or behavior. Re-enable the "Times" font to remove this warning.
ANSWER
Answered 2021-Aug-01 at 11:11We also recently had this issue on a mac running the latest public beta of Monterey.
For some reason the Times font was no longer installed or active on the Mac.
You can check in FontBook
You can simply reinstall it
I struggled to find a source online - her is one suggestion - https://www.freebestfonts.com/timr45w-font
QUESTION
Im attempting to find model performance metrics (F1 score, accuracy, recall) following this guide https://machinelearningmastery.com/how-to-calculate-precision-recall-f1-and-more-for-deep-learning-models/
This exact code was working a few months ago but now returning all sorts of errors, very confusing since i havent changed one character of this code. Maybe a package update has changed things?
I fit the sequential model with model.fit, then used model.evaluate to find test accuracy. Now i am attempting to use model.predict_classes to make class predictions (model is a multi-class classifier). Code shown below:
...ANSWER
Answered 2021-Aug-19 at 03:49This function were removed in TensorFlow version 2.6. According to the keras in rstudio reference
update to
QUESTION
I started learning about discord.js but now I am facing this issue. I tried some googling but couldn't manage to fix it.
...ANSWER
Answered 2021-Aug-07 at 16:34You need to specify the events which you want your bot to receive using gateway intents.
Instead of
const client = new Discord.Client();
Use
const client = new Discord.Client({ intents: [Enter intents here] })
For example
const client = new Discord.Client({ intents: ["GUILDS", "GUILD_MESSAGES"] })
Here's another useful link: https://discord.com/developers/docs/topics/gateway
QUESTION
I got this error when learning Next.js, using npx create-next-app
command according to site documentation here https://nextjs.org/docs/api-reference/create-next-app. Everything works until I start the server,
Error stack:
...ANSWER
Answered 2021-Nov-24 at 21:38I found this solution https://github.com/webpack/webpack/issues/14532
if using bash just run
NODE_OPTIONS=--openssl-legacy-provider
before any commandadding
NODE_OPTIONS=--openssl-legacy-provider
to package.json
QUESTION
ANSWER
Answered 2021-Aug-16 at 13:32The ItemProperties
component has multiple root nodes because it renders a list in the root with v-for
.
Based on the class name (infobox-item-properties
), I think you want the class to be applied to a container element, so a simple solution is to just add that element (e.g., a div
) in your component at the root:
QUESTION
I am trying to use tailwindCSS in a ReactJS app
These are the scripts commands in package.json
file
ANSWER
Answered 2021-Dec-18 at 22:00It looks like the Tailwind configuration from CRACO is not needed anymore.
https://github.com/facebook/create-react-app/issues/11771#issuecomment-997217680
Look at Tailwind 3.0 install steps: https://tailwindcss.com/docs/guides/create-react-app
QUESTION
I have a large dataset (~5 Mio rows) with results from a Machine Learning training. Now I want to check to see if the results hit the "target range" or not. Lets say this range contains all values between -0.25
and +0.25
. If it's inside this range, it's a Hit
, if it's below Low
and on the other side High
.
I now would create this three columns Hit, Low, High and calculate for each row which condition applies and put a 1
into this col, the other two would become 0
. After that I would group the values and sum them up. But I suspect there must be a better and faster way, such as calculate it directly while grouping. I'm happy for any idea.
ANSWER
Answered 2022-Feb-10 at 16:13You could use cut
to define the groups and pivot_table
to reshape:
QUESTION
#include
int& addOne(int& x)
{
x += 1;
return x;
}
int main()
{
int x {5};
addOne(x) = x;
std::cout << x << ' ' << addOne(x);
}
...ANSWER
Answered 2022-Feb-02 at 00:42Since C++17 the order of evaluation is specified such that the operands of =
are evaluated right-to-left and those of <<
are evaluated left-to-right, matching the associativity of these operators. (But this doesn't apply to all operators, e.g. +
and other arithmetic operators.)
So in
QUESTION
I am new to flutter and recently tried to develop a test app for learning sake with latest version Flutter 2.5. By looking at some tutorial online, I have added flutter_native_splash: ^1.2.3
package for splash screen. And works fine.
However, when I launch app for the first time, it shows following debug message
W/FlutterActivityAndFragmentDelegate(18569): A splash screen was provided to Flutter, but this is deprecated. See flutter.dev/go/android-splash-migration for migration steps.
After visiting the above link, I am not able to understand much what is supposed to be done.
Code in pubspec.yaml
...ANSWER
Answered 2022-Jan-19 at 05:24AndroidManifest.xml
file.
Previously, Android Flutter apps would either set
io.flutter.embedding.android.SplashScreenDrawable
in their application manifest, or implementprovideSplashScreen
within their Flutter Activity. This would be shown momentarily in between the time after the Android launch screen is shown and when Flutter has drawn the first frame. This is no longer needed and is deprecated – Flutter now automatically keeps the Android launch screen displayed until Flutter has drawn the first frame. Developers should instead remove the usage of these APIs. - source
As per the flutter 2.8.0 update, The newly created project doesn't have this warning.
They removed unused API from Androidmanifest.yml
but still have belove mentioned code.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install cadet-frontend
Install a stable version of NodeJS. The active LTS or current version should work fine.
Clone this repository and navigate to it using "cd" in your command line or shell tool.
Run yarn install to install dependencies.
Run yarn run start to start the server at localhost:8000. It might take a couple of minutes for the server to start.
Point your browser to http://localhost:8000 to see your local Source Academy.
It might take a couple of minutes for the server to start.
Install a stable version of NodeJS. The active LTS or current version should work fine.
Clone this repository and navigate to it using "cd" in your command line or shell tool.
Run yarn install to install dependencies.
Copy the .env.example file as .env and set the necessary variables (refer below for more information)
Run yarn run start to start the server at localhost:8000. It might take a couple of minutes for the server to start.
The project requires some environment variables to be set to work properly. In the .env file a few things need to be set up:. Unless you need to use the shortener locally, you can leave these values blank. Otherwise, ask your backend engineer. If you are testing with a local backend, the values in .env.example match the default development configuration of the backend. Otherwise, your backend engineer should provide you with the configuration for the staging and/or production backend. n is an integer starting from 1. The numbers must be consecutive i.e. if you have 5 authentication providers, the numbers must be 1, 2, 3, 4, and 5. The following properties are used for the Playground Google Drive integration. You can leave them blank if you are not using or testing that feature locally. See here a guide on obtaining the above values from the Google API Console. The frontend can be configured to disable itself (based on user's system time) during certain periods e.g. during e-exams. Note that this is not foolproof, but it can be combined with other strategies e.g. taking down the frontend entirely (but this is needed to counteract the service worker).
REACT_APP_BACKEND_URL: The base URL of the backend. If you are testing with a local backend, the value in .env.example matches the default development configuration of the backend.
REACT_APP_USE_BACKEND: Set to false if not running together with the backend.
REACT_APP_MODULE_BACKEND_URL: The base URL from which Source modules are loaded. (This is a js-slang feature, but of course it has to be configured here.) You can just use the default value in development.
REACT_APP_SHAREDB_BACKEND_URL: The base URL of the ShareDB collaborative editor backend. The protocol must be HTTP or HTTPS (it will automatically be set to WS/WSS as appropriate). Must end in a trailing /.
REACT_APP_URL_SHORTENER_SIGNATURE: The API key for the YOURLS URL shortener.
REACT_APP_URL_SHORTENER_DOMAIN: The base URL of the YOURLS URL shortener. Unless you need to use the shortener locally, you can leave this blank. Otherwise, ask your backend engineer.
REACT_APP_OAUTH2_PROVIDERn: The provider ID of the nth authentication provider. This must match the backend configuration.
REACT_APP_OAUTH2_PROVIDERn_NAME: The name of the nth authentication provider shown on the login screen.
REACT_APP_OAUTH2_PROVIDERn_ENDPOINT: The authentication endpoint of the nth authentication provider.
REACT_APP_GOOGLE_CLIENT_ID: The OAuth2 client ID issued by Google.
REACT_APP_GOOGLE_API_KEY: The Picker API key issued by Google.
REACT_APP_GOOGLE_APP_ID: The project ID of the Google API project.
REACT_APP_DISABLEn_START: The time from which to disable the frontend.
REACT_APP_DISABLEn_END: The time until which to disable the frontend.
REACT_APP_DISABLEn_REASON: Optional. A reason shown for the disablement.
REACT_APP_PLAYGROUND_ONLY: Whether to build the "playground-only" version, which disables the Academy components, so only the Playground is available. This is what we deploy onto GitHub Pages.
REACT_APP_ENABLE_GAME: Whether to enable the game. Off by default.
REACT_APP_ENABLE_ACHIEVEMENTS: Whether to enable the incentives/achievements system. Off by default.
REACT_APP_ENABLE_GITHUB_ASSESSMENTS: Whether to enable the GitHub Assessments feature. Off by default.
There are a few additional environment variables that are used when building and deploying for production.
REACT_APP_VERSION: A version string shown in the console on app launch.
REACT_APP_ENVIRONMENT: An environment string. Currently it is only used to differentiate different deploys in Sentry.
REACT_APP_SENTRY_DSN: The Sentry DSN for error monitoring.
REACT_APP_SW_EXCLUDE_REGEXES: A JSON array of regexes as strings. The service worker will ignore paths matching any of these regexes. This is used in our GitHub Pages deploy so that it does not conflict with the subsites we host on GitHub Pages.
REACT_APP_CADET_LOGGER: Log server URL. To test with cadet-logger on localhost, set it to http://localhost:8001/assessment-logger.
REACT_APP_CADET_LOGGER_INTERVAL: The interval (in ms) that the frontend should upload logs.
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