Merge pull request #278 from codecrafters-io/add-stage-2-solutions

Add stage 2 solutions for js and ts

solutions/javascript/02-rg2/code/.codecrafters/compile.sh

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+#!/bin/sh
+#
+# This script is used to compile your program on CodeCrafters
+#
+# This runs before .codecrafters/run.sh
+#
+# Learn more: https://codecrafters.io/program-interface
+
+set -e # Exit on failure
+
+# (This file is empty since JavaScript programs don't use a compile step)

solutions/javascript/02-rg2/code/.codecrafters/run.sh

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+#!/bin/sh
+#
+# This script is used to run your program on CodeCrafters
+#
+# This runs after .codecrafters/compile.sh
+#
+# Learn more: https://codecrafters.io/program-interface
+
+set -e # Exit on failure
+
+exec node app/main.js "$@"

solutions/javascript/02-rg2/code/.gitattributes

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+* text=auto

solutions/javascript/02-rg2/code/.gitignore

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+node_modules/

solutions/javascript/02-rg2/code/README.md

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+![progress-banner](https://codecrafters.io/landing/images/default_progress_banners/redis.png)
+
+This is a starting point for JavaScript solutions to the
+["Build Your Own Redis" Challenge](https://codecrafters.io/challenges/redis).
+
+In this challenge, you'll build a toy Redis clone that's capable of handling
+basic commands like `PING`, `SET` and `GET`. Along the way we'll learn about
+event loops, the Redis protocol and more.
+
+**Note**: If you're viewing this repo on GitHub, head over to
+[codecrafters.io](https://codecrafters.io) to try the challenge.
+
+# Passing the first stage
+
+The entry point for your Redis implementation is in `app/main.js`. Study and
+uncomment the relevant code, and push your changes to pass the first stage:
+
+```sh
+git commit -am "pass 1st stage" # any msg
+git push origin master
+```
+
+That's all!
+
+# Stage 2 & beyond
+
+Note: This section is for stages 2 and beyond.
+
+1. Ensure you have `node (21)` installed locally
+1. Run `./your_program.sh` to run your Redis server, which is implemented in
+   `app/main.js`.
+1. Commit your changes and run `git push origin master` to submit your solution
+   to CodeCrafters. Test output will be streamed to your terminal.

solutions/javascript/02-rg2/code/app/main.js

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+const net = require("net");
+
+const server = net.createServer((connection) => {
+  // Handle connection
+  connection.write(`+PONG\r\n`);
+});
+
+server.listen(6379, "127.0.0.1");

solutions/javascript/02-rg2/code/codecrafters.yml

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+# Set this to true if you want debug logs.
+#
+# These can be VERY verbose, so we suggest turning them off
+# unless you really need them.
+debug: false
+
+# Use this to change the JavaScript version used to run your code
+# on Codecrafters.
+#
+# Available versions: nodejs-21
+language_pack: nodejs-21

solutions/javascript/02-rg2/code/package.json

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+{
+  "name": "@codecrafters/redis",
+  "version": "1.0.0",
+  "dependencies": {}
+}

solutions/javascript/02-rg2/code/your_program.sh

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+#!/bin/sh
+#
+# Use this script to run your program LOCALLY.
+#
+# Note: Changing this script WILL NOT affect how CodeCrafters runs your program.
+#
+# Learn more: https://codecrafters.io/program-interface
+
+set -e # Exit early if any commands fail
+
+# Copied from .codecrafters/run.sh
+#
+# - Edit this to change how your program runs locally
+# - Edit .codecrafters/run.sh to change how your program runs remotely
+exec node app/main.js "$@"

solutions/javascript/02-rg2/diff/app/main.js.diff

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+@@ -1,7 +1,8 @@
+ const net = require("net");
+
+ const server = net.createServer((connection) => {
+   // Handle connection
++  connection.write(`+PONG\r\n`);
+ });
+
+ server.listen(6379, "127.0.0.1");

solutions/javascript/02-rg2/explanation.md

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+The entry point for your Redis implementation is in `app/main.js`.
+
+Study and uncomment the relevant code: 
+
+```javascript
+// Uncomment this block to pass the first stage
+const server = net.createServer((connection) => {
+  // Handle connection
+});
+
+server.listen(6379, "127.0.0.1");
+```
+
+Push your changes to pass the first stage:
+
+```
+git add .
+git commit -m "pass 1st stage" # any msg
+git push origin master
+```

solutions/typescript/02-rg2/code/.codecrafters/compile.sh

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+#!/bin/sh
+#
+# This script is used to compile your program on CodeCrafters
+#
+# This runs before .codecrafters/run.sh
+#
+# Learn more: https://codecrafters.io/program-interface
+
+set -e # Exit on failure
+
+# (This file is empty since TypeScript programs don't use a compile step)

solutions/typescript/02-rg2/code/.codecrafters/run.sh

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+#!/bin/sh
+#
+# This script is used to run your program on CodeCrafters
+#
+# This runs after .codecrafters/compile.sh
+#
+# Learn more: https://codecrafters.io/program-interface
+
+set -e # Exit on failure
+
+exec bun run $(dirname $0)/app/main.ts "$@"

solutions/typescript/02-rg2/code/.gitattributes

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+* text=auto

solutions/typescript/02-rg2/code/.gitignore

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+node_modules/

solutions/typescript/02-rg2/code/README.md

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+![progress-banner](https://codecrafters.io/landing/images/default_progress_banners/redis.png)
+
+This is a starting point for TypeScript solutions to the
+["Build Your Own Redis" Challenge](https://codecrafters.io/challenges/redis).
+
+In this challenge, you'll build a toy Redis clone that's capable of handling
+basic commands like `PING`, `SET` and `GET`. Along the way we'll learn about
+event loops, the Redis protocol and more.
+
+**Note**: If you're viewing this repo on GitHub, head over to
+[codecrafters.io](https://codecrafters.io) to try the challenge.
+
+# Passing the first stage
+
+The entry point for your Redis implementation is in `app/main.ts`. Study and
+uncomment the relevant code, and push your changes to pass the first stage:
+
+```sh
+git commit -am "pass 1st stage" # any msg
+git push origin master
+```
+
+That's all!
+
+# Stage 2 & beyond
+
+Note: This section is for stages 2 and beyond.
+
+1. Ensure you have `bun (1.1)` installed locally
+1. Run `./your_program.sh` to run your Redis server, which is implemented in
+   `app/main.ts`.
+1. Commit your changes and run `git push origin master` to submit your solution
+   to CodeCrafters. Test output will be streamed to your terminal.

solutions/typescript/02-rg2/code/app/main.ts

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+import * as net from "net";
+
+const server: net.Server = net.createServer((connection: net.Socket) => {
+  // Handle connection
+  connection.write(`+PONG\r\n`);
+});
+
+server.listen(6379, "127.0.0.1");

solutions/typescript/02-rg2/code/codecrafters.yml

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+# Set this to true if you want debug logs.
+#
+# These can be VERY verbose, so we suggest turning them off
+# unless you really need them.
+debug: false
+
+# Use this to change the TypeScript version used to run your code
+# on Codecrafters.
+#
+# Available versions: bun-1.1
+language_pack: bun-1.1

solutions/typescript/02-rg2/code/package.json

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+{
+  "name": "@codecrafters/redis",
+  "description": "Build your own Redis challenge, from CodeCrafters",
+  "type": "module",
+  "scripts": {
+    "dev": "bun run app/main.ts"
+  },
+  "devDependencies": {
+    "@types/bun": "latest"
+  }
+}

solutions/typescript/02-rg2/code/tsconfig.json

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+{
+  "compilerOptions": {
+    // Enable latest features
+    "lib": ["ESNext", "DOM"],
+    "target": "ESNext",
+    "module": "ESNext",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    // Bundler mode
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+
+    // Best practices
+    "strict": true,
+    "skipLibCheck": true,
+    "noFallthroughCasesInSwitch": true,
+
+    // Some stricter flags (disabled by default)
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    "noPropertyAccessFromIndexSignature": false
+  }
+}

solutions/typescript/02-rg2/code/your_program.sh

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+#!/bin/sh
+#
+# Use this script to run your program LOCALLY.
+#
+# Note: Changing this script WILL NOT affect how CodeCrafters runs your program.
+#
+# Learn more: https://codecrafters.io/program-interface
+
+set -e # Exit early if any commands fail
+
+# Copied from .codecrafters/run.sh
+#
+# - Edit this to change how your program runs locally
+# - Edit .codecrafters/run.sh to change how your program runs remotely
+exec bun run $(dirname $0)/app/main.ts "$@"

solutions/typescript/02-rg2/diff/app/main.ts.diff

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+@@ -1,7 +1,8 @@
+ import * as net from "net";
+
+ const server: net.Server = net.createServer((connection: net.Socket) => {
+   // Handle connection
++  connection.write(`+PONG\r\n`);
+ });
+
+ server.listen(6379, "127.0.0.1");

solutions/typescript/02-rg2/explanation.md

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+The entry point for your Redis implementation is in `app/main.ts`.
+
+Study and uncomment the relevant code: 
+
+```typescript
+// Uncomment this block to pass the first stage
+const server: net.Server = net.createServer((connection: net.Socket) => {
+  // Handle connection
+});
+
+server.listen(6379, "127.0.0.1");
+```
+
+Push your changes to pass the first stage:
+
+```
+git add .
+git commit -m "pass 1st stage" # any msg
+git push origin master
+```