My test

2-how-node-works/starter/.vscode/c_cpp_properties.json

@@ -0,0 +1,18 @@
+{
+  "configurations": [
+    {
+      "name": "windows-gcc-x86",
+      "includePath": [
+        "${workspaceFolder}/**"
+      ],
+      "compilerPath": "C:/MinGW/bin/gcc.exe",
+      "cStandard": "${default}",
+      "cppStandard": "${default}",
+      "intelliSenseMode": "windows-gcc-x86",
+      "compilerArgs": [
+        ""
+      ]
+    }
+  ],
+  "version": 4
+}

2-how-node-works/starter/.vscode/launch.json

@@ -0,0 +1,24 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "C/C++ Runner: Debug Session",
+      "type": "cppdbg",
+      "request": "launch",
+      "args": [],
+      "stopAtEntry": false,
+      "externalConsole": true,
+      "cwd": "c:/Users/Esdeath/Documents/git--Jonas/complete-node-bootcamp/2-how-node-works/starter",
+      "program": "c:/Users/Esdeath/Documents/git--Jonas/complete-node-bootcamp/2-how-node-works/starter/build/Debug/outDebug",
+      "MIMode": "gdb",
+      "miDebuggerPath": "gdb",
+      "setupCommands": [
+        {
+          "description": "Enable pretty-printing for gdb",
+          "text": "-enable-pretty-printing",
+          "ignoreFailures": true
+        }
+      ]
+    }
+  ]
+}

2-how-node-works/starter/.vscode/settings.json

@@ -0,0 +1,60 @@
+{
+  "C_Cpp_Runner.cCompilerPath": "gcc",
+  "C_Cpp_Runner.cppCompilerPath": "g++",
+  "C_Cpp_Runner.debuggerPath": "gdb",
+  "C_Cpp_Runner.cStandard": "",
+  "C_Cpp_Runner.cppStandard": "",
+  "C_Cpp_Runner.msvcBatchPath": "C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Auxiliary/Build/vcvarsall.bat",
+  "C_Cpp_Runner.useMsvc": false,
+  "C_Cpp_Runner.warnings": [
+    "-Wall",
+    "-Wextra",
+    "-Wpedantic",
+    "-Wshadow",
+    "-Wformat=2",
+    "-Wcast-align",
+    "-Wconversion",
+    "-Wsign-conversion",
+    "-Wnull-dereference"
+  ],
+  "C_Cpp_Runner.msvcWarnings": [
+    "/W4",
+    "/permissive-",
+    "/w14242",
+    "/w14287",
+    "/w14296",
+    "/w14311",
+    "/w14826",
+    "/w44062",
+    "/w44242",
+    "/w14905",
+    "/w14906",
+    "/w14263",
+    "/w44265",
+    "/w14928"
+  ],
+  "C_Cpp_Runner.enableWarnings": true,
+  "C_Cpp_Runner.warningsAsError": false,
+  "C_Cpp_Runner.compilerArgs": [],
+  "C_Cpp_Runner.linkerArgs": [],
+  "C_Cpp_Runner.includePaths": [],
+  "C_Cpp_Runner.includeSearch": ["*", "**/*"],
+  "C_Cpp_Runner.excludeSearch": [
+    "**/build",
+    "**/build/**",
+    "**/.*",
+    "**/.*/**",
+    "**/.vscode",
+    "**/.vscode/**"
+  ],
+  "C_Cpp_Runner.useAddressSanitizer": false,
+  "C_Cpp_Runner.useUndefinedSanitizer": false,
+  "C_Cpp_Runner.useLeakSanitizer": false,
+  "C_Cpp_Runner.showCompilationTime": false,
+  "C_Cpp_Runner.useLinkTimeOptimization": false,
+  "C_Cpp_Runner.msvcSecureNoWarnings": false,
+  "files.associations": {
+    "*.embeddedhtml": "html",
+    "SHUBHAM4.C": "cpp"
+  }
+}

2-how-node-works/starter/event-loop.js

@@ -0,0 +1,44 @@
+const EventEmitter = require("events");
+const http = require("http");
+class Sales extends EventEmitter {
+  constructor() {
+    super();
+  }
+}
+
+const myEmitter = new EventEmitter();
+
+myEmitter.on("newSales", () => {
+  console.log("There as a slae");
+});
+
+myEmitter.on("newSales", () => {
+  console.log("Costumere");
+});
+
+myEmitter.on("newSales", (stock) => {
+  console.log(`There aer now ${stock} items left in stock.`);
+});
+
+myEmitter.emit("newSales", 9);
+
+////////////////////
+
+const server = http.createServer();
+
+server.on("request", (req, res) => {
+  console.log("Request revievd");
+  console.log(req.url);
+  res.end("Request received");
+});
+
+server.on("request", (req, res) => {
+  console.log("Another requst 😊");
+});
+server.on("close", () => {
+  console.log("Server closed");
+});
+
+server.listen(8000, "127.0.0.1", () => {
+  console.log("Waiting for requesetes...");
+});

2-how-node-works/starter/event.js

@@ -0,0 +1,58 @@
+const fs = require("fs");
+const crypto = require("crypto");
+
+const start = Date.now();
+
+process.env.UV_THREADPOOL_SIZE = 4;
+
+setTimeout(() => console.log("Timer 1 finished"), 0);
+setImmediate(() => console.log("Immediate 1 finished"));
+
+console.log("Hello from the top-level code");
+
+fs.readFile("style.css", () => {
+  console.log("I/O finished");
+
+  console.log("--------------------");
+
+  setTimeout(() => console.log("Timer 2 finished"), 0);
+  setTimeout(() => console.log("Timer 3 finished"), 3000);
+
+  setImmediate(() => console.log("Immediate 2 finished"));
+  process.nextTick(() => console.log("Process.nextTick"));
+
+  crypto.pbkdf2Sync("password", "salt", 100000, 1024, "sha512");
+  console.log(`${Date.now() - start} - Password encrypted`);
+  crypto.pbkdf2("password", "salt", 100000, 1024, "sha512", () => {
+    console.log(`${Date.now() - start} - Password encrypted`);
+  });
+  crypto.pbkdf2("password", "salt", 100000, 1024, "sha512", () => {
+    console.log(`${Date.now() - start} - Password encrypted`);
+  });
+});
+ //////////////////////////////
+ const EventEmitter = require("events");
+const http = require("http");
+
+// Custom EventEmitter class
+class Sales extends EventEmitter {
+  constructor() {
+    super();
+  }
+}
+
+const myEmitter = new EventEmitter();
+
+myEmitter.on("newSales", () => {
+  console.log("There was a sale");
+});
+
+myEmitter.on("newSales", () => {
+  console.log("Customer");
+});
+
+myEmitter.on("newSales", (stock) => {
+  console.log(`There are now ${stock} items left in stock.`);
+});
+
+myEmitter.emit("newSales", 9);

2-how-node-works/starter/modules.js

@@ -0,0 +1,17 @@
+// console.log(arguments);
+// console.log(require("module").wrapper);
+
+// module.export
+const C = require("./test-module-1");
+const clac1 = new C();
+console.log(clac1.add(4, 6));
+
+//export
+// const calc2 = require("./text-module-2");
+const { add, multiply } = require("./test_module-2");
+console.log(multiply(2, 5));
+
+//caching
+require("./test_module-3")();
+require("./test_module-3")();
+require("./test_module-3")();

2-how-node-works/starter/stream.js

@@ -0,0 +1,33 @@
+const fs = require("fs");
+const server = require("http").createServer();
+
+server.on("request", (req, res) => {
+  // Solution 1
+  //   fs.readFile("test-file.txt", (err, data) => {
+  //     if (err) console.log(err);
+  //     res.end(data);
+  //   });
+
+  // Solution 2
+  //   const readable = fs.createReadStream("tests-file.txt");
+  //   readable.on("data", (chunk) => {
+  //     res.write(chunk);
+  //   });
+  //   readable.on("end", () => {
+  //     res.end();
+  //   });
+  //   readable.on("error", (err) => {
+  //     console.log(err);
+  //     res.statusCode = 500;
+  //     res.end("File not found!");
+  //   });
+
+  // Solution 3
+  const readable = fs.createReadStream("test-file.txt");
+    readable.pipe(res);
+
+});
+
+server.listen(8000, "127.0.0.1", () => {
+  console.log("Listening...");
+});

2-how-node-works/starter/tempCodeRunnerFile.js

@@ -0,0 +1 @@
+test-module-1

2-how-node-works/starter/test-module-1.js

@@ -0,0 +1,23 @@
+// class Calculator {
+//   add(a, b) {
+//     return a + b;
+//   }
+//   multiply(a, b) {
+//     return a * b;
+//   }
+//   divide(a, b) {
+//     return a / b;
+//   }
+// }
+
+module.exports = class {
+  add(a, b) {
+    return a + b;
+  }
+  multiply(a, b) {
+    return a * b;
+  }
+  divide(a, b) {
+    return a / b;
+  }
+};

2-how-node-works/starter/test_module-2.js

@@ -0,0 +1,3 @@
+exports.add = (a, b) => a + b;
+exports.multiply = (a, b) => a * b;
+exports.divide = (a, b) => a / b;

2-how-node-works/starter/test_module-3.js

@@ -0,0 +1,3 @@
+console.log("Hello from the module");
+
+module.exports = () => console.log("Log this beautiful text 😗");

3-asynchronous-JS/final/dog-img.txt

@@ -1,3 +1,3 @@
-https://images.dog.ceo/breeds/labrador/n02099712_7411.jpg
-https://images.dog.ceo/breeds/labrador/n02099712_6644.jpg
-https://images.dog.ceo/breeds/labrador/n02099712_4705.jpg
+https://images.dog.ceo/breeds/labrador/n02099712_7605.jpg
+https://images.dog.ceo/breeds/labrador/n02099712_7608.jpg
+https://images.dog.ceo/breeds/labrador/n02099712_7866.jpg

3-asynchronous-JS/index.js

@@ -0,0 +1,17 @@
+const fs = require("fs");
+const superganet = require("superagent");
+
+fs.readFile(`${__dirname}/dog.txt`, (err, data) => {
+  console.log(`Bread: ${data}`);
+  superganet
+    .get(`https://dog.ceo/api/breeds${data}/images/random`)
+    .end((err, res) => {
+      if (err) return console.log(err.message);
+      console.log(res.body.message);
+
+      fs.writeFile("dog-image.txt", res.body.message, (err) => {
+        if (err) return console.log(err.message);
+        console.log("Random dog image saved to file!");
+      });
+    });
+});