SQL: How to Select Top N Records

/src
  /locales
    en.json
    fr.json
  /pages
    Home.js
    About.js
  i18n.js
  App.js
  routes.js

Create i18n.js:

°C vs °F, km vs miles, 12h vs 24h clock.

• Avoid idioms/slang in content

npm install i18next-icu

Update i18n.js:

Install Vue + Webpack in the analytics-app:

npm init vue@latest
cd analytics-app
npm install

Zustand is a small, fast, and scalable state management solution for React applications. Developed by the creators of Jotai and React-spring, Zustand aims to provide a minimalistic API based on hooks, eliminating the need for boilerplate code and context providers.

Key Features:

   const increment = useCallback(() => setCount(c => c + 1), []);

Implementing these practices ensures that only components dependent on specific context values re-render when those values change.([Medium][7])

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console.log(5 == "5"); // true (type coercion)
console.log(5 === "5"); // false (no type coercion)
console.log(10 > 7); // true
console.log(4 <= 4); // true

Logical operators combine multiple conditions or values.

   const PI = 3.1416;
   let radius = 5;
   let area = PI * radius ** 2;
   console.log("Area:", area); // Area: 78.54

   let number = 7;
   if (number % 2 === 0) {
     console.log(number + " is even.");
   } else {
     console.log(number + " is odd."); // Outputs: 7 is odd.
   }

    console.log(person["age"]); // 25

• Adding/Updating Properties:

Example:

let name = "Alice";
let age = 25;
let isStudent = true;

console.log(typeof name); // string
console.log(typeof age); // number
console.log(typeof isStudent); // boolean

Variables can be declared without assigning a value. Uninitialized variables are undefined.

Example:

• What happens?
• The console.log() function outputs text to the console.
• "Hello, World!" is a string (text) enclosed in double quotes.

• In a browser:
• Open the console (Ctrl+Shift+J or Cmd+Option+J) and type the code.
• In Node.js:
• Save the code in a file (e.g., hello.js) and run it using:

     Running JavaScript with Node.js!

• Example of reading a file:

• Use the clear() function or click the "Clear Console" button.

• Arrow keys: Navigate through previous commands.
• Shift+Enter: Write multi-line code.

• Go to File > Preferences > Settings and search for "Auto Save."
• Set it to afterDelay for smoother development.

• Open VS Code and create a file with the .js extension (e.g., test.js).

• JavaScript is used in IoT devices for controlling hardware and sensors.
• Example: Node.js-based IoT applications.

• Libraries like Three.js and Babylon.js enable building browser-based games.
• Example: Interactive 3D experiences.

• JavaScript powers not only browsers but also servers (Node.js), mobile apps, and even IoT devices.
• Widely used frameworks like React, Angular, and Vue have further cemented its role in modern development.

• Interpreted: Runs directly in the browser without requiring compilation.
• Versatile: Works for front-end, back-end, and hybrid development.
• Event-Driven: Handles user interactions dynamically.
• Cross-Platform: Runs on any device with a browser.

document.getElementById("start").addEventListener("click", () => {
  chrome.runtime.sendMessage({ action: "start" }, (response) => {
    if (chrome.runtime.lastError) {
      console.error("[popup.js] Error:", chrome.runtime.lastError.message);
      document.getElementById("status").innerText = "Error: Could not connect to background script.";
      return;
    }
    console.log("[popup.js] Response:", response);
    document.getElementById("status").innerText = `Status: ${response.status}`;
  });
});

document.getElementById("stop").addEventListener("click", () => {
  chrome.runtime.sendMessage({ action: "stop" }, (response) => {
    if (chrome.runtime.lastError) {
      console.error("[popup.js] Error:", chrome.runtime.lastError.message);
      document.getElementById("status").innerText = "Error: Could not connect to background script.";
      return;
    }
    console.log("[popup.js] Response:", response);
    document.getElementById("status").innerText = `Status: ${response.status}`;
  });
});

If everything is set up correctly, you should see your extension in the list with its name and icon.

Selectors are functions that extract and compute derived state. Using reselect, you can optimize them with memoization to prevent unnecessary recalculations.

Install reselect: