JS Tutorial

JavaScript Math.random() 🎲

The Math.random() method returns a pseudo-random floating-point number between 0 (inclusive) and 1 (exclusive).

Math.random(); // Example: 0.423512837
  

🔢 Generate Random Integers

You can use Math.random() with Math.floor() to create random integers in a range.

• 1 to 10: Math.floor(Math.random() * 10) + 1
• 0 to 99: Math.floor(Math.random() * 100)
• Custom range (min to max):
  Math.floor(Math.random() * (max - min + 1)) + min

// Random number between 1 and 10
let num = Math.floor(Math.random() * 10) + 1;
console.log(num);

// Between 50 and 100
let custom = Math.floor(Math.random() * (100 - 50 + 1)) + 50;
console.log(custom);
  

🎮 Live Example: Random Number in Range

🎲 Simulating Dice Roll

// Roll a 6-sided die
let roll = Math.floor(Math.random() * 6) + 1;
console.log("Dice roll:", roll);
  

📌 Use Cases

• Games: Dice, random choices, spawning objects
• Random backgrounds, colors, images
• Shuffling or picking random array items