Hello my name is amol sharma or vineet and this is my third part of learn coding with amol and in this part we are going to learn js(javascript)

Hello my name is amol sharma or vineet and this is my third part of learn coding with amol and in this part we are going to learn javascript (js).

Part-3 javascript (js)

🧠 Complete JavaScript Guide

This guide covers the most important JavaScript concepts with examples and copy code buttons.

1. Variables

Used to store data values using let, const, or var.

let name = "Amol";

const age = 13;

var city = "Delhi";

Reusable blocks of code that perform a task.

function greet() {

  alert("Hello, Amol!");

}

greet();

Used to make decisions in code.

let score = 90;

if (score >= 50) {

  console.log("Passed!");

} else {

  console.log("Try again.");

}

Used to repeat a block of code.

for (let i = 1; i <= 5; i++) {

  console.log("Count: " + i);

}

A list of values stored in one variable.

let fruits = ["apple", "banana", "cherry"];

console.log(fruits[1]); // banana

Store data in key–value pairs.

let user = {

  name: "Amol",

  age: 13,

  city: "Delhi"

};

console.log(user.name);

Used to change HTML content with JavaScript.

document.getElementById("myText").innerHTML = "Updated by JS!";

JS can respond to user actions like clicks.

document.getElementById("myBtn").onclick = function() {

  alert("Button clicked!");

};

JavaScript supports basic math functions.

let x = 5 + 3;

let y = 10 - 2;

let z = 4 * 2;

console.log(x, y, z);

Used for user input and messages.

alert("Hello!");

let name = prompt("What is your name?");

let sure = confirm("Are you sure?");

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