JavaScript Operators: The Basics You Need to Know
A beginner-friendly guide to the operators JavaScript uses for math, comparison, logic, and assignment
Introduction
JavaScript mein sirf values store karna enough nahi hota.
Humein un values ke saath kaam bhi karna hota hai.
For example:
do numbers add karna
do values compare karna
true/false check karna
existing value update karna
Ye sab operators ki help se hota hai.
Simple words mein:
operators values ke saath kaam karne ke tools hote hain
What Operators Are
Operator ek symbol hota hai jo values par koi action perform karta hai.
Example:
5 + 3
Yahan + operator hai.
Ye sirf JavaScript math tak limited nahi hai.
Operators comparison, logic, aur assignment ke liye bhi use hote hain.
Arithmetic Operators
Arithmetic operators simple math operations ke liye use hote hain.
Main ones:
+-*/%
Example:
let a = 10;
let b = 3;
console.log(a + b);
console.log(a - b);
console.log(a * b);
console.log(a / b);
console.log(a % b);
Ye beginners ke liye sabse easy operators hote hain samajhne ke liye.
Comparison Operators
Comparison operators do values ko compare karte hain aur usually boolean result dete hain.
Important comparison operators:
=====!=><
Example:
console.log(10 > 5);
console.log(10 < 5);
console.log(10 == "10");
console.log(10 === "10");
== vs ===
Ye beginner ke liye bahut important difference hai.
==
Loose comparison karta hai.
console.log(10 == "10"); // true
===
Strict comparison karta hai.
console.log(10 === "10"); // false
Simple memory trick:
==value compare karta hai loosely===value aur type dono compare karta hai
Beginners ke liye usually === zyada safe hota hai.
Logical Operators
Logical operators conditions combine karne ke liye use hote hain.
Main logical operators:
&&||!
AND &&
let isLoggedIn = true;
let isPaidUser = true;
console.log(isLoggedIn && isPaidUser);
OR ||
let hasCoupon = false;
let isMember = true;
console.log(hasCoupon || isMember);
NOT !
let isStudent = false;
console.log(!isStudent);
Assignment Operators
Assignment operators values assign ya update karne ke liye use hote hain.
Examples:
=+=-=
let score = 10;
score += 5;
console.log(score);
score -= 2;
console.log(score);
Ye everyday coding mein kaafi common hote hain.
Everyday Practical Examples
Arithmetic:
let price = 100;
let tax = 18;
console.log(price + tax);
Comparison:
let age = 18;
console.log(age >= 18);
Logical:
let isLoggedIn = true;
let hasAccess = false;
console.log(isLoggedIn && hasAccess);
Assignment:
let count = 1;
count += 1;
console.log(count);
A Small Practice Assignment
Try this:
let a = 12;
let b = 4;
console.log(a + b);
console.log(a - b);
console.log(a * b);
console.log(a / b);
console.log(a == "12");
console.log(a === "12");
console.log(a > b && b < a);
Isse arithmetic, comparison, aur logical operators ka basic feel aa jaata hai.
Summary
operators values ke saath action perform karte hain
arithmetic operators math ke liye use hote hain
comparison operators values compare karte hain
logical operators conditions combine karte hain
assignment operators values assign aur update karte hain
==aur===ka difference samajhna very important hai
Final Thought
Operators chhote symbols lag sakte hain, but everyday JavaScript logic inhi par depend karta hai.
Ek baar inka basic behavior clear ho gaya, toh conditions aur expressions samajhna kaafi easier lagta hai.
