Operators:
JavaScript operators are symbols or keywords that perform operations on values (operands).
Examples:
- Arithmetic Operators: Used to perform mathematical calculations.
let a = 15;
let b = 4;
console.log(a + b); // 19
console.log(a - b); // 11
console.log(a * b); // 60
console.log(a / b); // 3.75
console.log(a % b); // 3
console.log(a ** b); // 50625
String Addition:
console.log("Hello" + " World");
// Hello World
console.log("10" + 5);
// 105
console.log(10 + "5");
// 105
- Assignment Operators Assign values to variables. (=,+=,-=,=,/=,%=,*=)
let x = 10;
x += 5;
console.log(x); //15
x *= 2;
console.log(x); //30
x -= 10;
console.log(x); //20
- Comparison Operators Return true or false (==,===,!=,<=,>=,>,<)
console.log(5 > 3); // true
console.log(5 < 3); // false
console.log(5 >= 5); // true
console.log(5 <= 4); // false
console.log(5 != "5"); // false
console.log(5 !== "5"); // true
Logical Operators
Used with boolean values.
(AND,||,!)
And:both should be true
Or:Atleast One true
Not:Opposite !true means FalseIncrement and Decrement Operators
Increment (++)
Adds 1.
Pre Increment:
let x = 5;
console.log(++x); // 6 first increament
Post Increment
let x = 5;
console.log(x++);//5 use and then increase
console.log(x);//6 increased
Decrement (--) Same as Increment
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