JavaScript operators are symbols or words that are used to perform operations on values. These operations include mathematical calculations, assignment, comparison, and logical operations. Some common JavaScript operators include:
Arithmetic operators :
These operators perform mathematical calculations on numerical values. Examples include + (addition), ** (subtraction), ** (multiplication), / (division), % (modulus) and ++ (increment).
let x = 5;
let y = 2;
let result = x + y; // 7
Assignment operators :
These operators assign a value to a variable. The most common assignment operator is =. Other examples include +=, -=, *=, /=, and %=.
let x = 5;
x += 2; // x is now 7
Comparison operators :
These operators compare two values and return a Boolean value (true or false). Examples include == (equal to), != (not equal to), > (greater than), < (less than), >=(greater than or equal to), and <=(less than or equal to).
let x = 5;
let y = 2;
let result = x > y; // true
Logical operators :
These operators are used to combine multiple conditions and return a Boolean value. Examples include && (and), || (or), and ! (not).
let x = 5;
let y = 2;
let result = x > 2 && y < 10; // true
ternary operator :
It is a shorthand way of writing an if-else statement. It takes three operands, a condition, a statement to execute if the condition is true and a statement to execute if the condition is false.
let x = 5;
let y = 2;
let result = x > 2 ? 'Greater' : 'Lesser'; // Greater
typeof operator :
It is used to check the data type of a value. It returns a string indicating the type of the operand.
let x = 5;
let result = typeof x; // number
These are just some of the most commonly used operators in JavaScript. By using these operators, you can perform various operations and calculations in your JavaScript code.
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