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JavaScript Operators

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JavaScript Operators

JavaScript operators are certain symbols (+, -, etc.) that are used to perform mathematical operations, assign values, compare values, and more.

Assignment and Concatenation Operators

In the following example, the = operator is used to assign the value to the name variable and the + operator is used to concatenate the variable and the string in the document.write() method

Example

HTML Online Editor
<!DOCTYPE html> <html> <body> <script> var name = "Steve Smith"; document.write("His name is "+ name); </script> </body> </html>

Dot Operator

In the following example, the . operator is used to get the specific property from the specified object.

Example

HTML Online Editor
<!DOCTYPE html> <html> <body> <script> var bike = { company: "Honda", model: "CBR 1000RR", color: "Red" }; document.write("I like "+ bike.company); </script> </body> </html>

Types of Operator

The following are the types of operators available in javascript

Types of OperatorSymbolic Representation
Arithmetic Operators +, -, *, **, /, %, ++, --
Comparison Operators ==, ===, !=, !==, >, <, <=, >=
Logical Operators &&, ||, !
Bitwise Operators &, |, ~, ^, <<, >>, >>>
Conditional Operator ?:
Comma Operator ,
typeof Operator typeof
delete Operator delete
in Operator in
instanceof Operator instanceof

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