Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

Jul 8, 2025 · This chapter describes JavaScript's expressions and operators, including assignment, comparison, arithmetic, bitwise, logical, string, ternary and more.

May 22, 2026 · This chapter documents all the JavaScript language operators, expressions and keywords.

Comparison operators are used in logical statements to determine equality or difference between variables or values. Given that x = 5, the table below explains the comparison operators:

May 5, 2026 · JavaScript Chaining Operator (?.) The optional chaining operator allows safe access to deeply nested properties without throwing errors if the property doesn’t exist.

The !! operator reassures the lint tool that what you wrote is what you meant: do this operation, then take the truth value of the result. A third use is to produce logical XOR and logical XNOR.

Feb 3, 2021 · The conditional or question mark operator, represented by a ?, is one of the most powerful features in JavaScript. The ? operator is used in conditional statements, and when paired with a :, …

Operators in JavaScript are special symbols that let you perform operations on values or variables. You use them to calculate, compare, assign, or manipulate data in different ways within your program.

What is an Operator? In JavaScript, an operator is a symbol that performs an operation on one or more operands, such as variables or values, and returns a result.

JavaScript operators are used to assign and compare values, arithmetic operations, and more. This chapter describes all the needed Javascript operators.