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Unary Operators

Explore how unary operators function in JavaScript including unary plus, minus, increment, and decrement. Understand their behavior on numbers, strings, booleans, and objects with examples. Learn the differences between prefix and postfix usage and how JavaScript handles type conversion when applying these operators.

Operators

Every programming language needs expressions to describe calculations, algorithms, and even more complex concepts. Most languages use unary, binary, and sometimes ternary operators as basic building blocks of expressions.

It is the same for JavaScript, it uses operators to manipulate data values.


If you have already used curly-brace languages such as C, C++, Java, or C#, you will find the JavaScript operators familiar.


However, you must be more considerate with JavaScript operators, for the loosely-typed nature of the language delivers a few ...