Operators

Operators are the symbols that perform operations on values and variables. JavaScript has a rich set of operators that are essential for performing calculations, making decisions, and controlling the flow of your program. Arithmetic operators are used for mathematical calculations: `+` (addition), `-` (subtraction), `*` (multiplication), `/` (division), `%` (modulo), and `**` (exponentiation). Assignment operators are used to assign values to variables, with `=` being the basic one, and shorthand operators like `+=` and `-=` combining an arithmetic operation with assignment. Comparison operators are crucial for control flow. They compare two values and return a boolean (`true` or `false`). It's vital to understand the difference between `==` (loose equality, which performs type coercion) and `===` (strict equality, which does not). Best practice is to always use `===` to avoid unexpected results from coercion. Logical operators (`&&` AND, `||` OR, `!` NOT) are used to combine or invert boolean expressions, forming the basis of complex conditional logic. Finally, there are other useful operators like the ternary operator (`condition ? exprIfTrue : exprIfFalse`), which is a concise way to write an if-else statement, and the `typeof` operator for checking a variable's data type.