Operators

The typeof operator in JavaScript is used to determine the data type of a variable or expression. It returns a string that indicates the type of the operand, making it useful for debugging, validation, or writing code that handles different …

The grouping operator (()) in JavaScript is used to control the precedence of expressions. By using parentheses, you can group parts of an expression and force them to be evaluated in a specific order. This operator helps clarify your code …

The comma operator (,) in JavaScript is used to evaluate multiple expressions, and it returns the result of the last expression. While the comma operator may seem uncommon, it can be useful in certain scenarios where you want to execute …

The delete operator in JavaScript is used to remove properties from objects. It can be useful when you want to clean up or remove unwanted properties from an object, but it is not used for deleting variables or array elements …

The yield operator in JavaScript is used in conjunction with generators to control the flow of execution. Generators allow you to pause and resume function execution, which is very useful in cases like asynchronous programming, lazy evaluation, or iterating over …

The spread operator (…) in JavaScript is a powerful and versatile tool that allows you to expand an array, object, or iterable into individual elements or properties. It is commonly used to make working with arrays, objects, and function arguments …

Bitwise operations in JavaScript operate directly on the binary representations of numbers. These operations are performed at the bit level, which makes them useful for tasks like low-level programming, working with binary data, manipulating flags, or performing calculations in certain …

JavaScript introduced logical assignment operators in ES2021 (ES12) to simplify common patterns where logical operators are combined with assignment. These operators combine logical operations (||, &&, ??) with assignment (=) in a compact way. The logical assignment operators include: Logical …

The nullish coalescing operator (??) in JavaScript is used to handle null or undefined values. It provides a way to assign a default value when dealing with variables that might have null or undefined values. This operator is particularly useful …

The exponentiation operator (**) in JavaScript is used to raise a number (the base) to the power of another number (the exponent). This operator was introduced in ECMAScript 2016 (ES7) and provides a more concise and readable way to perform …