Basics

Node.js Operators

Node.js operators include arithmetic and logical extending JavaScript.

Overview of Node.js Operators

In Node.js, operators are special symbols or keywords that are used to perform operations on operands. They are essential for manipulating data and variables. Node.js supports all the operators available in JavaScript, which include arithmetic, comparison, logical, assignment, and more. Understanding these operators is crucial for effective coding in Node.js.

Arithmetic Operators

Arithmetic operators are used to perform mathematical calculations. They operate on numerical values and return a single numerical value. Here are some common arithmetic operators in Node.js:

Addition (+): Adds two operands.
Subtraction (-): Subtracts the second operand from the first.
Multiplication (*): Multiplies two operands.
Division (/): Divides the first operand by the second.
Modulus (%): Returns the remainder of a division.

Comparison Operators

Comparison operators are used to compare two values. They return a Boolean value (true or false) based on the comparison. Some key comparison operators include:

Equal (==): Checks if the values of two operands are equal.
Strict Equal (===): Checks if the values and types of two operands are equal.
Not Equal (!=): Checks if the values of two operands are not equal.
Strict Not Equal (!==): Checks if the values and types of two operands are not equal.
Greater Than (>): Checks if the left operand is greater than the right.
Less Than (<): Checks if the left operand is less than the right.

Logical Operators

Logical operators are used to combine multiple Boolean expressions or values and return a Boolean result. The main logical operators in Node.js include:

AND (&&): Returns true if both operands are true.
OR (||): Returns true if at least one of the operands is true.
NOT (!): Reverses the Boolean value of the operand.

Assignment Operators

Assignment operators are used to assign values to variables. The most common assignment operator is the equal sign (=), but there are also compound assignment operators that perform an operation and assign the result. Some of these include:

Assignment (=): Assigns the right operand's value to the left operand.
Addition Assignment (+=): Adds the right operand to the left operand and assigns the result.
Subtraction Assignment (-=): Subtracts the right operand from the left operand and assigns the result.

Conclusion

Node.js operators are fundamental building blocks for programming in JavaScript. They allow you to perform a variety of operations, from mathematical computations to logic testing. Mastering these operators will enable you to write more efficient and effective code in Node.js.

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