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* * * JavaScript operators are used to assign values, compare values, perform arithmetic operations, and more. * * * ## JavaScript Arithmetic Operators Arithmetic operators are used to perform operations on two variables or values. Given **y = 5**, the following table explains the use of arithmetic operators: | Operator | Description | Example | y Value | x Value | Online Example | | --- | --- | --- | --- | --- | --- | | + | Addition | x = y + 2 | y = 5 | x = 7 | [Example »](#) | | - | Subtraction | x = y - 2 | y = 5 | x = 3 | [Example »](#) | | * | Multiplication | x = y * 2 | y = 5 | x = 10 | [Example »](#) | | / | Division | x = y / 2 | y = 5 | x = 2.5 | [Example »](#) | | % | Modulus (Remainder) | x = y % 2 | y = 5 | x = 1 | [Example »](#) | | ++ | Increment | x = ++y | y = 6 | x = 6 | [Example »](#) | | x = y++ | y = 6 | x = 5 | [Example »](#) | | -- | Decrement | x = --y | y = 4 | x = 4 | [Example »](#) | | x = y-- | y = 4 | x = 5 | [Example »](#) | For more information on arithmetic operators, you can read our (#). * * * ## JavaScript Assignment Operators Assignment operators are used to assign values to JavaScript variables. Given **x=10** and **y=5**, the following table explains the assignment operators: | Operator | Example | Equivalent | x Value | Online Example | | --- | --- | --- | --- | --- | | = | x = y | x = y | x = 5 | [Example »](#) | | += | x += y | x = x + y | x = 15 | [Example »](#) | | -= | x -= y | x = x - y | x = 5 | [Example »](#) | | *= | x *= y | x = x * y | x = 50 | [Example »](#) | | /= | x /= y | x = x / y | x = 2 | [Example »](#) | | %= | x %= y | x = x % y | x = 0 | [Example »](#) | For more information on assignment operators, you can read our (#). * * * ## JavaScript String Operators The + operator, and the += operator, can be used to concatenate (join) strings. Given **text1 = "Good "** , **text2 = "Morning"**, and **text3 = ""**, the following table explains the use of string operators: | Operator | Example | text1 | text2 | text3 | Online Example | | --- | --- | --- | --- | --- | --- | | + | text3 = text1 + text2 | "Good " | "Morning" | "Good Morning" | [Example »](#) | | += | text1 += text2 | "Good Morning" | "Morning" | "" | [Example »](#) | * * * ## Comparison Operators Comparison operators are used in logical statements to determine equality or difference between variables or values. Given **x=5**, the following table explains the comparison operators: | Operator | Description | Comparison | Result | Online Example | | --- | --- | --- | --- | --- | | == | Equal to | x == 8 | false | [Example »](#) | | x == 5 | true | [Example »](#) | | === | Equal value and equal type (Strict equality) | x === "5" | false | [Example »](#) | | x === 5 | true | [Example »](#) | | != | Not equal | x != 8 | true | [Example »](#) | | !== | Not equal value or not equal type (Strict inequality) | x !== "5" | true | [Example »](#) | | x !== 5 | false | [Example »](#) | | > | Greater than | x > 8 | false | [Example »](#) | | < | Less than | x = | Greater than or equal to | x >= 8 | false | [Example »](#) | | <= | Less than or equal to | x <= 8 | _true_ | [Example »](#) | For more information on comparison operators, you can read our (#). * * * ## Conditional Operator The conditional operator is used to perform a condition-based assignment. Given **x=6 and y=3**, the following table demonstrates the conditional operator: | Syntax | Example | Online Example | | --- | --- | --- | | _variable_ = (_condition_) ? _value1_ : _value2_ | voteable = (age < 18) ? "Too young" : "Old enough"; | [Example »](#) | * * * ## Logical Operators Logical operators determine the logical relationship between variables or values. Given **x=6 and y=3**, the following example demonstrates the use of logical operators: | Operator | Description | Example | | --- | --- | --- | | && | And | (x 1) is true | | || | Or | (x == 5 || y == 5) is false | | ! | Not | !(x == y) is true | * * * ## JavaScript Bitwise Operators Bitwise operators work on 32-bit numbers. Any numeric operand is converted to a 32-bit integer. The result is converted back to a JavaScript number. | Operator | Description | Example | Similar to | Result | Decimal | | --- | --- | --- | --- | --- | --- | | & | AND | x = 5 & 1 | 0101 & 0001 | 0001 | 1 | | | | OR | x = 5 | 1 | 0101 | 0001 | 0101 | 5 | | ~ | NOT | x = ~ 5 | ~0101 | 1010 | -6 | | ^ | XOR | x = 5 ^ 1 | 0101 ^ 0001 | 0100 | 4 | | << | Left shift | x = 5 << 1 | 0101 <> | Right shift | x = 5 >> 1 | 0101 >> 1 | 0010 | 2 |