The list of JavaScript operator types
OPERATOR NAME OPERANDS (SYMBOLS) DESCRIPTION
the unary type INCREMENT (++), DECREMENT (--), ADD TO (+), SUBTRACT FROM (-) These operators may be used to increment / decrement a variable's value, or to add / subtract other values to or from it.
the bitwise type NOT (~), AND (&), OR (|), XOR (^), LEFT-SHIFT (<<), SIGNED RIGHT SHIFT (>>), UNSIGNED RIGHT SHIFT (>>>) The bitwise operators work with numbers on their basic binary levels.
the Boolean type NOT (!), AND (&&), OR (||) The Boolean operators (also called logical) compare two conditions and based on the result direct the flow execution.
the multiplicative type MULTIPLY (*), DIVIDE (/), MODULUS (%) Used to do multiplicative operations with two values. These operators are also called arithmetic operators.
the additive type ADD (+), SUBTRACT (-) Used to do additive operations with two values. These operators are also called arithmetic operators.
the relational type LESS-THAN (<), GREATER-THAN (>), LESS-THAN-OR-EQUAL-TO (<=), GREATER-THAN-OR-EQUAL-TO (>=) Used to do compare two values together and choose the further code flow. These operators are also called comparison operators.
the equality type EQUAL (==), NOT EQUAL (!=), IDENTICALLY EQUAL (===), NOT IDENTICALLY EQUAL (!==) The equality operators check if two values are equal or not equal and choose the further code flow based on the result. These operators are also called comparison operators.
the conditional type EXPRESSION (?), OPERANDS(:) These operators are also called ternary operators and they are used for quick comparisons between of two values and flow execution, all in one statement.
the assignment type EQUALS TO (=), MULTIPLY / ASSIGN (*=), DIVIDE / ASSIGN (/=), MODULUS / ASSIGN (%=), ADD / ASSIGN (+=), SUBTRACT / ASSIGN (-=), LEFT SHIFT / ASSIGN (<<=), SIGNED RIGHT SHIFT / ASSIGN (>>=), UNSIGNED RIGHT SHIFT / ASSIGN (>>>=) The assignment operators are used to assign values to variables and, in combination with other operator types, as shorthand for compound assignments.
the comma type COMMA (,) The comma operator allows the execution of more than one operation in a single statement.