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- Arithmetic Operators
- Comparison Operators
- Logical Operators
- Assignment Operators
- Conditional Operators
Arithmetic operators are used to perform mathematical operations between numeric operands
+ Adds two numeric operands. - Subtract right operand from left operand * Multiply two numeric operands. / Divide left operand by right operand. % Modulus operator. Returns remainder of two operands. ++ Increment operator. Increase operand value by one. -- Decrement operator. Decrease value by one.
- + operator performs concatenation operation when one of the operands is of string type.
Comparison Operators are those operators that compare two operands and return Boolean value true or false.
== Compares the equality of two operands without considering type. === Compares equality of two operands with type. != Compares inequality of two operands. > Checks whether left side value is greater than right side value. If yes then returns true otherwise false. < Checks whether left operand is less than right operand. If yes then returns true otherwise false. >= Checks whether left operand is greater than or equal to right operand. If yes then returns true otherwise false. <= Checks whether left operand is less than or equal to right operand. If yes then returns true otherwise false.
&& && is known as AND operator. It checks whether two operands are non-zero (0, false, undefined, null or "" are considered as zero), if yes then returns 1 otherwise 0. || || is known as OR operator. It checks whether any one of the two operands is non-zero (0, false, undefined, null or "" is considered as zero). ! ! is known as NOT operator. It reverses the boolean result of the operand (or condition)
= Assigns right operand value to left operand. += Sums up left and right operand values and assign the result to the left operand. -= Subtract right operand value from left operand value and assign the result to the left operand. *= Multiply left and right operand values and assign the result to the left operand. /= Divide left operand value by right operand value and assign the result to the left operand. %= Get the modulus of left operand divide by right operand and assign resulted modulus to the left operand.
Ternary operator starts with conditional expression followed by ? operator. Second part ( after ? and before : operator) will be executed if condition turns out to be true. If condition becomes false then third part (after :) will be executed.
<some_variable> = <some_condition> ? <some_value_based_on_some_expression> : <some_other_value_based_on_some_expression>;
So this is it for this one.
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