JAVASCRIPT: Programming for beginners( for dummies,step-by-step,tips,apps) by Antony Wilson

Author:Antony Wilson [Wilson, Antony]
Language: eng
Format: azw3
Published: 2017-10-27T04:00:00+00:00

Arithmetic operators

Operator

Description

Example

Remainder (%)

Binary operator. Returns the integer remainder of dividing the two operands.

12 % 5 returns 2.

Increment (++)

Unary operator. Adds one to its operand. If used as a prefix operator (++x), returns the value of its operand after adding one; if used as a postfix operator (x++), returns the value of its operand before adding one.

If x is 3, then ++x sets x to 4 and returns 4, whereas x++ returns 3 and, only then, sets xto 4.

Decrement (--)

Unary operator. Subtracts one from its operand. The return value is analogous to that for the increment operator.

If x is 3, then --x sets x to 2 and returns 2, whereas x-- returns 3 and, only then, sets xto 2.

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