Arithmetic Operations
Question: What arithmetic operations are supported in JavaScript?
Answer: JavaScript supports the following arithmetic operations
(which you can group in brackets to form more complex expressions):
Unary operations have one argument (in the following examples,
the argument is a):
-a // change the sign of a
~a // bitwise NOT a
++a // add 1 to a (before using a)
a++ // add 1 to a (after using a)
--a // subtract 1 from a (before using a)
a-- // subtract 1 from a (after using a)
Binary operations operations have two arguments (in the following examples,
the arguments are a and b):
a * b // multiply a by b
a / b // divide a by b
a % b // find the remainder of division of a by b
a + b // add a and b
a - b // subtract b from a
a & b // bitwise a AND b
a | b // bitwise a OR b
a ^ b // bitwise a XOR b
Shifts are the following operations:
a << b // shift a by b bits to the left
// (padding with zeros)
a >> b // shift a by b bits to the right
// (copying the sign bit)
a >>> b // shift a by b bits to the right
// (padding with zeros)
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© 1999-2006, Alexei Kourbatov
