JavaScript » Constants » Infinity
Infinity is a numeric value that represents positive infinity.
In ECMAScript, Infinity is classified as a primitive value.
Infinity is a numeric value that represents positive infinity.
It is displayed, or printed out, when a very large positive number exceeds the
upper limit of the floating point numbers type which is
1.7976931348623157E+10308.
-Infinity is a numeric
value that represents negative infinity. It is displayed, or printed out, when a
very large negative number exceeds the lower limit of the floating point numbers
type which is -1.7976931348623157E+10308.
Also see number.NEGATIVE_INFINITY and
number.POSITIVE_INFINITY.
NOTE:
In JavaScript, all numbers, including integers, are treated as
floating point numbers.
Examples
Code:
BigPosNum = 1.5E+339 * 2.4E+317
document.write("BigPosNum = " + BigPosNum)Code:
BigNegNum = -1.5E+333
document.write("BigNegNum = " + BigNegNum Code:
BigNum = Infinity Code:
BigNegNum = -Infinity
