JavaScript POSITIVE_INFINITY Property

　JavaScript Number Object

POSITIVE_INFINITYproperty represents the positive infinity value.

The value of Number.POSITIVE_INFINITY is the same as the global object'sInfinityattribute values are the same.

Because POSITIVE_INFINITY is a static property of Number, you should always use it asNumber.POSITIVE_INFINITYrather than using it as an attribute of the created Number object.

Syntax:

Number.POSITIVE_INFINITY

Number.POSITIVE_INFINITY;

The behavior of the return value is slightly different from mathematical infinity:

• Any positive value (including POSITIVE_INFINITY) multiplied by POSITIVE_INFINITY is POSITIVE_INFINITY

• Any negative value (including NEGATIVE_INFINITY) multiplied by POSITIVE_INFINITY results in NEGATIVE_INFINITY

• Any positive number divided by POSITIVE_INFINITY results in positive zero

• Any negative number divided by POSITIVE_INFINITY results in negative zero

• Zero multiplied by POSITIVE_INFINITY results in NaN

• NaN multiplied by POSITIVE_INFINITY is NaN

• POSITIVE_INFINITY divided by any negative value other than NEGATIVE_INFINITY is NEGATIVE_INFINITY

• POSITIVE_INFINITY divided by any positive value other than POSITIVE_INFINITY is POSITIVE_INFINITY

• POSITIVE_INFINITY divided by NEGATIVE_INFINITY or POSITIVE_INFINITY results in NaN

Browser Compatibility

All browsers fully support the POSITIVE_INFINITY property:

Technical Details

More Examples

Returns POSITIVE_INFINITY when overflow occurs:

var num =　5　/　0;

　JavaScript Number Object