JavaScript POSITIVE_INFINITY attribute

　Objet Number JavaScript

POSITIVE_INFINITYattribute represents the positive infinity value.

The value of Number.POSITIVE_INFINITY is the same as the global object'sInfinityhave the same value.

Because POSITIVE_INFINITY is a static property of Number, you should always use it asNumber.POSITIVE_INFINITYbut not as the attribute of the created Number object.

Syntax:

Number.POSITIVE_INFINITY

Number.POSITIVE_INFINITY;

The behavior of the returned 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 is NEGATIVE_INFINITY

• Any positive number divided by POSITIVE_INFINITY is positive zero

• Any negative number divided by POSITIVE_INFINITY is negative zero

• Zero times POSITIVE_INFINITY is NaN

• NaN multiplié par POSITIVE_INFINITY donne NaN

• POSITIVE_INFINITY divisé par tout autre nombre négatif que NEGATIVE_INFINITY donne NEGATIVE_INFINITY

• POSITIVE_INFINITY divisé par tout autre nombre positif que POSITIVE_INFINITY donne POSITIVE_INFINITY

• POSITIVE_INFINITY divisé par NEGATIVE_INFINITY ou POSITIVE_INFINITY donne NaN

Compatibilité navigateur

POSITIVE_INFINITY est complètement supporté par tous les navigateurs :

Détails techniques

Plus d'exemples

Retourne POSITIVE_INFINITY lors d'un débordement :

var　num　=　5　/　0;

　Objet Number JavaScript