# Infinity and -Infinity

``1 / 0; // Infinity// Wait! WHAAAT?``

Infinity is a property of the global object (therefore a global variable) that represents mathematical infinity. It is a reference to Number.POSITIVE_INFINITY

It is greater than any other value, and you can get it by dividing by 0 or by evaluating the expression of a number that's so big that overflows. This actually means there is no division by 0 errors in JavaScript, there is Infinity!

There is also -Infinity which is mathematical negative infinity, and it's lower than any other value.

To get -Infinity you negate Infinity, or get a reference to it in Number.NEGATIVE_INFINITY.

``- (Infinity); // -Infinity``

Now let's have some fun with examples:

``Infinity > 123192310293; // true-Infinity < -123192310293; // true1 / 0; // InfinityMath.pow(123123123, 9123192391023); // InfinityNumber.MAX_VALUE * 2; // Infinity23 / Infinity; // 0-Infinity; // -Infinity-Infinity === Number.NEGATIVE_INFINITY; // true-0; // -0 , yes there is a negative 0 in the language0 === -0; // true1 / -0; // -Infinity1 / 0 === 1 / -0; // falseInfinity + Infinity; // Infinityvar a = 0, b = -0;a === b; // true1 / a === 1 / b; // false// Try your own!``