javascript global property

Infinity

The Infinity global property is a numeric value representing infinity.

Interactive exampleOpen the canonical MDN source to run this embedded demo.

const maxNumber = 10 ** 1000; // Max positive number

if (maxNumber === Infinity) {
  console.log("Let's call it Infinity!");
  // Expected output: "Let's call it Infinity!"
}

console.log(1 / maxNumber);
// Expected output: 0

Value

The same number value as POSITIVE_INFINITY.

0

Description

Infinity is a property of the global object. In other words, it is a variable in global scope.

The value Infinity (positive infinity) is greater than any other number.

This value behaves slightly differently than mathematical infinity; see POSITIVE_INFINITY for details.

Examples

Using Infinity

console.log(Infinity); /* Infinity */
console.log(Infinity + 1); /* Infinity */
console.log(10 ** 1000); /* Infinity */
console.log(Math.log(0)); /* -Infinity */
console.log(1 / Infinity); /* 0 */
console.log(1 / 0); /* Infinity */

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.