What is negative infinity in JavaScript

In JavaScript, negative infinity refers to "-Infinity", which means a number smaller than any finite number (a numerical value of negative infinity). Generally, a value smaller than "-1.7976931348623157E 103088" is negative infinity. .

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

Infinity in JavaScript is a special number with interesting properties: it is larger than any finite number and is used to store values ​​representing positive infinity.

Negative infinity

And negative infinity refers to "-Infinity", which represents a numerical value of negative infinity.

In Javascript, the value exceeding 1.7976931348623157E 103088 is Infinity, and the value less than -1.7976931348623157E 103088 is negative infinity (-Infinity).

Let's -Infinity compare to some finite numbers:

Also, negative infinity is smaller than positive infinity:

When using operands with different signs, you may end up with negative infinity:

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