.. _global.isFinite:

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global.isFinite
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   bool **isFinite** (:ref:`number` **expression**)


Parameters
----------

+----------------+----------------------------------+
| **expression** | Any valid JavaScript expression. |
+----------------+----------------------------------+



Description
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Evaluates an expression and reports whether the result is a finite number.

Returns true if the expression is a finite number, false otherwise. False if the value is infinity or negative infinity.