Determines if the given value is a number.
Note: This includes NaN, Infinity, and -Infinity, matching the ECMAScript number primitive.
NaN
Infinity
-Infinity
number
Value to test.
True if the value is a number.
Determines if the given value is a number.
Note: This includes
NaN,Infinity, and-Infinity, matching the ECMAScriptnumberprimitive.