Function isFin

isFin(x: unknown): x is number

Checks if a value is a finite number (float or integer but not big int)

Parameters

x: unknown
possibly a number

Returns x is number

See

Example

isFin(1) => true
isFin(1.1) => true
isFin(1n) => false
isFin('1') => false
isFin(NaN) => false
isFin(null) => false
isFin(Number.NEGATIVE_INFINITY) => false
isFin(Number.POSITIVE_INFINITY) => false
isFin(Number.EPSILON) => true
isFin(-0) => true
isFin(+0) => true`