isfinite

Test if a numeric value is finite.

Usage

var isfinite = require( '@stdlib/math/base/assert/is-finite' );

isfinite( x )

Tests if a numeric value is finite.

var bool = isfinite( 3.14 );
// returns true

bool = isfinite( Number.POSITIVE_INFINITY );
// returns false

bool = isfinite( Number.NEGATIVE_INFINITY );
// returns false

bool = isfinite( NaN );
// returns false

Examples

var PINF = require( '@stdlib/math/constants/float64-pinf' );
var NINF = require( '@stdlib/math/constants/float64-ninf' );
var isfinite = require( '@stdlib/math/base/assert/is-finite' );

var bool = isfinite( 5.0 );
// returns true

bool = isfinite( -2.0e64 );
// returns true

bool = isfinite( PINF );
// returns false

bool = isfinite( NINF );
// returns false

bool = isfinite( NaN );
// returns false