README
isOdd
Test if a finite numeric value is an odd number.
Installation
npm install @stdlib/math-base-assert-is-odd
Usage
var isOdd = require( '@stdlib/math-base-assert-is-odd' );
isOdd( x )
Tests if a finite numeric
value is an odd number.
var bool = isOdd( 5.0 );
// returns true
bool = isOdd( -2.0 );
// returns false
bool = isOdd( 0.0 );
// returns false
bool = isOdd( NaN );
// returns false
Notes
The function assumes a finite
number
. If provided positive or negativeinfinity
, the function will returntrue
, when, in fact, the result is undefined. Ifx
can beinfinite
, wrap the implementation as follows:function check( x ) { return ( x < Infinity && x > -Infinity && isOdd( x ) ); } var bool = check( Infinity ); // returns false bool = check( -Infinity ); // returns false
Examples
var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var isOdd = require( '@stdlib/math-base-assert-is-odd' );
var bool;
var x;
var i;
for ( i = 0; i < 100; i++ ) {
x = round( randu()*100.0 );
bool = isOdd( x );
console.log( '%d is %s', x, ( bool ) ? 'odd' : 'not odd' );
}
Notice
This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
Community
License
See LICENSE.
Copyright
Copyright © 2016-2021. The Stdlib Authors.