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isNegativeInteger
Test if a value is a number having a negative integer value.
Usage
var isNegativeInteger = require( '@stdlib/assert/is-negative-integer' );
isNegativeInteger( value )
Tests if a value
is a number
having a negative integer
value.
var Number = require( '@stdlib/number/ctor' );
var bool = isNegativeInteger( -5.0 );
// returns true
bool = isNegativeInteger( new Number( -5.0 ) );
// returns true
bool = isNegativeInteger( 5.0 );
// returns false
bool = isNegativeInteger( -3.14 );
// returns false
bool = isNegativeInteger( null );
// returns false
isNegativeInteger.isPrimitive( value )
Tests if a value
is a primitive number
having a negative integer
value.
var Number = require( '@stdlib/number/ctor' );
var bool = isNegativeInteger.isPrimitive( -3.0 );
// returns true
bool = isNegativeInteger.isPrimitive( new Number( -3.0 ) );
// returns false
isNegativeInteger.isObject( value )
Tests if a value
is a Number
object having a negative integer
value.
var Number = require( '@stdlib/number/ctor' );
var bool = isNegativeInteger.isObject( -3.0 );
// returns false
bool = isNegativeInteger.isObject( new Number( -3.0 ) );
// returns true
Examples
var Number = require( '@stdlib/number/ctor' );
var isNegativeInteger = require( '@stdlib/assert/is-negative-integer' );
var bool = isNegativeInteger( -5.0 );
// returns true
bool = isNegativeInteger( new Number( -5.0 ) );
// returns true
bool = isNegativeInteger( 0.0 );
// returns false
bool = isNegativeInteger( -3.14 );
// returns false
bool = isNegativeInteger( 5.0 );
// returns false
bool = isNegativeInteger( '-5' );
// returns false
bool = isNegativeInteger( null );
// returns false