Function isNegative
Test whether a value is negative: smaller than zero.
The function supports types number
, BigNumber
, Fraction
, and Unit
.
The function is evaluated element-wise in case of Array or Matrix input.
Syntax
isNegative(x)
Parameters
Parameter | Type | Description |
---|---|---|
x |
number | BigNumber | Fraction | Unit | Array | Matrix | Value to be tested |
Returns
Type | Description |
---|---|
boolean | Returns true when x is larger than zero. Throws an error in case of an unknown data type. |
Examples
isNegative(3); // returns false
isNegative(-2); // returns true
isNegative(0); // returns false
isNegative(-0); // returns false
isNegative(bignumber(2)); // returns false
isNegative(fraction(-2, 5)); // returns true
isNegative('-2'); // returns true
isNegative([2, 0, -3]'); // returns [false, false, true]