simple-squiggle/node_modules/mathjs/docs/reference/functions/isInteger.md

Function isInteger

Test whether a value is an integer number. The function supports number, BigNumber, and Fraction.

The function is evaluated element-wise in case of Array or Matrix input.

Syntax

math.isInteger(x)

Parameters

Parameter	Type	Description
x	number | BigNumber | Fraction | Array | Matrix	Value to be tested

Returns

Type	Description
boolean	Returns true when x contains a numeric, integer value. Throws an error in case of an unknown data type.

Throws

Type	Description

Examples

math.isInteger(2)                     // returns true
math.isInteger(0)                     // returns true
math.isInteger(0.5)                   // returns false
math.isInteger(math.bignumber(500))   // returns true
math.isInteger(math.fraction(4))      // returns true
math.isInteger('3')                   // returns true
math.isInteger([3, 0.5, -2])          // returns [true, false, true]
math.isInteger(math.complex('2-4i')   // throws an error

See also

isNumeric, isPositive, isNegative, isZero