External module "math/base/assert/is-nonnegative-integer/docs/types/index.d"

isNonNegativeInteger

• isNonNegativeInteger(x: number): boolean

• Tests if a finite double-precision floating-point number is a nonnegative integer.

  Notes

  • The function assumes a finite number. If provided positive infinity, the function will return true, when, in fact, the result is undefined.
  • The function does not distinguish between positive and negative zero.

  Parameters

  • x: number

    value to test

  Returns boolean

  boolean indicating whether the value is a nonnegative integer

  Example

  var bool = isNonNegativeInteger( 1.0 );
  // returns true

  Example

  var bool = isNonNegativeInteger( 0.0 );
  // returns true

  Example

  var bool = isNonNegativeInteger( -10.0 );
  // returns false