External module "number/float32/base/signbit/docs/types/index.d"

Export assignment signbitf

• signbitf(x: number): boolean

• Returns a boolean indicating if the sign bit is on (true) or off (false).

  Parameters

  • x: number

    single-precision floating-point number

  Returns boolean

  boolean indicating if sign bit is on or off

  Example

  var toFloat32 = require( `@stdlib/number/float64/base/to-float32` );
  var bool = signbitf( toFloat32( 4.0 ) );
  // returns false

  Example

  var toFloat32 = require( `@stdlib/number/float64/base/to-float32` );
  var bool = signbitf( toFloat32( -9.14e-34 ) );
  // returns true

  Example

  var bool = signbitf( 0.0 );
  // returns false

  Example

  var bool = signbitf( -0.0 );
  // returns true