code: function exponent( x ) {
  	// Convert `x` to an unsigned 32-bit integer corresponding to the IEEE 754 binary representation:
  	var w = getWord( x );
  
  	// Apply a mask to isolate only the exponent bits and then shift off all bits which are part of the fraction:
  	w = ( w & EXP_MASK ) >>> 23;
  
  	// Remove the bias and return:
  	return w - BIAS;
  }
docs: EXPONENT // 
  FUNCTION: exponent( x )
  Returns an integer corresponding to the unbiased exponent of a single-precision floating-point number.
  
  @param {Number} x - single-precision floating-point number
  @returns {Number} unbiased exponent