var SafeRange = function (array, startIndex, endIndex, throwError){ 
var len = _AN_Read_length('length', array); 
if (startIndex < 0 || startIndex > len || startIndex >= endIndex || endIndex > len || startIndex + endIndex > len) { 
if (throwError) { 
throw new Error('Range Error: Values outside acceptable range')
} 
return false ; 
} 
 else { 
return true ; 
} 
} 
; 
module.exports = SafeRange;