function makeArray1(length) { 
   this.length = length 
   return this 
}

function makeArray2(length) { 
   this.length = length 
   return this 
}

function makeArray3(length) { 
   this.length = length 
   return this 
}

function makeArray4(length) { 
   this.length = length 
   return this 
}