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Message-ID: <2779103.sO63zRiCyQ@PointedEars.de>
From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To: Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
Organization: PointedEars Software (PES)
Date: Tue, 04 Mar 2014 12:16:09 +0100
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Subject: Re: Reversing the rows of a table ??
Newsgroups: comp.lang.javascript
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Michael Haufe (TNO) wrote:

> On Monday, March 3, 2014 6:31:53 PM UTC-6, Mel Smith wrote:
>> Michael said:
>> >
>> > You want to reverse the rows before you have all the rows?
> [...]
>>     No, after the table is completely loaded, then I wish to hide the
>>     table,
>> reverse the rows, then show the table
> 
> One approach is to create a second tbody in the table and then copy/move
> the old rows from the bottom up into the new tbody and then remove the old
> tbody when complete.
> 
> <https://developer.mozilla.org/en-US/docs/Web/API/HTMLTableElement>
> 
> Evertjan is correct though that it would be wiser to populate a different
> data structure and then reverse it there before populating the table.

That would require

  1a. Creating a native object.
  2a. Copying the table (body) data to that object.
  3a. Reversing the order of the data in the object.
  3b. nothing
  4a. Copying the data from the object to the DOM object.
  4b. Copying the data from the object to the DOM object
      in reverse order.

By contrast, you could just

  1c. Reverse the order of the nodes in the document tree in place.

Why is the former wiser?

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