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Re: How to best update three columns

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Dr J R Stockton wrote on 23 jan 2013 in comp.lang.javascript:

> In comp.lang.javascript message <XnsA150CF1952965eejj99@194.109.133.133>
> , Tue, 22 Jan 2013 20:21:31, Evertjan. <exxjxw.hannivoort@inter.nl.net>
> posted:
> 
>>
>>var t = document.getElementsByTagName('table')[0];
>>var tb = t.getElementsByTagName('tbody')[0];
>>
> 
> I think it generally better to use something other than a numerical
> index to identify the whole Table, in case the number or order of Tables
> is changed.  Use a name or ID instead, on the Table or on some bordering
> element.

Indeed, however in examples, the number is an exellent way to show general 
principles without including unrelated names or id's, and the only simple 
way to identify an unnamed [mostly single] tbody.

In small pages, where you are confident there is only one table

var t = document.getElementsByTagName('table')[0];

is very usable, as you can copy, link or serverside include this piece of 
clientside code witout alteration.

Also it is just as unsafe as other generalisations, like:

<style type='text/css'>
table thead {display:none;}
</style>


> Tony - I guess you are Swedish, or at least in Sweden; and that the
> Table may be a tide- or time- table.  In either case, "Tendancy" should
> be "Tendency"; and "Trend" might (or might not) be better.

John, your tendency to react on in the subtilities of British-English is 
not a trend, as it is an enjoyable constant factor of your postings. 

=============

In [at least in medical] scientific literture there seems to be a 
tendency, perhaps even a trendy upward trend, to write this nonsense:

"It is not statistically significant, but a trend is visible ..."

as if trends are exempted from the requirement of statistical significance 
to be "visible" in scientific literture.

-- 
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

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How to best update three columns "Tony" <tony.johansson@inport.com> - 2013-01-22 16:07 +0100
  Re: How to best update three columns "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-01-22 20:21 +0100
    Re: How to best update three columns "Tony" <tony.johansson@inport.com> - 2013-01-23 10:08 +0100
      Re: How to best update three columns "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-01-23 11:26 +0100
    Re: How to best update three columns Dr J R Stockton <reply1300@merlyn.demon.co.uk.invalid> - 2013-01-23 18:54 +0000
      Re: How to best update three columns "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2013-01-24 10:01 +0100
  Re: How to best update three columns Bart Van der Donck <bart@nijlen.com> - 2013-01-23 01:11 -0800

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