[Pas2js] How to change a div (or othe widget) content

Luca Olivetti luca at ventoso.org
Wed Oct 5 09:26:29 CEST 2022

El 5/10/22 a les 8:53, Michael Van Canneyt ha escrit:
>> Aagh, now I see where the confusion came from: in one message I told 
>> that, if I assign and empty content, the element would keep the old 
>> one, so you removed the check, but then when I create the widget it 
>> would empty the content that it got from the html.
> Yes, that's the consequence :)

The law of unintended consequences :-D

>> I guess I can't have my cake and eat it too, unless you could 
>> differentiate the two cases (i.e. initial assignment, when you just 
>> got the element from the html, and subsequent assignments).
> I've long been thinking to create a 'ClearContent' method, maybe this is a
> good occasion. It could actually set the HTML innertext/html, and for this
> widget then also set the textcontent to empty.
> But first I'll think about how to solve the detection of the initial
> setting, probably there is a way.

It's not a big issue, now I just use a single space when I want to clear 
the previous content.

function EnsureNotEmpty(const s:string):string;
  if s='' then
    result:=' '


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