[Pas2js] htmlwidget in pas2j 2.2.0: pas.JS.isUndefined is not a function
Luca Olivetti
luca at ventoso.org
Mon Aug 29 14:22:24 CEST 2022
El 29/8/22 a les 14:11, Michael Van Canneyt ha escrit:
>
>
> On Mon, 29 Aug 2022, Luca Olivetti wrote:
>
>> As per the subject, I'm using pas2js 2.2.0 with fpc 3.2.2 and lazarus
>> 2.2.2.
>>
>> Since I had problems with Pas2JS_Widget, I'm now back to the basics
>> following this article:
>>
>> https://www.freepascal.org/~michael/articles/pas2js1/pas2js1.pdf
>>
>> and while the first method (page 12, plain javascript classes) works,
>> if I try to use the second one (using the httpwidget unit, not the
>> webwidget one as the article says) I get this error in firefox:
>>
>>
>> Uncaught TypeError: pas.JS.isUndefined is not a function
>> EventEntry webwidget.pas:2640
>> cb rtl.js:256
>> cb rtl.js:256
>> HookupEvent webwidget.pas:2665
>> AddEvent webwidget.pas:2690
>> SetHTMLEvent webwidget.pas:2477
>> DoRun login.lpr:27
>> Run custapp.pas:206
>> $main login.lpr:62
>> run rtl.js:141
>> <anonymous> login.html:51
>> webwidget.pas:2640:10
>
> very strange, it works here. if I look in the Javascript, I can see the
> function.
>
> Can you look in the generated .js file, you should see something like:
>
> this.isUndefined = function (v) {
> return v == undefined;
> };
> this.isDefined = function (v) {
> return !(v == undefined);
> };
Yes, the snippet is there
>
> Are you using optimizations ? If so, please try adding -O- in the custom
> options of the compiler.
Same error (plus 3 warnings "unreachable code after return statement")
Bye
--
Luca
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