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String concatenation in javascript

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Dave

String concatenation in javascript

Hi,
I'm trying to update a textarea after a click on an anchor so I wrote this code:

html anchor onClick: ((html jQuery id: 'textAreaId') value: (html jQuery id: 'textAreaId') value , 'some text'); with: 'a label'.

Unfortunately it generates this html:

<a onclick="$("#textAreaId").val($("#textAreaId").val();"some text")">a label</a>

Instead I need an html like:

<a onclick="$("#textAreaId").val($("#textAreaId").val()+"some text")">a label</a>

i.e a string concatenation in javascript (see plus sign instead of semicolon).

I can't find anything on seaside image.
Can you help me?

Cheers
Dave

Dave

Re: String concatenation in javascript

I resend the message because the format was not correct.

Hi,
I'm trying to update a textarea and I wrote this code:
html anchor onClick: ((html jQuery id: 'textAreaId') value: (html jQuery id: 'textAreaId') value , 'some text'); with: 'a label'.

Unfortunately it generates this html:
<a onclick="$("#textAreaId").val($("#textAreaId").val();"some text")">a label

Instead I need an html like:
<a onclick="$("#textAreaId").val($("#textAreaId").val()+"some text")">a label

i.e a string concatenation in javascript (see plus sign instead of semicolon).

I can't find anything on seaside image.
Can you help me?

Cheers
Dave

Robert Sirois

Re: String concatenation in javascript

Try adding parens like this (untested):

html anchor onClick: ((html jQuery id: 'textAreaId') value: ((html jQuery id: 'textAreaId') value), 'some text'); with: 'a label'.

It looks like the parser thinks that ... value, 'some text'... is two separate JavaScript statements, which is not your intent.

> Date: Mon, 3 Jun 2013 17:43:38 -0700

> From: [hidden email]
> To: [hidden email]
> Subject: [Seaside] Re: String concatenation in javascript
>
> I resend the message because the format was not correct.
>
>
> Hi,
> I'm trying to update a textarea and I wrote this code:
> html anchor onClick: ((html jQuery id: 'textAreaId') value: (html jQuery id:
> 'textAreaId') value , 'some text'); with: 'a label'.
>
> Unfortunately it generates this html:
> a label
>
> Instead I need an html like:
> a label
>
> i.e a string concatenation in javascript (see plus sign instead of
> semicolon).
>
> I can't find anything on seaside image.
> Can you help me?
>
> Cheers
> Dave
>
>
>
>
> --
> View this message in context: http://forum.world.st/String-concatenation-in-javascript-tp4691470p4691471.html
> Sent from the Seaside General mailing list archive at Nabble.com.
> _______________________________________________
> seaside mailing list
> [hidden email]
> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

_______________________________________________
seaside mailing list
[hidden email]
http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

Johan Brichau-2

Re: String concatenation in javascript

In reply to this post by Dave

The JSObject>>, is for concatenating generated javascript expressions. If you want to generate a javascript expression that does string concatenation, you need to write actual javascript.
Afaik, there is no Seaside method to generate string concatenation expressions.

I'm not seeing the stuff you might have pasted in your email correctly, but this is how I would write your expression:

html anchor
onClick: ((html jQuery id: 'textAreaId') value: (JSStream on: '$(''#textAreaId'').value()+''some text'' '));
with: 'a label'.

cheers,
Johan

On 04 Jun 2013, at 02:43, Dav <[hidden email]> wrote:

> I resend the message because the format was not correct.
>
>
> Hi,
> I'm trying to update a textarea and I wrote this code:
> html anchor onClick: ((html jQuery id: 'textAreaId') value: (html jQuery id:
> 'textAreaId') value , 'some text'); with: 'a label'.
>
> Unfortunately it generates this html:
> a label
>
> Instead I need an html like:
> a label
>
> i.e a string concatenation in javascript (see plus sign instead of
> semicolon).
>
> I can't find anything on seaside image.
> Can you help me?
>
> Cheers
> Dave
>
>
>
>
> --
> View this message in context: http://forum.world.st/String-concatenation-in-javascript-tp4691470p4691471.html
> Sent from the Seaside General mailing list archive at Nabble.com.
> _______________________________________________
> seaside mailing list
> [hidden email]
> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

_______________________________________________
seaside mailing list
[hidden email]
http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

Dave

Re: String concatenation in javascript

Johan Brichau-2 wrote

The JSObject>>, is for concatenating generated javascript expressions. If you want to generate a javascript expression that does string concatenation, you need to write actual javascript.
Afaik, there is no Seaside method to generate string concatenation expressions.

I guess you are right

I'm not seeing the stuff you might have pasted in your email correctly,

The expressions was:

Unfortunately it generates this html:
<a onclick="$("#textAreaId").val($("#textAreaId").val();"some text")">a label

Instead I need an html like:
<a onclick="$("#textAreaId").val($("#textAreaId").val()+"some text")">a label

but this is how I would write your expression:

html anchor
onClick: ((html jQuery id: 'textAreaId') value: (JSStream on: '$(''#textAreaId'').value()+''some text'' '));
with: 'a label'.

cheers,
Johan

Thanks Johan it works, even if there is a typo: value() instead of val()

The right one is:
html anchor
onClick: ((html jQuery id: 'textAreaId') value: (JSStream on: '$(''#textAreaId'').val()+''some text'' '));
with: 'a label'.

Cheers,
Dave

Winfried Jacobs-2

Re: String concatenation in javascript

Hello Dave,

with a little extra method in JSObject (*) you could even write it completely in
Smalltalk:

html anchor
onClick: (
(html jQuery id: 'textAreaId') value: (
html jQuery id: 'textAreaId') value + 'some text'
);
with: 'a label'.

(*) Method #+ in JSObject defined like this:

+ anObject
"Combine the receiver and anObject with a plus sign"

self addDecoration: (JSBinary new operator: '+'; statement: anObject)

Best regards
Winfried

> Dav <[hidden email]> hat am 4. Juni 2013 um 17:23 geschrieben:
>
>
> Johan Brichau-2 wrote
> > The JSObject>>, is for concatenating generated javascript expressions. If
> > you want to generate a javascript expression that does string
> > concatenation, you need to write actual javascript.
> > Afaik, there is no Seaside method to generate string concatenation
> > expressions.
>
> I guess you are right
>
>
> > I'm not seeing the stuff you might have pasted in your email correctly,
>
> The expressions was:
>
> Unfortunately it generates this html:
> a label
>
> Instead I need an html like:
> a label
>
>
> > but this is how I would write your expression:
> >
> > html anchor
> > onClick: ((html jQuery id: 'textAreaId') value: (JSStream on:
> > '$(''#textAreaId'').value()+''some text'' '));
> > with: 'a label'.
> >
> >
> > cheers,
> > Johan
>
> Thanks Johan it works, even if there is a typo: value() instead of val()
>
> The right one is:
> html anchor
> onClick: ((html jQuery id: 'textAreaId') value: (JSStream on:
> '$(''#textAreaId'').val()+''some text'' '));
> with: 'a label'.
>
> Cheers,
> Dave
>
>
>
> --
> View this message in context:
> http://forum.world.st/String-concatenation-in-javascript-tp4691470p4691616.html
> Sent from the Seaside General mailing list archive at Nabble.com.
> _______________________________________________
> seaside mailing list
> [hidden email]
> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

_______________________________________________
seaside mailing list
[hidden email]
http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

Dave

Re: String concatenation in javascript

Yep Winfried, it's something I'm wondering about, thanks for the suggestion, I'm going to implement it
Dave

Winfried Jacobs-2 wrote

Hello Dave,

with a little extra method in JSObject (*) you could even write it completely in
Smalltalk:

html anchor
onClick: (
(html jQuery id: 'textAreaId') value: (
html jQuery id: 'textAreaId') value + 'some text'
);
with: 'a label'.

(*) Method #+ in JSObject defined like this:

+ anObject
"Combine the receiver and anObject with a plus sign"

self addDecoration: (JSBinary new operator: '+'; statement: anObject)

Best regards
Winfried