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  comp.lang.javascript Sabapathi Ramachandiran <sabapathiramachandiran@gmail.com> - 2019-03-05 01:47 -0800
    Re: comp.lang.javascript "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2019-03-05 12:04 +0100
      Re: comp.lang.javascript John G Harris <niam@jghnorth.org.uk.invalid> - 2019-03-05 18:23 +0000
        Re: comp.lang.javascript "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2019-03-05 19:43 +0100
      Re: comp.lang.javascript dr.j.r.stockton@gmail.com - 2019-03-05 12:26 -0800
        Re: comp.lang.javascript "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2019-03-05 21:49 +0100

#36082 — comp.lang.javascript

JavaScript is a programming language commonly used in web development. It was originally developed by Netscape as a means to add dynamic and interactive elements to websites. ... Like server-side scripting languages, such as PHP and ASP, JavaScript code can be inserted anywhere within the HTML of a webpage.

https://www.gangboard.com/app-programming-scripting-training/javascript-training

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#36083

Sabapathi Ramachandiran <sabapathiramachandiran@gmail.com> wrote on 05 Mar
2019 in comp.lang.javascript: 

> JavaScript is a programming language commonly used in web development.
> It was originally developed by Netscape as a means to add dynamic and
> interactive elements to websites. ... Like server-side scripting
> languages, such as PHP and ASP, JavaScript code can be inserted anywhere
> within the HTML of a webpage. 

Wrong!

ASP is not a language, 
only a serverside platform and interpreting engine.

So ASP cannot be inserted, 
the Classic-ASP engine can interpret inserted, among others, 
Jscript [= fairly old javascript] and VBScript.

Wrong!

A webpage is not something where one can insert something in,
however, if you mean a web-page stream, yes, HTML, CSS, and Javascript can 
be part of that text-stream.

However serverside languages cannot usefully be inserted in such streams,
they can only be inserted in the serverside source text-file, and are 
filtered out and executed while the text-stream is generated.

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

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#36084

On Tue, 05 Mar 2019 12:04:08 +0100, "Evertjan."
<exxjxw.hannivoort@inter.nl.net> wrote:

  <snip>
>A webpage is not something where one can insert something in,
>however, if you mean a web-page stream, yes, HTML, CSS, and Javascript can 
>be part of that text-stream.
  <snip>

Actually, it's a document that is sent, and you can insert extra text
in it (if you're brave enough).

  John

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#36085

John G Harris <niam@jghnorth.org.uk.invalid> wrote on 05 Mar 2019 in 
comp.lang.javascript:

> On Tue, 05 Mar 2019 12:04:08 +0100, "Evertjan."
> <exxjxw.hannivoort@inter.nl.net> wrote:
> 
>   <snip>
>>A webpage is not something where one can insert something in,
>>however, if you mean a web-page stream, yes, HTML, CSS, and Javascript can 
>>be part of that text-stream.
>   <snip>
> 
> Actually, it's a document that is sent, and you can insert extra text
> in it (if you're brave enough).

If there is no text [a string, meaning readable characters, including end of 
line etc.] in it, it cannot induce the browser to make a web-page, I 
presume.

However it was more about the misconception of what ASP was.

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

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#36086

On Tuesday, 5 March 2019 11:04:45 UTC, Evertjan.  wrote:

> A webpage is not something where one can insert something in ...

Not necessarily not.  For example, if the Web page contains a
Button which causes 'eval' of the contents of an editable
Textarea, then the user can, as far as I can see (and tested
locally) insert into the displayed page anything which can
be expressed in JavaScript in a Textarea.

I just performed thusly, as a test,
 Divn.innerHTML = "RHUBARB<br>...<br>" + document.body.innerHTML
inserting a copy of the body in the body (without its CSS and with
non-working script).  Windows 10, current Firefox.

And, in my translation of the first two chapters of Lagrange's
famous paper, which worked on the Web, I execute something like
     BODY = BODY.replace(RegExp, String) ; //.

So it appears that a suitably-coded Web page can be altered to
whatever a browser can show.

-- 
  (c) John Stockton, near London, UK.  Using Google Groups.           |
 Mail: J.R.""""""""@physics.org - or as Reply-To, if any.             |

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#36087

dr.j.r.stockton@gmail.com wrote on 05 Mar 2019 in comp.lang.javascript:

> On Tuesday, 5 March 2019 11:04:45 UTC, Evertjan.  wrote:
> 
>> A webpage is not something where one can insert something in ...
> 
> Not necessarily not.  For example, if the Web page contains a
> Button which causes 'eval' of the contents of an editable
> Textarea, then the user can, as far as I can see (and tested
> locally) insert into the displayed page anything which can
> be expressed in JavaScript in a Textarea.
> 
> I just performed thusly, as a test,
>  Divn.innerHTML = "RHUBARB<br>...<br>" + document.body.innerHTML
> inserting a copy of the body in the body (without its CSS and with
> non-working script).  Windows 10, current Firefox.
> 
> And, in my translation of the first two chapters of Lagrange's
> famous paper, which worked on the Web, I execute something like
>      BODY = BODY.replace(RegExp, String) ; //.
> 
> So it appears that a suitably-coded Web page can be altered to
> whatever a browser can show.

Certainly John, yes, 
that "something" was sloppy of me,
I ment "some serverside code", 
as the web-page only exists in the browser.



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

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