JavaScript Discussion Boards

Re: using global variables

Ali Al Omairi(Abu AlHassan)4-Mar-11 11:09

Ali Al Omairi(Abu AlHassan)

4-Mar-11 11:09

Good Answer, Monjurul.

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Re: using global variables

Monjurul Habib5-Mar-11 7:04

Monjurul Habib

5-Mar-11 7:04

Thanx

Accessing local machine from web page

pstsp91127-Feb-11 3:52

pstsp911

27-Feb-11 3:52

Is it possible to access local machine form webpage without IE/ActiveX? For example, can I execute an exe file on a local machine? Or, If viewer's machine hosts a webservice, can i invoke it through webpage?

Re: Accessing local machine from web page

Not Active27-Feb-11 6:01

Not Active

27-Feb-11 6:01

No. Think about it. Would you want some website, written by an unknown party, to run an application on your local systems, say "format c:"

I know the language. I've read a book. - _Madmatt

Re: Accessing local machine from web page

Not Active1-Mar-11 11:57

Not Active

1-Mar-11 11:57

Since the OP asked "without IE/ActiveX" what relevance does this have to the question? And BTW, no it can't

I know the language. I've read a book. - _Madmatt

Re: Accessing local machine from web page

Ali Al Omairi(Abu AlHassan)2-Mar-11 0:41

Ali Al Omairi(Abu AlHassan)

2-Mar-11 0:41

ok, sir.
I was rush, but the good point is that i asked you before posting an answer. i wish that Manfred didn't see it (i'll kill you if you told him) Wink | ;)

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url problem

manikumar_gutti26-Feb-11 3:16

manikumar_gutti

26-Feb-11 3:16

Thank you for the answer i asked before. it is great. i have the same problem with url. just look at the code below.

// open a hypertext link with javascript: scheme to call display function
document.write('')

// print transparent image (use any height and width)
document.write('')

// close link tag
document.write('')

in href link why they didnt take the url. what is the meaning of that code "javascript:display(\' '+(red+green+blue)+'\')" why they take like that? can u expaline it clearly.

regards
Manikanta

Re: url problem

Not Active26-Feb-11 4:33

Not Active

26-Feb-11 4:33

manikumar_gutti wrote:
in href link why they didnt take the url.

What href? Who are they?

manikumar_gutti wrote:
Thank you for the answer i asked before. it is great. i have the same problem

If you have the same problem you should ask in the same context, or at least reference the previous questions/answers.

Remember, we are not sitting at the same desk as you, we don't see the same thing you do, so you can't asked a question without some frame of reference or giving a complete description of the problem.

I know the language. I've read a book. - _Madmatt

Re: url problem

Richard MacCutchan26-Feb-11 5:45

Richard MacCutchan

26-Feb-11 5:45

I get the feeling that you have taken someone else's code and are working through it step by step trying to figure out what is happening. I would suggest you get a good Javscript book or online tutorial, and get comfortable with the language before addressing some more complex issues.

I must get a clever new signature for 2011.

Re: url problem

Ali Al Omairi(Abu AlHassan)1-Mar-11 10:35

Ali Al Omairi(Abu AlHassan)

1-Mar-11 10:35

Richard MacCutchan wrote:
I get the feeling that you have taken someone else's code

Sir, I believe that every student do the same thing, because they think they are making a better time. but the truth is that they are wasting their time and also other's.

Help people,so poeple can help you.

Re: url problem

Richard MacCutchan1-Mar-11 21:40

Richard MacCutchan

1-Mar-11 21:40

Ali Al Omairi(Abu AlHassan) wrote:
they are wasting their time and also other's.

I think that may or may not be the case; I have learned lots of useful things by taking someone else's code and working through it. However, I usually start by studying the basics of the language in question.

I must get a clever new signature for 2011.

initialize the variable with image tag

manikumar_gutti26-Feb-11 1:37

manikumar_gutti

26-Feb-11 1:37

hi,
I have a problem with this code. if you understand this please send me the explantion.
I dont understand the variable intialization. could u please tell me what it means.

var openImage = ""

function getPath(url)
{
lastSlash = url.lastIndexOf("/")
return url.substring(0, lastSlash + 1)
}

regards
manikanta

Re: initialize the variable with image tag

Richard MacCutchan26-Feb-11 2:30

Richard MacCutchan

26-Feb-11 2:30

Assuming url contains something like "dir/subdir/filename" then you will get the following:

openImage = <IMG SRC="filenamedg
closeImage = .gif" HEIGHT=21 WIDTH=16>

// so putting them together will create the string 

<IMG SRC="filenamedg.gif" HEIGHT=21 WIDTH=16>

I must get a clever new signature for 2011.

Re: initialize the variable with image tag

parths27-Feb-11 20:21

parths

27-Feb-11 20:21

var openImage = "<IMG SRC=\"" + getPath(location.href) + "dg"
var closeImage = ".gif\" HEIGHT=21 WIDTH=16>"

function getPath(url)
{
lastSlash = url.lastIndexOf("/")
return url.substring(0, lastSlash + 1)
}

The code uses location.href, so I think it's looking for a file name dg.gif in the same folder as the web-page being referenced.

Richard MacCutchan wrote:

I think (assuming my page is 'http://mywebdomain/myfolder/mypage.html') this would be:

<IMG SRC="http://mywebdomain/myfolder/dg.gif" HEIGHT=21 WIDTH=16>

"It was when I found out I could make mistakes that I knew I was on to something."
-Ornette Coleman

"Philosophy is a study that lets us be unhappy more intelligently."
-Anon.

Re: initialize the variable with image tag

Richard MacCutchan27-Feb-11 22:13

Richard MacCutchan

27-Feb-11 22:13

You are right of course, I misread the getPath() function.

I must get a clever new signature for 2011.

phone number validation in javascript

manikumar_gutti25-Feb-11 1:36

manikumar_gutti

25-Feb-11 1:36

Hi
Thank you for your answer that i last time i asked. Now i want the phone number validation in javascript. How can we validate a phone number. if i give a invalid phone number it gives an error mesage. eg: 000000000

Re: phone number validation in javascript

Richard MacCutchan25-Feb-11 2:24

Richard MacCutchan

25-Feb-11 2:24

manikumar_gutti wrote:
Thank you for your answer that i last time i asked

In fact you were shown some Google links; perhaps you could learn to do the same for yourself now you know how simple it is.

I must get a clever new signature for 2011.

Re: phone number validation in javascript

Ali Al Omairi(Abu AlHassan)25-Feb-11 7:50

Ali Al Omairi(Abu AlHassan)

25-Feb-11 7:50

Sir, be easy with him.
Sometimes thirsty people need some one to tell them to drink.

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Re: phone number validation in javascript

Not Active25-Feb-11 10:13

Not Active

25-Feb-11 10:13

Thirsty people standing in a stream shouldn't need to be told to drink. Even if they stumble they will drink.

I know the language. I've read a book. - _Madmatt

Re: phone number validation in javascript

Ali Al Omairi(Abu AlHassan)25-Feb-11 10:28

Ali Al Omairi(Abu AlHassan)

25-Feb-11 10:28

well ..;
as you might know, this can not be applied to all people.

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Re: phone number validation in javascript

Richard MacCutchan25-Feb-11 23:08

Richard MacCutchan

25-Feb-11 23:08

Or as we say "You can lead a horse to water but you cannot make it drink". However, one of the main qualities necessary to be a programmer (or anything else) is the ability to do one's own research. The sooner some of the questioners here learn that (hard) lesson, the better they will become. Merely posting questions asking others to do the work for them means they will not learn anything of much use, and will certainly not go very far in life.

I must get a clever new signature for 2011.

Re: phone number validation in javascript

Pravin Patil, Mumbai25-Feb-11 2:47

Pravin Patil, Mumbai

25-Feb-11 2:47