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guys, do you think using global variables good or bad?
Help people,so poeple can help you.
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Its much too broad of a question to give a black and white answer. Globals are useful in some narrow situation but should be used with caution to avoid poluting the namespace.
I know the language. I've read a book. - _Madmatt
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Mark Nischalke wrote: black and white answer
Sir, I don't want black and white answers, I want a range of colors.
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Global variables have slow performance because they live in a highly-populated namespace. Not only are they stored along with many other user-defined quantities and JavaScript variables, the browser must also distinguish between global variables and properties of objects that are in the current context. The down side is this convenience slows down code that uses global variables.
Sometimes global variables also have higher performance, like local function variables, if you declare them explicitly with the var keyword. An example is var d = document, instead of d = document, but it's not reliable. Mysterious behavior that works sometimes but not always is a danger sign, and I feel more comfortable using local function variables.
More detail on Performance Optimizations for High Speed JavaScript
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Monjurul Habib wrote: local function variables, if you declare them explicitly with the var keyword.
Then they wouldn't be global now would they?
I know the language. I've read a book. - _Madmatt
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OK, sir;
..., Shall you forgive him ?!!
Help people,so poeple can help you.
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I really like your comment "Help people,so poeple can help you."
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over my head, sir.
Help people,so poeple can help you.
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I think you will find your answer in the link..
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I didn't have a question. I do know though, do you know the difference between the meaning of local and global?
I know the language. I've read a book. - _Madmatt
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Sir, I am not a learned person like you. Can you please provide a link where you dump all of your knowledge specially on Javascript?? Thanks in advance.
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I store it here[^]
I know the language. I've read a book. - _Madmatt
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great link.
and may b you forgot to share this link
modified on Saturday, March 5, 2011 6:11 PM
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Stop it, the pair of you. There is no excuse for this form of behaviour in the forums. Please refrain from these attacks - they are not clever.
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over my head, Sir
Help people,so poeple can help you.
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Good Answer, Monjurul.
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Help people,so poeple can help you.
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Thanx
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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?
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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
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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
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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)
Help people,so poeple can help you.
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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
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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.
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