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  1. #1
    Junior Member
    Join Date
    Dec 2010
    Posts
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    25361
    Hi,
    Please i am confuse to know the work of this sign (!)...which is exclamation sign in programming.

    i have this code here which which i remove the exclamation sign (!)..it dont work but when i add it ,then it work.

    Here is the code
    <script type="text/javascript">
    function getvalue()
    {
    var mytextfield=document.getElementById("mytext");
    if(mytextfield.value!="")
    {
    alert("You Entered:"+mytextfield.value)
    }
    else{
    alert("would you enter some text")
    }
    }
    </script>
    <input type="text" id="mytext" size="30">
    <input type="button" value="check" onclick="getvalue()">

    Please help me to understand the use of this sign !.

    Thank you.
    Clement Osei.

  2.  

  3. #2
    Unpaid WDF Intern TheGAME1264's Avatar
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    In conjunction with the equals sign, it means "not equal to".
    If I've helped you out in any way, please pay it forward. My wife and I are walking for Autism Speaks. Please donate, and thanks.

    If someone helped you out, be sure to "Like" their post and/or help them in kind. The "Like" link is on the bottom right of each post, beside the "Share" link.

    My stuff (well, some of it): My bowling alley site | Canadian Postal Code Info (beta)

  4. #3
    Junior Member
    Join Date
    Dec 2010
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    23
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    25361
    HI Thegame,

    Thanks.But can you have time to mentor me.I need you to make me know better about web development.

    Clement Osei.

  5. #4
    Unpaid WDF Intern TheGAME1264's Avatar
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    I don't really "mentor" people as such. I just try to guide them to a point where they can answer their own questions and take something I've told them and do their own thing with it. That's innovation.
    If I've helped you out in any way, please pay it forward. My wife and I are walking for Autism Speaks. Please donate, and thanks.

    If someone helped you out, be sure to "Like" their post and/or help them in kind. The "Like" link is on the bottom right of each post, beside the "Share" link.

    My stuff (well, some of it): My bowling alley site | Canadian Postal Code Info (beta)

  6. #5
    Junior Member
    Join Date
    Dec 2010
    Posts
    23
    Member #
    25361
    Hi,
    Thanks.But how can you help me apart from this forum discussion.
    Because i want to become a fully web developer.

    Thanks.
    Clement Osei

  7. #6
    Member RiDunne's Avatar
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    Feb 2011
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    6 times
    I would suggest using everyone's best friend, Google, and following some beginner tutorials.

  8. #7
    Unpaid WDF Intern TheGAME1264's Avatar
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    The question I have is, "why would I help you outside of the forums?" You get to become a web developer if I help you (possibly). What's in it for me in return?

    It doesn't really matter, though. I don't have that kind of time, and I'd rather help people in an environment where others can learn besides those who post.
    If I've helped you out in any way, please pay it forward. My wife and I are walking for Autism Speaks. Please donate, and thanks.

    If someone helped you out, be sure to "Like" their post and/or help them in kind. The "Like" link is on the bottom right of each post, beside the "Share" link.

    My stuff (well, some of it): My bowling alley site | Canadian Postal Code Info (beta)


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