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Author Topic: Javascript alert issue.  (Read 3017 times)

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Google

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    Javascript alert issue.
    « on: November 28, 2009, 06:59:20 PM »
    Why does this work?
    Code: [Select]
    <html>
    <head>
    <script type="text/javascript">
    function ale_rt()
    {
    alert("I am an alert box!");
    }
    </script>
    </head>
    <body>

    <input type="button" onclick="ale_rt()" value="Show alert box" />

    </body>
    </html>    But not this?
    Code: [Select]
    <html>
    <head>
    <script type="text/javascript">
    function alert()
    {
    alert("I am an alert box!");
    }
    </script>
    </head>
    <body>

    <input type="button" onclick="alert()" value="Show alert box" />

    </body>
    </html>
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      Re: Javascript alert issue.
      « Reply #1 on: November 28, 2009, 07:13:33 PM »
      Same with the confirm command.
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      kpac

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      Re: Javascript alert issue.
      « Reply #2 on: November 29, 2009, 04:56:20 AM »
      You cannot give any function the same name as a predefined JS function, like alert, confirm, and a bunch more.
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        Re: Javascript alert issue.
        « Reply #3 on: November 29, 2009, 09:27:25 AM »
        Ok, yea I guessed that might be it, I'll have to find a list of predefined functions then...
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        kpac

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        Re: Javascript alert issue.
        « Reply #4 on: November 29, 2009, 10:45:49 AM »
        You'll be able to guess them after a while. Here: http://javascript.about.com/library/blreserved.htm
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          Re: Javascript alert issue.
          « Reply #5 on: November 29, 2009, 01:31:01 PM »
          Alright thanks. Another question... how do I go about actully practicing Javascript? Like I'm going through the tutorial at w3schools, but that doesn't mean I actually "know it" or can use it efficiently.

          I need some way to practice it... any suggestions?
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          kpac

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          Re: Javascript alert issue.
          « Reply #6 on: November 29, 2009, 02:14:13 PM »
          Ahhh......

          * thinks *

          Do you ever go to a site and wonder, how did they do that?
          Well the best way to learn is to cheat - look at source code of the site. Usually CTRL+U.
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            Re: Javascript alert issue.
            « Reply #7 on: November 29, 2009, 02:15:19 PM »
            haha okay
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