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  1. #1
    SitePoint Wizard
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    Stumped on simple alert() message creation

    I'm seeking to advance my knowledge of Javascript with a book. But I can't figure out why the alert() message does not fire:

    Code:
    <script type="text/Javascript">
    var result = 2 * 4;
    var message = "2 times 4 = " result;
    alert(message);	
    </script>
    Steve Husting

  2. #2
    Non-Member
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    You have two previous instructions. Which one do you think is the wrong one?

    The first one evaluates to a number: 2*4. The second one evaluates to a... what?

  3. #3
    SitePoint Wizard
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    Here is how I understand it:

    var result = 2 * 4; // this should give me 8.
    var message = "2 times 4 = " result; // this should give me the string of 2 times 4 and concatenate the result of 8.
    alert(message); // the var above of string and "8" should appear in the alert box.
    Steve Husting

  4. #4
    Gre aus'm Pott gold trophysilver trophybronze trophy
    Pullo's Avatar
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    Hi there,

    The concatenation is wrong. You're missing an operator

    Code:
    var message = "2 times 4 = " <something missing here> result;

  5. #5
    SitePoint Wizard
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    I see it! I need a plus sign.

    var result = 2 * 4;
    var message = "2 times 4 = " + result;
    alert(message);

    Thank you very much!
    Steve Husting

  6. #6
    Gre aus'm Pott gold trophysilver trophybronze trophy
    Pullo's Avatar
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    No probs


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