I am unable to display the count in an alert()

Question

I have a written a sample html

<html>
<head>
<title>Demo</title>
</head>
<body>

<h1> Event <h1>

/* <p> <a onmouseover = "alert('Pop  up window text')">  </a></p    
<p> <a href="http://www.google.com" onmouseover='++count; alert ("Moved")'> jjj</a></p>

</body>
</html>

But i am unable to display the count in alert can any one help me

score 3 · Answer 1 · edited May 23 '17 at 11:48

3

Because the "count" variable isn't declared, a new (local) variable will be instantiated each time the onmouseover event triggers. Change to:

<script type="text/javascript">
   var count = 0;
</script>
<h1> Event <h1>

<p> <a onmouseover = "alert('Pop  up window text, count:' + count)"> aaa </a></p    
<p> <a href="http://www.google.com" onmouseover="++count;"> jjj</a></p>

</body>
</html>

also, you seem to have a random /* in the demo you gave - check that your real code doesn't have something unexpectedly commented out.

You may find this question has some useful answers - so that you understand what's gone wrong this time :)

edited May 23 '17 at 11:48

Community

1
1

answered May 30 '11 at 09:55

Nathan

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your onmouseover has quotes that are wrong. This works: http://jsfiddle.net/g4ReE/ – Nathan May 30 '11 at 10:03
Add 'here' between the first and tags. There's likely either nothing to hover over, or you haven't been finding it. – eyesathousand May 30 '11 at 10:05

score 3 · Accepted Answer · answered May 30 '11 at 10:04

Check out this fiddle ive worked with your code only

http://jsfiddle.net/xf5gE/

Here is what i did

<html>
    <head>
        <script>
            var count = 0; 
        </script>
    </head>
<body>
<h1> Event <h1>
<p> <a onmouseover = "alert('Pop  up window text')">  </a></p>   
    <p> <a href="http://www.google.com" onmouseover='alert ("Moved :: Count = "+count); ++count'> jjj</a></p>

</body>
</html>

score 0 · Answer 3 · answered May 30 '11 at 09:54

0

You can just do

alert(count);

to show the value of "count" in an alert box

answered May 30 '11 at 09:54

Tobias

7,238
10
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77

score 0 · Answer 4 · answered May 30 '11 at 09:57

0

You need to initialize the count var before using the ++ statement.

Take a look at this : http://jsfiddle.net/92QQ4/

answered May 30 '11 at 09:57

VAShhh

3,494
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the declaration of the count variable needs to be outside that inline bit of js else it is reset every time, and therefore fails to count; – eyesathousand May 30 '11 at 10:03

eyesathousand · Answer 5 · 2011-05-30T10:08:19.037

You need to declare count and initialise it inside a code block

I would put '++count; alert("Moved")' into a separate function. I guess it's personal preference but I wouldn't have a multiple statement inline fragment of code.

Also you should use javascript: inside the tags to tell the browser its javascript. The browser will run without but it is probably screaming horrible things about your code in its error logs.

I am unable to display the count in an alert()

5 Answers5