how can i make a javascript call from one function to another in same script

Question

i want to add two number six times by looping & function calling. loop execute properly but function not execute properly. here the function may not called.please help. Thanks in advance

<html>
    <head>

        <script type="text/javascript">

        var i=10;
        for(j=1;j<=6;j++) {
            var x=fun(3,4);
            document.write(x);
            i++;
        }

        function fun(var i, var j) {
            var k=i+j;
            return k;
        }

        </script>
    </head>
    <body>
    </body>
</html>

You're writing your values in the head of the document and you have erroneous var in the function declaration. — Denys Séguret
– Denys Séguret, Commented Sep 8, 2014 at 12:06
document.write should almost never be used. If you don't know why, then it should never be used. The only good way to use document.write - stackoverflow.com/a/20436093/1435655 — m59
– m59, Commented Sep 8, 2014 at 12:08
@m59 maybe you should also explain why it should never be used or link to a resource that explains why. — Sleep Deprived Bulbasaur
– Sleep Deprived Bulbasaur, Commented Sep 8, 2014 at 12:10
@SleepDeprivedBulbasaur I disagree. That's been explained about several hundred times or more elsewhere and Google is a great tool. — m59
– m59, Commented Sep 8, 2014 at 12:11
Please learn to use the JavaScript console in your browser. It would quickly point where where your problem was. — Quentin
– Quentin, Commented Sep 8, 2014 at 12:21

Quentin · Accepted Answer · 2014-09-08 12:20:15Z

4

You have erroneous var in the function declaration ( function fun(var i, var j) ). This is a syntax error which prevents the execution of the script.

The correct syntax is function fun (i, j).

Note that you're using document.write (hopefully for the purpose of the question). That's a tricky function, which can only be executed during the initial loading of the page, and which should generally be avoided. For testing a code, the best practice is usually to use console.log instead and open the console to see the log (you may hit F12).

edited Sep 8, 2014 at 12:20

Quentin

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answered Sep 8, 2014 at 12:08

Denys Séguret

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Comments

Rasel · Accepted Answer · 2014-09-08 12:18:25Z

-1

remove var keyword from function parameter 

function fun(i,j)
    {
    var k=i+j;
    return k;

    }

answered Sep 8, 2014 at 12:18

Rasel

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1 Comment

Quentin Over a year ago

This appears to be a game of spot-the-difference, not answer. What did you change? Why should it make a difference?

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