Question

136

convert array to string in javascript

rated 0 times [ 143] [ 7] / answers: 1 / hits: 15708 / 12 Years ago, sun, july 29, 2012, 12:00:00

I want the text to be printed without commas.

<html>

<head>

<title>Reverse</title>

</head>

<body>

<form name=rev>

Enter the string : <input type=text name=str/>

<input type=button value=click onclick=rev1() /><br>

reverse of given string : <input type=text name=res/>

</form>

<script type=text/JavaScript>

function rev1(){

var a=rev.str.value;

var b=[];

var i,j=0;

    for(i=a.length-1;i>=0;i--){

    b[j]=a[i];

    j++

}

//rev.res.value=b;

alert(b);

}

</script>

</body>

</html>

If I give the input as abc I am getting an output as c,b,a, but I want it as cba.

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blaynetheoi

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3 Years ago

answered 12 Years ago victorr · Accepted Answer

You may reverse your string using javascript built-in functions:

        <html>

        <head>

        <title>Reverse</title>

        </head>

        <body>

        <form name=rev>

        Enter the string : <input type=text name=str/>

        <input type=button value=click onclick=rev1() /><br>

        reverse of given string : <input type=text name=res/>

        </form>

        <script type=text/JavaScript>

            function rev1(){

                var a=rev.str.value;

                var b=a.split().reverse().join();

                //rev.res.value=b;

                alert(b);

            }

        </script>

        </body>

        </html>

You may also transfer join your array elements to become a string

        <html>

        <head>

        <title>Reverse</title>

        </head>

        <body>

        <form name=rev>

        Enter the string : <input type=text name=str/>

        <input type=button value=click onclick=rev1() /><br>

        reverse of given string : <input type=text name=res/>

        </form>

        <script type=text/JavaScript>

            function rev1(){

                var a=rev.str.value;

                var b=[];

                var i,j=0;

                    for(i=a.length-1;i>=0;i--){

                    b[j]=a[i];

                    j++

                }

                //rev.res.value=b;

                alert(b.join());

            }

        </script>

        </body>

        </html>