How to call a JavaScript function within an HTML body

I have a JavaScript function that fills a table:

<script>

var col1 = ["Full time student checking (Age 22 and under) ", "Customers over age 65", "Below  $500.00"];
var col2 = ["None", "None", "$8.00"];

function createtable() {
    <!--To fill the table with javascript-->
    for (var j = 0; j < col1.length; j++) {
        if (j % 2 == 0) {
            document.write("<tr><td>" + col1[j] + " </td>");
            document.write("<td>" + col2[j] + "</td></tr>");
        } else {
            document.write("<tr  bgcolor='#aeb2bf'><td>" + col1[j] + " </td>");
            document.write("<td>" + col2[j] + "</td></tr1>");
        }
    }
}
</script>

I want to execute it within the HTML body. I have tried the following, but it doesn't create the table.

<table>
    <tr>
        <th>Balance</th>
        <th>Fee</th>        
    </tr>
      createtable();
</table>

How I can execute this function within the HTML body?

Solution 1:

Try wrapping the createtable(); statement in a <script> tag:

<table>
        <tr>
            <th>Balance</th>
            <th>Fee</th>

        </tr>
        <script>createtable();</script>
</table>

I would avoid using document.write() and use the DOM if I were you though.

Solution 2:

First include the file in head tag of html , then call the function in script tags under body tags e.g.

Js file function to be called

function tryMe(arg) {
    document.write(arg);
}

HTML FILE

<!DOCTYPE html>
<html>
<head>
    <script type="text/javascript" src='object.js'> </script>
    <title>abc</title><meta charset="utf-8"/>
</head>
<body>
    <script>
    tryMe('This is me vishal bhasin signing in');
    </script>
</body>
</html>

finish

How to call a JavaScript function within an HTML body

Solution 1:

Solution 2:

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