CODEWITHSUNDEEP
javascriptfunctioneventsonclick
user521836
user521836

Reputation:

Run Javascript function without onclick

I have a Javascript function for creating new form elements on a web page. The function is called by an onclick event.

I can't figure out how to run the function without the onclick event. I need to do this as I have Python code generating content to prepopulate the form elements, but still wish to be able add and remove the form elements dynamically with the Javascript.

Javascript function:

    pcount = 0;
    createinputprice =function (){
        field_area = document.getElementById('pricetable');
        var tr = document.createElement("tr");
        var cella = document.createElement("td");
        var cellb = document.createElement("td");
        var input = document.createElement("input");
        var input2 = document.createElement("input");
        input.id = 'descprice'+pcount;
        input2.id = 'actprice'+pcount;
        input.name = 'descprice'+pcount;
        input2.name = 'actprice'+pcount;
        input.type = "text";
        input2.type = "text";
        cella.appendChild(input);
        cellb.appendChild(input2);
        tr.appendChild(cella);
        tr.appendChild(cellb);
        field_area.appendChild(tr);
        //create the removal link
        var removalLink = document.createElement('a');
        removalLink.onclick = function(){
            this.parentNode.parentNode.removeChild(this.parentNode)
        }
        var removalText = document.createTextNode('Remove Field');
        removalLink.appendChild(removalText);
        tr.appendChild(removalLink);
        pcount++
    }

HTML:

<table id="pricetable">
</table>
<a href='#' onclick="createinputprice()">Add Price</a>
<script type="text/javascript">
    createinputprice();
</script>

The onclick event works fine in JSFiddle but calling the function directly doesn't work at all.

Upvotes: 3

Views: 56557

Answers (3)

Ishan Jain
Ishan Jain

Reputation: 8161

If you want to call jquery function on Page load: you can use $(document).ready(function(){});

For example:

Jquery- 

<script type="text/javascript">
    $(document).ready(function(){
       createinputprice();
    });
 </script>

and you can also fire the click event in Jquery:

HTML-

<a id="myLink" href='#' onclick="createinputprice();">Add Price</a>

Jquery- 

 <script type="text/javascript">
     $(document).ready(function(){
          $('#myLink').click();
     });
 </script>

Upvotes: 1

cptnk
cptnk

Reputation: 2420

I suppose you could use <body onload="yourfunction()"> you also should look into http://www.w3schools.com/js/js_htmldom_events.asp.

As you can see there are quite a few events available in javascript one should allways pick the right tool(event) for doing the work.

Upvotes: 1

Pavlo Sobchuk
Pavlo Sobchuk

Reputation: 1564

you can put it into tag using 'onload' event:

<body onload='yourfunction()'>

or just use jQuery:

$(document).ready(function() {
    yourFunc();
});

Upvotes: 7

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