Run Javascript function without onclick
Question
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.
3 answers
solution1
4 2013-09-26 13:40:36
you can put it into tag using 'onload' event:
<body onload='yourfunction()'>
or just use jQuery:
$(document).ready(function() {
yourFunc();
});
solution2
0 2013-09-26 13:43:14
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.
solution3
0 2013-09-26 13:43:21
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>
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