onload event call java-script function with two parameters

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I have a java-script function which will generate buttons dynamically in my html page.
My java-script is:

JavaScript

<script type="java/script">
            
            function myFunc(target_div,num_buttons) {
                var buttons = "";
                for (var i = 0; i < num_buttons; i++) {
                    //                             added class ----------------v
                    buttons += '<input type="button" id="button_' + i + '" class="mybuttons" value="button_' + i + '"></input>';
                }
                target_div.html(buttons);
                var doButtonPress = function(i) {
                    alert(i); // I actually do something more complicated here, but it's not important now
                }

                //yes, mybuttons exist 
                $('.mybuttons').click(function() {
                    doButtonPress(this.id.replace('button_', ''));
                    //this.id.replace('button_', '') <- returns i value
                });
            }
        </script>

And in the HTML is:

HTML

<body  önload="myFunc(this,'10');">
        <form>
            <div id="mydiv" ></div>
        </form>
        
        <?php
        // put your code here
        ?>
    </body>

I don't know why this not calling the myFunc(this, '10'). Is the any problem to pass id and number by my code ?

Posted 27-Apr-13 0:20am

UL UL ALBAB

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3 solutions

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abdussalam143 · Answer 1 · 2013-04-27T01:45:00

Solution 1

First the body tag should be like this.

HTML

<body  önload="myFunc(this,'10');">

this should be like this

<body  onload="myFunc(this,'10');">

you write "önload" it should be "onload"

Posted 27-Apr-13 1:45am

abdussalam143

z284122755 · Answer 2 · 2013-04-27T02:05:00

Solution 2

add this

JavaScript

$(function(){
     $('.mybuttons').click(function() {
          doButtonPress(this.id.replace('button_', ''));
    //this.id.replace('button_', '') <- returns i value
     });
     })

Posted 27-Apr-13 2:05am

z284122755

Anshu Krishna · Answer 3 · 2013-05-21T21:10:00

Try this

JavaScript

function myFunc(target_div,num_buttons) {
	function getBtn(i) {
		var btn = document.createElement("input");
		btn.setAttribute("type","button");
		btn.setAttribute("value","button_"+i);
		btn.className = "mybuttons";
		btn.setAttribute("id","button_"+i);
		return btn;
	}
	function doButtonPress(k){
		alert(k);
	}
	for(var i=0; i<num_buttons; i++) {
		var btn = getBtn(i);
		btn.onclick = function(){
			doButtonPress(this.id.replace('button_', ''));
		}
		target_div.appendChild(btn);
	}
}

If you are adding the id and class to the button for using it with doButtonPress() only then following might be an easier solution.

JavaScript

function myFunc(target_div,num_buttons) {
	function doButtonPress(k){
		alert(k);
	}
	function getBtn(i) {
		var btn = document.createElement("input");
		btn.setAttribute("type","button");
		btn.setAttribute("value","button_"+i);
		btn.specialProperty = i; //Just add a special property
		btn.onclick = function(){
			doButtonPress(this.specialProperty);
		}
		return btn;
	}
	for(var i=0; i<num_buttons; i++) {
		target_div.appendChild(getBtn(i));
	}
}

Accompanying HTML

HTML

<div id="mydiv" ></div>
<script type="text/javascript">
	myfunc(document.getElementById("mydiv"),10);
</script>