javascript：锚标签问题

Question

function main(){

var delImage=document.createElement("img"); 
delImage.setAttribute("alt","Edit"); 
delImage.setAttribute("src","drop.png");

var position=newRow.rowIndex;
var typeElem=document.createElement("a");
typeElem.setAttribute("name","delete");  
typeElem.setAttribute("href","#");
typeElem.appendChild(delImage);
typeElem.setAttribute('onclick',"delete(position)");

newRow.insertCell(lastCell).appendChild(typeElem);

}

function delete(pos){
alert(pos);
}

i am not able to call the delete function when anchor tag was clicked...what can i want to change to achieve this?

Answer 1

Try

typeElem.onclick = function(){
    delete(position);
};

and better use a more meaningful name like deletePosition or something like that

Answer 2

Try changing:

typeElem.setAttribute('onclick',"delete(position)");

to

typeElem.setAttribute('onclick',"delete(" + position + ")");

Answer 3

IE handles setAttribute differently to other browsers, particularly event handlers attributes. For this reason and for the sake of neater code it's much easier to avoid using setAttribute where DOM properties already exist, which generally work uniformly across browsers. Also, avoid using functions named after operators in JavaScript. Specifically in this case I'd rename the delete() function.

function main() {
    var delImage = document.createElement("img");
    delImage.alt = "Edit";
    delImage.src = "drop.png";

    var position = newRow.rowIndex;
    var typeElem = document.createElement("a");
    typeElem.name = "delete";
    typeElem.href = "#";
    typeElem.appendChild(delImage);
    typeElem.onclick = function() {
        doDelete(position);
    };
    newRow.insertCell(lastCell).appendChild(typeElem);
    typeElem = null;
}

function doDelete(pos){
    alert(pos);
}