如何解析属性onclick，其中包含返回函数。 javascript

Question

I have a link which return form with different ID's, and i need to get ID number from onclick attribute

<a onclick="return package_order(14400287396);" href="javascript:;">advanced</a>
<a>doit</a>

this jquery code:

 var pack = $('a:contains("advanced")').attr("onclick");
 $('a:contains("doit")').click(function(){
    alert(pack)

and i get:

function onclick(event) {
  return package_order(14400287396);
}

but i need only id number inside() should i use regular expression to do it? or what?

Answer 1

从onclick属性中提取的“ id”是这样的：

$('a:contains("advanced")').attr("onclick").match(/\d+(?=\))/)[0]

Answer 2

you could do

var idStr = pack.split('(')[1];
var id = idStr.substring(0, idStr.length-2);

which will split that string into an array based on the first left paren, and then take the second array value, then subtract the last 2 chars