用另一个jQuery替换字符串的所有实例

Question

I am trying to replace all instances of a recurring string within a specific div with another using coffee script. I am not entirely sure how to do this. my HTML is:

<div id="post_delete_template" style="display:none">
    <tr>
        <td>
            <div>
                <form data-post-id="<%= current_user.id %>" data-post-id="_id_" id="post_delete__id_" action="<%= url_for post_delete_path('_id_') %>" method="DELETE"><a href="#" id="delete_post_button">Delete</a></form>
            </div>
        </td>
    </tr>
 </div>
<br />

Question is, in jquery(preferably coffee script notation) how do I replace all ' _id_ ' instances in my div block with lets say '99'?

Answer 1

if you want just a string replace with javascript with your example try this

var str1 = "abcdef_id_test";
var str2 = str1.replace(/_id_/g, '99');
alert(str2);// show abcdef99test

demo