title: Integer variable common for all sessions in node.js
body: <p>How to have an integer variable common for all client sessions in node.js and access them in client html? (that is, I need a integer variable which can be displayed in the html page and can be updated in html page. The new updated value should be displayed for other clients.)  I knew this is a silly question. But I am sorry. I am totally new to node.js and I do not have much time. I need a solution at the earliest. Thank you.</p>