Both functions generates the RegExp that doesn't work properly when it have to test presence of more namespaces.

The two identical lines in event.remove() and event.handle():

var namespace = RegExp("(^|\\\\.)" + namespaces.slice().sort().join(".*\\
\\.") + "(\\\\.|$)");

would be:

var namespace = RegExp("(^|\\\\.)" + namespaces.slice().sort().join("\\\\.
(?:.*\\\\.)?") + "(\\\\.|$)");

• Test Case with original remove()
• Test Case with corrected remove()
• Discussion