Exactly how should < be escaped in javascript footer code?

I want to place some JavaScript code in the footer area, and it contains the character < in an expression. In the Scripts in Footer code window in this plug-in, I see the error message popup saying “Special character must be escaped: [ < ].” But it’s not clear to me exact how to escape the < character. Do I surround it with square brackets (which doesn’t seem to work), as implied in the error message, or use some sort of escape character prefix? Thanks.

• This topic was modified 3 years, 9 months ago by kengr.