You might not need jQuery (2014)
It's ironic that there's probably no bigger sales pitch for jQuery than this site.<p>In every single example, the jQuery version is basically one or two lines of code, versus 10-15 lines for the alternative. (and the jQ version seems significantly easier on the eyes as well.)<p>Also, jQuery supports promises and has for quite a while.<p>This page hasn't aged well. I've come full circle and am now using jQuery again.