Javascript prints the dom tree, and javascript prints the dom.

Javascript prints the dom tree, and javascript prints the dom.

Copy and paste the following code to the console:

Function render (node, splits) {splits. tag + = '| ----'; console. log (splits. tag + node. tagName); var children = node. children; if (! Children) return; for (var I = 0, len = children. length; I <len; I ++) {var child = children [I]; var _ tag = splits. tag; render (child, splits); splits. tag = _ tag ;}}var splits = {tag: ''} var start = (new Date ()). getTime (); render (document. body, splits); var end = (new Date ()). getTime (); console. log ('cost: '+ (end-start) + 'ms ');

Source: http://blog.csdn.net/nancle/article/details/43054477