#Loops

ORA-10639: Dump library cache during reparse loops

文档解释ORA-10639:DumplibrarycacheduringreparseloopsCause:Duringthiserroralibrarycachedumpisnecessary,soenablelibrarycachedumpifeventisset.Action:Dumpalibrarycachei...

for-in循环(for-in Loops)

转载自:http://www.cnblogs.com/TomXu/archive/2011/12/28/2286877.html 有个很重要的hasOwnProperty()方法,当遍历对象属性的时候可以过滤掉从原型链上下来的属性。 //对象varman={hands:2,legs:2,heads:...
代码星球 ·2020-04-03