Nov 19, 2014
Hadoop build-in counters are often the starting point of diagnose Hadoop jobs, understanding the meaning of these counters and their relationships is the key.
Nov 11, 2014
Cross-origin resource sharing is commonly used by modern web applications to make cross domain requests for script, image or data.
Nov 4, 2014
Constructor in JavaScript can be a source of confusion for beginners, this confusion is inherited from its original language design.