KEY TAKEWAYSChinese e-commerce giant JD.com on Thursday reported second-quarter profits nearly doubled from a year ago.The strong results come amid intense competition to draw cautious consumers as China's economy slows.JD.com’s American depositary receipts jumped in early trading Thursday following the release. Chinese e-commerce giant JD.com (JD) on Thursday reported second-quarter profits nearly doubled from a year ago, at a time when China’s online retailers are competing to draw cautious customers as t ...