摘要：
代码转自 codewars：http://www.codewars.com/var data = { id: 1, items: [ {id: 2}, {id: 3, items: [ {id: 4}, {id: 5} ]} ]}function extractIds(data){ var arr = []; if(data.id){ arr.push(data.id); } if(data.items){ for(var i in data.items){ var subData = extractIds(data... 阅读全文