摘要：
两个数组取交集： const intersection = (a, b) => { const s = new Set(b); return [...new Set(a)].filter(x => s.has(x)); }; 用法： intersection([1, 2, 3], [4, 3, 2] 阅读全文
摘要：
#!/usr/bin/python try: from AppKit import NSWorkspace except ImportError: print "Can't import AppKit -- maybe you're running python from brew?" print 阅读全文