var m = new Map([[1,3],[2,2],[3,1]]); m.delete(1,2); //这样是只能删除一个键值对吧 m.has(2);
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捣麝成尘拗莲做寸
var m = new Map([[1,3],[2,2],[3,1]]); m.delete(1,2); //这样是只能删除一个键值对吧 m.has(2);