function classof(o) { if(o === null) { return "Null"; } if(o === undefined) { return "Undefined"; } return Object.prototype.toString.call(o).slice(8, -1); }
时间: 2024-08-06 13:48:35
function classof(o) { if(o === null) { return "Null"; } if(o === undefined) { return "Undefined"; } return Object.prototype.toString.call(o).slice(8, -1); }