typescript枚舉類型編譯後代碼技巧

var Tristate; (function(Tristate) { Tristate[(Tristate['False'] = 0)] = 'False'; Tristate[(Tristate['True'] = 1)] = 'True'; Tristate[(Tristate['Unknown'] = 2)] = 'Unknown'; })(Tristate || (Trist

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