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问题描述
我可以在这样的JavaScript对象中使用getter
I can have getter in JavaScript object like this
var member = { firstName:"XYZ", lastName:"zzz", get fullName(){ return (this.firstName + ' ' + this.lastName); } }我甚至可以像这样添加更多属性
And I can even add more properties on the fly like this
member.isGuest = true;但有没有办法可以将getter添加到现有对象中?这样的东西
But is there any way we can add getters to already existing object? Something like this
member.isGuest = get isGuest(){ return this.firstName=='Guest'; }推荐答案
尝试 defineProperty
Object.defineProperty(member, 'isGuest', { get: function() { return this.firstName=='Guest' } });更多推荐
Javascript:如何将getter添加到现有对象
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