What is the term for a function used to define a getter in JavaScript?

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javascript定义一个getter方法，用于动态访问对象属性：javascriptfunction defineGetter(obj, name, getter) { Object.defineProperty(obj, name, { configurable: true, enumerable: true, get: getter });}

// github.com/expressjs/express/blob/master/lib/request.js function defineGetter(obj, name getter) { Object.defineProperty(obj, name, { configurable: true, enumerable: true, get: getter }) }