对象字面量中的“get”是什么意思？
下面是 Chrome 开发人员工具的片段：
WebInspector.DOMStorage.prototype = {
get id()
{
return this._id;
},
get domain()
{
return this._domain;
},
get isLocalStorage()
{
return this._isLocalStorage;
},
getEntries: function(callback)
{
DOMStorageAgent.getDOMStorageEntries(this._id, callback);
},
setItem: function(key, value, callback)
{
DOMStorageAgent.setDOMStorageItem(this._id, key, value, callback);
},
removeItem: function(key, callback)
{
DOMStorageAgent.removeDOMStorageItem(this._id, key, callback);
}
}
WebInspector.DOMStorage 是一个函数，上面的代码是它的原型。对我来说最奇怪的是以下方法：get id()或get某些东西 - 我仅将其签入对象原型removeItem，< code>getEntries 和 setItem 被识别。其他人呢？
Below is a snippet from Chrome Developer's tool:
WebInspector.DOMStorage.prototype = {
get id()
{
return this._id;
},
get domain()
{
return this._domain;
},
get isLocalStorage()
{
return this._isLocalStorage;
},
getEntries: function(callback)
{
DOMStorageAgent.getDOMStorageEntries(this._id, callback);
},
setItem: function(key, value, callback)
{
DOMStorageAgent.setDOMStorageItem(this._id, key, value, callback);
},
removeItem: function(key, callback)
{
DOMStorageAgent.removeDOMStorageItem(this._id, key, callback);
}
}
WebInspector.DOMStorage is a function and in the code above are its prototypes. The most strange for me is the following method: get id() or get something - I checked that into the object prototype only removeItem, getEntries and setItem are recognized. What about the others?
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这些都是吸气剂。如果您有一个
DOMStorage实例，您可以执行以下操作：但无法分配给它（或者可以分配，但值不会更改）：
请参阅 此链接了解更多信息。只有部分浏览器支持。
Those are getters. If you have an instance of
DOMStorageyou can do:but you can't assign to it (or you can but the value doesn't get changed):
See this link for more info about it. Only some browsers support it.