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ee.Filter.evaluate
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以异步方式从服务器检索此对象的值,并将其传递给所提供的回调函数。
用法 | 返回 |
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Filter.evaluate(callback) | |
参数 | 类型 | 详细信息 |
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此:computedobject | ComputedObject | ComputedObject 实例。 |
callback | 函数 | 一种函数,形式为 function(success, failure),在服务器返回答案时调用。如果请求成功,success 实参将包含评估结果。如果请求失败,失败实参将包含错误消息。 |
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最后更新时间 (UTC):2025-07-26。
[null,null,["最后更新时间 (UTC):2025-07-26。"],[[["\u003cp\u003eRetrieves the object's value from the server and provides it to a specified callback function.\u003c/p\u003e\n"],["\u003cp\u003eUtilizes a \u003ccode\u003ecallback\u003c/code\u003e function with arguments for success (containing the result) and failure (containing an error message).\u003c/p\u003e\n"],["\u003cp\u003eApplicable to ComputedObject instances, allowing asynchronous retrieval of their values.\u003c/p\u003e\n"]]],["The `Filter.evaluate` method asynchronously fetches a `ComputedObject`'s value from the server. It utilizes a callback function to handle the response. This callback, structured as `function(success, failure)`, receives either the evaluated result in the `success` argument upon a successful request or an error message in the `failure` argument if the request fails. The method itself does not return a value. The method receives as a parameter the callback function and it needs to be invoked from an instance of a `ComputedObject`.\n"],null,["# ee.Filter.evaluate\n\n\u003cbr /\u003e\n\nAsynchronously retrieves the value of this object from the server and passes it to the provided callback function.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-----------------------------|---------|\n| Filter.evaluate`(callback)` | |\n\n| Argument | Type | Details |\n|------------------------|----------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| this: `computedobject` | ComputedObject | The ComputedObject instance. |\n| `callback` | Function | A function of the form function(success, failure), called when the server returns an answer. If the request succeeded, the success argument contains the evaluated result. If the request failed, the failure argument will contains an error message. |"]]