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ee.Number.aside
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
调用一个函数，将此对象作为第一个实参传递，并返回自身。方便（例如，在调试时）：
var c = ee.ImageCollection('foo').aside(print)
.filterDate('2001-01-01', '2002-01-01').aside(print, 'In 2001')
.filterBounds(geom).aside(print, 'In region')
.aside(Map.addLayer, {min: 0, max: 142}, 'Filtered')
.select('a', 'b');
返回同一对象，用于链式调用。
| 用法 | 返回 |
|---|
Number.aside(func, var_args) | ComputedObject |
| 参数 | 类型 | 详细信息 |
|---|
此：computedobject | ComputedObject | ComputedObject 实例。 |
func | 函数 | 要调用的函数。 |
var_args | VarArgs<Object> | 要传递给函数的任何额外实参。 |
示例
代码编辑器 (JavaScript)
// Print a message when constructing an ee.Number.
var eeNum = ee.Number(10).aside(print, 'An ee.Number was defined');
Python 设置
如需了解 Python API 和如何使用 geemap 进行交互式开发，请参阅
Python 环境页面。
import ee
import geemap.core as geemap
Colab (Python)
def print_result(val, message):
"""A print function to invoke with the aside method."""
print(val.getInfo())
print(message)
# Print a message when constructing an ee.Number.
ee_num = ee.Number(10).aside(print_result, 'An ee.Number was defined')
如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2025-07-25。
[null,null,["最后更新时间 (UTC)：2025-07-25。"],[[["\u003cp\u003eThe \u003ccode\u003easide()\u003c/code\u003e function allows calling a specified function with the current object as the first argument for debugging or display purposes without interrupting the method chain.\u003c/p\u003e\n"],["\u003cp\u003eIt accepts a function (\u003ccode\u003efunc\u003c/code\u003e) and any additional arguments (\u003ccode\u003evar_args\u003c/code\u003e) to be passed to that function, executing the function but returning the original object.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003easide()\u003c/code\u003e can be used with various Earth Engine objects like \u003ccode\u003eee.ImageCollection\u003c/code\u003e and \u003ccode\u003eee.Number\u003c/code\u003e for inserting actions like printing values or adding layers to the map within a processing chain.\u003c/p\u003e\n"],["\u003cp\u003eThe function facilitates debugging and visualizing intermediate steps within complex Earth Engine workflows by enabling the execution of side-effects without altering the primary processing flow.\u003c/p\u003e\n"]]],["The `aside` function, applicable to `ComputedObject` instances, executes a provided function (`func`) with the object as the initial argument, along with any additional `var_args`. It returns the original object, enabling method chaining. This is useful for debugging or applying side effects during object manipulation. Example use cases include printing intermediate states, such as the result of filtering, or adding data to a map, all while continuing to build up on the same object.\n"],null,["# ee.Number.aside\n\n\u003cbr /\u003e\n\nCalls a function passing this object as the first argument, and returning itself. Convenient e.g. when debugging:\n\n\u003cbr /\u003e\n\nvar c = ee.ImageCollection('foo').aside(print)\n\n.filterDate('2001-01-01', '2002-01-01').aside(print, 'In 2001')\n\n.filterBounds(geom).aside(print, 'In region')\n\n.aside(Map.addLayer, {min: 0, max: 142}, 'Filtered')\n\n.select('a', 'b');\n\nReturns the same object, for chaining.\n\n| Usage | Returns |\n|--------------------------------|----------------|\n| Number.aside`(func, var_args)` | ComputedObject |\n\n| Argument | Type | Details |\n|------------------------|-------------------|----------------------------------------------|\n| this: `computedobject` | ComputedObject | The ComputedObject instance. |\n| `func` | Function | The function to call. |\n| `var_args` | VarArgs\\\u003cObject\\\u003e | Any extra arguments to pass to the function. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Print a message when constructing an ee.Number.\nvar eeNum = ee.Number(10).aside(print, 'An ee.Number was defined');\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\ndef print_result(val, message):\n \"\"\"A print function to invoke with the aside method.\"\"\"\n print(val.getInfo())\n print(message)\n\n# Print a message when constructing an ee.Number.\nee_num = ee.Number(10).aside(print_result, 'An ee.Number was defined')\n```"]]
