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ee.ImageCollection.map
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Maps an algorithm over a collection.
Returns the mapped collection.
| Usage | Returns | ImageCollection.map(algorithm, dropNulls) | Collection |
| Argument | Type | Details | this: collection | Collection | The Collection instance. |
algorithm | Function | The operation to map over the images or features of the collection. A JavaScript function that receives an image or features and returns one. The function is called only once and the result is captured as a description, so it cannot perform imperative operations or rely on external state. |
dropNulls | Boolean, optional | If true, the mapped algorithm is allowed to return nulls, and the elements for which it returns nulls will be dropped. |
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Last updated 2023-10-06 UTC.
[null,null,["Last updated 2023-10-06 UTC."],[[["\u003cp\u003eApplies a user-defined function (algorithm) to each element within an ImageCollection.\u003c/p\u003e\n"],["\u003cp\u003eReturns a new collection containing the results of applying the algorithm to each element.\u003c/p\u003e\n"],["\u003cp\u003eOptionally allows for removing elements where the algorithm returns null values using the \u003ccode\u003edropNulls\u003c/code\u003e parameter.\u003c/p\u003e\n"]]],[],null,["# ee.ImageCollection.map\n\n\u003cbr /\u003e\n\nMaps an algorithm over a collection.\n\n\u003cbr /\u003e\n\nReturns the mapped collection.\n\n| Usage | Returns |\n|-------------------------------------------------|------------|\n| ImageCollection.map`(algorithm, `*dropNulls*`)` | Collection |\n\n| Argument | Type | Details |\n|--------------------|-------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| this: `collection` | Collection | The Collection instance. |\n| `algorithm` | Function | The operation to map over the images or features of the collection. A JavaScript function that receives an image or features and returns one. The function is called only once and the result is captured as a description, so it cannot perform imperative operations or rely on external state. |\n| `dropNulls` | Boolean, optional | If true, the mapped algorithm is allowed to return nulls, and the elements for which it returns nulls will be dropped. |"]]