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ee.Dictionary.remove
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Utilizzo | Resi |
---|
Dictionary.remove(selectors, ignoreMissing) | Dizionario |
Argomento | Tipo | Dettagli |
---|
questo: dictionary | Dizionario | |
selectors | Elenco | Un elenco di nomi di chiavi o espressioni regolari di nomi di chiavi da rimuovere. |
ignoreMissing | Booleano, valore predefinito: false | Ignora i selettori che non corrispondono ad almeno una chiave. |
Esempi
Editor di codice (JavaScript)
// A dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).
var dict = ee.Dictionary({
B1: 182,
B2: 219,
B3: 443
});
print('Dictionary with selected keys removed', dict.remove(['B2', 'B3']));
print('Set ignoreMissing as true to avoid an unmatched key error',
dict.remove({selectors: ['B2', 'B3', 'Region'], ignoreMissing: true}));
Configurazione di Python
Consulta la pagina
Ambiente Python per informazioni sull'API Python e sull'utilizzo di
geemap
per lo sviluppo interattivo.
import ee
import geemap.core as geemap
Colab (Python)
# A dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).
dic = ee.Dictionary({
'B1': 182,
'B2': 219,
'B3': 443
})
print('Dictionary with selected keys removed:',
dic.remove(['B2', 'B3']).getInfo())
dic_subset = dic.remove(**{'selectors': ['B2', 'B3', 'Region'],
'ignoreMissing': True})
print('Set ignoreMissing as true to avoid an unmatched key error:',
dic_subset.getInfo())
Salvo quando diversamente specificato, i contenuti di questa pagina sono concessi in base alla licenza Creative Commons Attribution 4.0, mentre gli esempi di codice sono concessi in base alla licenza Apache 2.0. Per ulteriori dettagli, consulta le norme del sito di Google Developers. Java è un marchio registrato di Oracle e/o delle sue consociate.
Ultimo aggiornamento 2025-07-26 UTC.
[null,null,["Ultimo aggiornamento 2025-07-26 UTC."],[[["\u003cp\u003eThe \u003ccode\u003eremove()\u003c/code\u003e method returns a new dictionary with the specified keys removed from the original dictionary.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eselectors\u003c/code\u003e argument accepts a list of key names or regular expressions to identify the keys to be removed.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eignoreMissing\u003c/code\u003e, when set to true, prevents errors if any of the specified selectors do not match existing keys in the dictionary.\u003c/p\u003e\n"]]],["The `Dictionary.remove()` method removes specified keys from a dictionary. It accepts a list of keys or regular expressions (`selectors`) to remove. Setting `ignoreMissing` to `true` prevents errors if a key in the `selectors` list isn't found. The method returns a new dictionary with the specified keys removed. Examples show how to remove keys, and use `ignoreMissing` in both Javascript and Python, and both examples remove the `B2` and `B3` keys.\n"],null,["# ee.Dictionary.remove\n\nReturns a dictionary with the specified keys removed.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|---------------------------------------------------|------------|\n| Dictionary.remove`(selectors, `*ignoreMissing*`)` | Dictionary |\n\n| Argument | Type | Details |\n|--------------------|-------------------------|---------------------------------------------------------------------|\n| this: `dictionary` | Dictionary | |\n| `selectors` | List | A list of keys names or regular expressions of key names to remove. |\n| `ignoreMissing` | Boolean, default: false | Ignore selectors that don't match at least 1 key. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// A dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).\nvar dict = ee.Dictionary({\n B1: 182,\n B2: 219,\n B3: 443\n});\n\nprint('Dictionary with selected keys removed', dict.remove(['B2', 'B3']));\n\nprint('Set ignoreMissing as true to avoid an unmatched key error',\n dict.remove({selectors: ['B2', 'B3', 'Region'], ignoreMissing: true}));\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\n# A dictionary (e.g. results of ee.Image.reduceRegion of an S2 image).\ndic = ee.Dictionary({\n 'B1': 182,\n 'B2': 219,\n 'B3': 443\n})\n\nprint('Dictionary with selected keys removed:',\n dic.remove(['B2', 'B3']).getInfo())\n\ndic_subset = dic.remove(**{'selectors': ['B2', 'B3', 'Region'],\n 'ignoreMissing': True})\nprint('Set ignoreMissing as true to avoid an unmatched key error:',\n dic_subset.getInfo())\n```"]]