mirror of https://gitee.com/bigwinds/arangodb
20 lines
571 B
Markdown
20 lines
571 B
Markdown
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@brief checks whether a document exists
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`db._exists(document)`
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This method determines whether a document exists given its identifier.
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Instead of returning the found document or an error, this method will
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return either *true* or *false*. It can thus be used
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for easy existence checks.
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No error will be thrown if the sought document or collection does not
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exist.
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Still this method will throw an error if used improperly, e.g. when called
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with a non-document handle.
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`db._exists(document-handle)`
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As before, but instead of a document a document-handle can be passed.
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