bson_has_field − bson_has_field()
bool bson_has_field (const bson_t *bson, const char *key);
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bson: A bson_t. |
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key: A string containing the name of the field to check for. |
Checks to see if key contains an element named key. This also accepts "dotkey" notation such as "a.b.c.d".
true if key was found within bson; otherwise false.
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