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.TH "BSON_HAS_FIELD" "3" "Jun 04, 2021" "1.17.6" "libbson"
.SH NAME
bson_has_field \- bson_has_field()
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.SH SYNOPSIS
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.INDENT 3.5
.sp
.nf
.ft C
bool
bson_has_field (const bson_t *bson, const char *key);
.ft P
.fi
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.SH PARAMETERS
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.IP \(bu 2
\fBbson\fP: A \fBbson_t\fP\&.
.IP \(bu 2
\fBkey\fP: A string containing the name of the field to check for.
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.SH DESCRIPTION
.sp
Checks to see if key contains an element named \fBkey\fP\&. This also accepts "dotkey" notation such as "a.b.c.d".
.SH RETURNS
.sp
true if \fBkey\fP was found within \fBbson\fP; otherwise false.
.SH AUTHOR
MongoDB, Inc
.SH COPYRIGHT
2017-present, MongoDB, Inc
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