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mini_bmob.dart
KeyBuilder<T>
exists method
exists method
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exists
method
KeyBuilder
<
T
>
exists
(
bool
exists
)
$exists 这个 Key 有值
Implementation
KeyBuilder<T> exists(bool exists) { _json['\$exists'] = exists; return this; }
mini_bmob package
documentation
mini_bmob
KeyBuilder<T>
exists method
KeyBuilder class