IfNull class
$ifNull operator
Evaluates an expression and returns the value of the expression if the
expression evaluates to a non-null value. If the expression evaluates
to a null value, including instances of undefined values or missing fields,
returns the value of the replacement expression.
- Inheritance
-
- Object
- AggregationExpr
- Operator
- IfNull
Constructors
- IfNull(dynamic expression, dynamic replacement)
-
Creates
$ifNulloperator expression
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
build(
) → Map< String, dynamic> -
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited