isNull method

Expr<bool> isNull()

Check if this expression is NULL.

This is equivalent to this IS NULL in SQL.

Important

This method only returns true if this is an SQL NULL, meaning:

• toExpr(null as JsonValue?).isNull() evaluates to true, and,
• toExpr(JsonValue(null) as JsonValue?).isNull() evaluates to false.

Implementation

Expr<bool> isNull() =>
    ExpressionIsNotDistinctFrom<JsonValue>(this, Expr.null$);