OptionalChainingExpressioninterface OptionalChainingExpression extends ExpressionBase {base: MemberExpression | OptionalChainingCall;questionDotToken: Span;type: "OptionalChainingExpression";}§Extends§ExpressionBase[src]§Properties§base: MemberExpression | OptionalChainingCall[src]Call expression or member expression. §questionDotToken: Span[src]§type: "OptionalChainingExpression"[src]