Here's the JavaScript equivalent: var i = null; var j = i || 10; //j is now 10. Note that the logical operator || does not return a boolean ... ... <看更多>

In JavaScript, default function parameters allow you to initialize named parameters with default values if no values or undefined are passed into the ... ... <看更多>

So if attributing this default in case of a null value result in a ... Dart, unlike javascript, do not (or at least is not supposed to) make ... ... <看更多>

Before dealing with your question, I'd like to point out that you probably want to use empty() instead of comparing with an empty string and that if you ... ... <看更多>