鉴于这段代码(我得到的一个React组件的简化):constmyFn=function({otherFn=()=>{console.log('insidemyFndeclaration');return'true'}}){console.log('InsidemyFn2',otherFn());foo(otherFn);bar(otherFn);...}myFn({name:'somename',type:'sometype'});//output://insidemyFndeclaration//InsidemyFn2true我不明白那里发生了什么。这是什么构造？我指的是“myFn(