JavaScript Basics
TheJavaScriptdeleteoperatorisemployedtodeleteapropertyofanobject.Afterdeletingtheactualproperty,itwon'tbeaccessibleandreturnsundefined.,Thedeleteoperatordeletesboththevalueofthepropertyandthepropertyitself.Afterdeletion,thepropertycannotbeusedbef...。參考影片的文章的如下: