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JavaScript Angular Basics Angular Basic Forms Submitting Form Data

function parameter type

in the entry-comment-form.component.ts. We have an @Output function for eventEmitter, named "onCommentAdded". In the video, it has a parameter {name: string; comment: string}. Meantime, we have a "onSubmit" function to trigger the event with a local variable "comment" which has a structure {name: this.name, comment: this.comment}. I wonder why the one uses " ; " to separate two properties of an object, and the other uses " , ".

Thank you very much for your look.