Hi, my name is Xie and i am new with Angular. I got this error when i tried to delete a table row. The table data is from a Json file. Here is the error message : app.component.ts (31,34): Property 'length' does not exist on type 'Observable<any[]>'. And here is my repository <https://github.com/wiraxie/JSON-Angular-CLI>. Can anyone help me solve this error? Thank you so much in advance.
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