How to get angulaR asynchronous variable?

Question

Angular

There is a json file, I get its contents via fetch and display the length of this array, but when I get the length, I get the error "Cannot read properties of undefined" in the console, although the list of elements and the length are still displayed, how to get rid of the error?

Answer 1

Add a question if in the template, for example: {{users?.length}}
Or assign to your default array []: public users = []
That's why it's better not to disable it