AsyncValidatorFn vs AsyncValidator

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Long Field

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Mar 6, 2019, 6:37:17 PM3/6/19

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Hi All

Notice there are two interface for AsyncValidator what's difference?

Cheers!

Tito

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Mar 6, 2019, 9:23:11 PM3/6/19

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https://angular.io/api/forms/AsyncValidatorFn

https://angular.io/api/forms/AsyncValidator

the latter looks to be more robust than the first ?

Long Field

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Mar 7, 2019, 4:01:53 AM3/7/19

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Long Field

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Mar 7, 2019, 4:03:54 AM3/7/19

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Check this:

https://twitter.com/LongLongfld/status/1103447650597138433

Using AsyncValidatorFn we create asynchronous (async) validator functions that is used with FormControl in reactive form.

Using AsyncValidator we create async validator directive. NG_ASYNC_VALIDATORS is used as provider with multi: true in our async validator directive.

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