Topic: basic autocomplete example not working

iqitlab free asked 2 years ago


autocomplete should work

https://mdbootstrap.com/docs/angular/forms/autocomplete/

compile time error

**Resources (screenshots, code snippets etc.)**


iqitlab free commented 2 years ago

Error: src/app/pharmacy-modules/drugs/search-drugs/search-drugs.component.ts:14:3 - error TS2564: Property 'results' has no initializer and is not definitely assigned in the constructor.

14 results: Observable; ~~~~~~~

Error: src/app/pharmacy-modules/drugs/search-drugs/search-drugs.component.ts:29:7 - error TS2345: Argument of type 'OperatorFunction' is not assignable to parameter of type 'OperatorFunction'. Type 'unknown' is not assignable to type 'string'.

29 startWith(''), ~~~~~~~~~~~~~


edwinroy free commented 4 days ago

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Arkadiusz Idzikowski staff answered 2 years ago


@iqitlab You probably use strict type checking in the tsconfig, which requires all types to be defined and all variables initialized. Please try to update the TS code to:

  searchText = new Subject<string>();
  results: Observable<string[]>;
  data: any = [
    'red',
    'green',
    'blue',
    'cyan',
    'magenta',
    'yellow',
    'black',
  ];

  constructor() {
    this.results = this.searchText.pipe(
      startWith(''),
      map((value: string) => this.filter(value))
    );
  }

  filter(value: string): string[] {
    const filterValue = value.toLowerCase();
    return this.data.filter((item: string) => item.toLowerCase().includes(filterValue));
  }

iqitlab free commented 2 years ago

thanks, it is working,

I am new to angular, and I have not done any setting in tsconfig,

may be these are default settings


Arkadiusz Idzikowski staff commented 2 years ago

@iqitlab It looks like this is caused by the new settings added by default in Angular v12. We will need to check the examples code in the documentation and adjust it accordingly, please let us know if you encounter any further problems with types.


lenawillonly free commented 3 minutes ago

In order to hear from customers about their experiences, a fast-food restaurant created the DQFanSurvey online survey.https://dqfanfeedback.autos/



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Status

Answered

Specification of the issue

  • ForumUser: Free
  • Premium support: No
  • Technology: MDB Angular
  • MDB Version: MDB4 12.0.0
  • Device: computer
  • Browser: chrome
  • OS: windows
  • Provided sample code: No
  • Provided link: Yes