How to resolve 'Property 'foo' has no initializer and is not definitely assigned in the constructor' when using @Input decorator?









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How would I correctly initialize a property that has an @Input decorator without removing strict typing?



Code below is what showing this warning



@Input
foo: FormGroup;









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    up vote
    1
    down vote

    favorite












    How would I correctly initialize a property that has an @Input decorator without removing strict typing?



    Code below is what showing this warning



    @Input
    foo: FormGroup;









    share|improve this question

























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      How would I correctly initialize a property that has an @Input decorator without removing strict typing?



      Code below is what showing this warning



      @Input
      foo: FormGroup;









      share|improve this question















      How would I correctly initialize a property that has an @Input decorator without removing strict typing?



      Code below is what showing this warning



      @Input
      foo: FormGroup;






      angular typescript






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      edited yesterday

























      asked yesterday









      Shane

      1689




      1689






















          2 Answers
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          up vote
          2
          down vote



          accepted










          There is no way to define a decorator such that Typescript will know it will perform field initialization. The only option is to add a definite assignment modifier to the field:



          @Input
          foo!: FormGroup;


          This will disable the check for this field alone. You can read more about this assertion here






          share|improve this answer



























            up vote
            1
            down vote













            Props need to have an exclamation mark appended, i.e. foo!: FormGroup.



            Related Issue






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              2 Answers
              2






              active

              oldest

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              2 Answers
              2






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes








              up vote
              2
              down vote



              accepted










              There is no way to define a decorator such that Typescript will know it will perform field initialization. The only option is to add a definite assignment modifier to the field:



              @Input
              foo!: FormGroup;


              This will disable the check for this field alone. You can read more about this assertion here






              share|improve this answer
























                up vote
                2
                down vote



                accepted










                There is no way to define a decorator such that Typescript will know it will perform field initialization. The only option is to add a definite assignment modifier to the field:



                @Input
                foo!: FormGroup;


                This will disable the check for this field alone. You can read more about this assertion here






                share|improve this answer






















                  up vote
                  2
                  down vote



                  accepted







                  up vote
                  2
                  down vote



                  accepted






                  There is no way to define a decorator such that Typescript will know it will perform field initialization. The only option is to add a definite assignment modifier to the field:



                  @Input
                  foo!: FormGroup;


                  This will disable the check for this field alone. You can read more about this assertion here






                  share|improve this answer












                  There is no way to define a decorator such that Typescript will know it will perform field initialization. The only option is to add a definite assignment modifier to the field:



                  @Input
                  foo!: FormGroup;


                  This will disable the check for this field alone. You can read more about this assertion here







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered yesterday









                  Titian Cernicova-Dragomir

                  50.4k33148




                  50.4k33148






















                      up vote
                      1
                      down vote













                      Props need to have an exclamation mark appended, i.e. foo!: FormGroup.



                      Related Issue






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                        up vote
                        1
                        down vote













                        Props need to have an exclamation mark appended, i.e. foo!: FormGroup.



                        Related Issue






                        share|improve this answer






















                          up vote
                          1
                          down vote










                          up vote
                          1
                          down vote









                          Props need to have an exclamation mark appended, i.e. foo!: FormGroup.



                          Related Issue






                          share|improve this answer












                          Props need to have an exclamation mark appended, i.e. foo!: FormGroup.



                          Related Issue







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered yesterday









                          Sajeetharan

                          112k27153208




                          112k27153208



























                               

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