Requiring a checkbox to be checked

Question

I want a button to be disabled until a checkbox has been checked using a FormBuilder for Angular. I don\'t want to explicitly check the value of the checkbox and would prefe

Answer 1

Since Angular 2.3.1 you can use Validators#requiredTrue:

Component:

this.formGroup = this.formBuilder.group({
  cb: [false, Validators.requiredTrue]
});

Template:

   Accept it
  

    Required
  
  

  

    Submit
  

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