refactor(checkbox): remove unused host binding for required validator #16548
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Currently the `mat-checkbox` required validator defines a host binding that adds the "required" attribute to the `mat-checkbox` host element. This is not necessary as the `required` attribute should be only added to the underlying input element (which is handled as part of the checkbox template). This unnecessary host binding seems to have been added by accident since the `CheckboxRequiredValidator` from `@angular/forms` has the same host binding. Through the difference is that the `CheckboxRequiredValidator` from `@angular/forms` is guaranteed to have native input elements as host element.
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Jul 29, 2019
…#16548) Currently the `mat-checkbox` required validator defines a host binding that adds the "required" attribute to the `mat-checkbox` host element. This is not necessary as the `required` attribute should be only added to the underlying input element (which is handled as part of the checkbox template). This unnecessary host binding seems to have been added by accident since the `CheckboxRequiredValidator` from `@angular/forms` has the same host binding. Through the difference is that the `CheckboxRequiredValidator` from `@angular/forms` is guaranteed to have native input elements as host element.
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Currently the
mat-checkboxrequired validator defines a host bindingthat adds the "required" attribute to the
mat-checkboxhost element.This is not necessary as the
requiredattribute should be only addedto the underlying input element (which is handled as part of the checkbox
template).
This unnecessary host binding seems to have been added by
accident since the
CheckboxRequiredValidatorfrom@angular/formshas the same host binding. Through the difference is that the
CheckboxRequiredValidatorfrom@angular/formsis guaranteedto have native input elements as host element.