Disable button when input is empty in Angular 2

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谎友^
谎友^ 2021-01-04 02:37

I want to check whether the input is empty.

  • If not empty, enable the submit button.
  • If empty, disable the submit button.

I tried

3条回答
  •  臣服心动
    2021-01-04 03:10

    In this case, I would leverage form validators. I would add the "required" validation on your input and use the global state of your form to disable / enable your button.

    With the template-driven approach, there is no code to add in your component, only stuff in its template...

    Here is sample below:

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