Check changes in textarea as we edit the text

I have been trying to check the null fields in my application. I need to know the method which fires up as soon as i change the text in the textarea.

You can do something like this but it could be overkill:

Perhaps you can use ember-cp-validations - npm ??

Just use basic binding. Set the value of the box as a property, and use a computed property that depends upon that property.

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