`Getters` in redux-form props

Redux form provide wide list of props - http://redux-form.com/6.6.0/docs/api/Props.md/ One can find a lot of write commands, and a few constants one can read(ie form).

But there is not build in command to read value from or, for example, get current variable prefix from FormSection (to build name to read). First case can be solved via Selectors, but it will not be easy, and clear - you should combine state and form name. And you dont know form name. Second can can not be solved.

What about embedding selectors inside first-level props?

[tstirrat15]

@theKashey are you talking about a field’s other attributes, such as syncError or dirty? There are other ways of obtaining that information, such as through selectors.

[erikras]

The main reason why you need a selector rather than a this.props.get(fieldName) is that a selector will rerender your component, and the other won’t.

One of the main design goals of v6 was to allow individual fields to be rerendered without necessarily having to rerender the entire form.

For a contrived example, let’s say you want to print out “full name” in your form, so you do:

<div>{`${this.props.get('firstName')} ${this.props.get('lastName')}`}</div>

As you type into the firstName field, you would expect the Full Name <div> to change, but it won’t, because the form’s render() method is not being called on every keypress.

Make sense?