Pass data between prompts

Question

Can i pass data between two prompts in yeoman?

Eg i've got two prompts like

{
  type: 'input',
  name: 'Name',
  message: 'Name?'
},{
  type: 'input',
  name: 'package',
  message: 'Package?',
  default: 'org.my.app.'+<prompt.name>
}

I want to show name property as default value for package? One way i can think of is:

• Show a template in default (like in example)
• Change the value later when creating the final template for user.

Another way that i tried is using when

{
  type: 'input',
  name: 'Name',
  message: 'Name?'
},{
  when: (response) => {
    this.testValue = response.Name
    return true
  },
  type: 'input',
  name: 'package',
  message: 'Package?',
  default: 'org.my.app.'+this.testValue
}

but it gives undefined even though inside the function value has been stored for in this.testValue

Is there any better way?

Answer 1

i finally found the answer. The way to achieve it is using two prompt variables and running the second one after first's promise returns

const prompt1 = [{
  type: 'input',
  name: 'Name',
  message: 'Name?'
}];

return this.prompt(prompt1).then(props => {
  const prompt2 = [{
    type: 'input',
    name: 'package',
    message: 'Package?',
    default: 'org.my.app.'+props.name
  }];

  return this.prompt(prompt2).then(props => {
   //code goes here
  });
});