Enhancement/discussion: change in flow based on answers. about inquirer.js HOT 4 CLOSED

Hi, Inquirer prompt offer such a possibility through the when function. https://github.com/SBoudrias/Inquirer.js#question

For example:

inquirer.prompt([{
  name: "food",
  type: "list",
  message: "What do you want",
  choices: [ "Calzone", "Pizza", "Sub" ]
}, {
  name: "toppings",
  type: "list",
  when: function( answers ) {
    // Only run if user answered Pizza to the first prompt
    return answers.food === "Pizza";
  },
  // etc
}]);

Does it work for your use case?

from inquirer.js.

Choosing Calzone (or Pizza or Sub) returns exception generated from base.js:83
throw new Error("You must provide a " + name + " parameter");

So based on that no.

For the use case as far as I see it, you want to be able to dog leg to another set of questions (like asking what you want on your calzone) then go back to asking any further questions. So really what is needed (thinking out loud) is a way to diverge to another question set and come back. Also you need to be able to specify those other questions in a reasonably easy to maintain manner. You have the "when" but what about the "then", is what I guess I'm saying.

from inquirer.js.

That's because I haven't feed every required field in my example (so I put // etc... to be filled with your logic).

I see what you mean, but this is 100% possible with the current when implementation. It may not feel like the cleanest way to you, but it helps maintaining long prompt array without entering a nested hell. Plus, it keeps the Inquirer API surface minimal (easier to read and understand).

Try it out with when, it'll work out. If you need help down the road, just wave an arm over here and I'll be happy to land a hand (You may also find me on #yeoman on IRC under the pseudo sboudrias).

from inquirer.js.

I think this should be in the documentation. I've also found a separate issue opened for this purpose #1081

from inquirer.js.