How to add and remove button dynamically from particular state in impromptu?

Question

I am using impromptu for prompt and I want to add buttons dynamically on specific condition.

state0: {
    html: 'Do you want to apply changes?',
    buttons: { YES: 1, NO: 0 },
    focus: 1,
    submit: function(e, v, m, f) {
        if (v == 1) {
            e.preventDefault();
            $.prompt.goToState('state1');
            return false;
        }
        $.prompt.close();
    }
},

In this state I need 3 buttons for particular condition:
"NEWCONFIG", "YES", "NO"; and for another condition I need 2 buttons: "YES", "NO"

Answer 1

Define a button variable before initializing your impromptu as below

var buttons={};
if(condition1)
{
   buttons = { YES: 1, NO: 0 };
}
else
{
   buttons ={ NEWCONFIG:1, YES:1, NO:0};
}

then initialize impromptu

state0: {
    html: 'Do you want to apply changes?',
    buttons: buttons,
    focus: 1,
    submit: function(e, v, m, f) {
        if (v == 1) {
            e.preventDefault();
            $.prompt.goToState('state1');
            return false;
        }
        $.prompt.close();
    }
},

That's it.. Let me know if any problem!!