jQuery-更改类型=复选框，而不是在此代码中选择

Question

I have this piece of code giving me a select dropdown with its label ,

LeaveRuleAdapter.method('getFormFields', function() {
    return [
            [ "employee_can_apply", {"label":"Employees can apply for this leave type","type":"select","source":[["Yes","Yes"],["No","No"]]}]
});

I have 2 questions,

1. Is above codes are written on jquery or it's any jquery plugin ? 
2. Is there any way to include checkboxes insted of select.

( I'm a beginner in jquery, so dont mind if anything is wrong this question)

Answer 1

1. It's not jQuery

2. I don't know the code, but you could try this:

    LeaveRuleAdapter.method('getFormFields', function() { return [["employee_can_apply", {"label":"Employees can apply for this leave type","type":"checkbox"}]]});