Challenge: Abstract Pattern
In this challenge, you have to implement the abstract pattern to solve the given problem.
We'll cover the following
Problem statement
In this challenge, you have the abstract constructor function Loans
. There are three types of loans that can be given:
-
HomeLoan
-
StudentLoan
-
PersonalLoan
You need to implement Loans
such that it decides which loan instance to instantiate, given the input parameters. Implement a function getloan
for this purpose. getloan
should take the following parameters:
-
type
: type of loan -
amount
: amount of the loan -
duration
: duration of the loan
All the three loans mentioned above have the following properties:
-
amount
: the amount of loan required (in dollars) -
duration
: the duration of time (in years) for which the loan is borrowed -
interest
: the annual interest rate
The interest
is different but fixed for all three loans:
-
The
interest
onHomeLoan
is:0.08
-
The
interest
onStudentLoan
is:0.03
-
The
interest
onPersonalLoan
is:0.05
Also defined for these loans is the calculateInterest
method that calculates the simple interest on the amount
borrowed for the given duration
. Use the following formula to calculate the total interest:
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