How to make a currency envelope on JavaScript

Learn how to create a currency converter in JavaScript with an example. Create a simple yet powerful tool for tracking currency changes!

Making a Currency Envelope with JavaScript

A currency envelope is a type of envelope used to store money. It is a great way to save money and keep track of budgets. With JavaScript, it is possible to create a currency envelope that can be used to store and manage finances. Here is an example of how to make a currency envelope with JavaScript.

First, we need to create a function to generate the currency envelope. This function should take two arguments, the currency denomination and the amount of money to store in the envelope. The function will return a JavaScript object that contains the currency denomination and the amount of money stored in the envelope.

function makeCurrencyEnvelope(currency, amount) {
  return {
    currency: currency,
    amount: amount
  };
};

The next step is to create a function to add money to the currency envelope. This function will take three arguments, the currency envelope, the currency denomination, and the amount of money to add to the envelope. The function should check that the currency denominations match before adding the money to the envelope. If the currency denominations match, the function should add the amount of money to the envelope and return the updated currency envelope.

function addMoneyToEnvelope(envelope, currency, amount) {
  if (envelope.currency === currency) {
    envelope.amount += amount;
  }
  return envelope;
};

Finally, we need to create a function to remove money from the currency envelope. This function will take three arguments, the currency envelope, the currency denomination, and the amount of money to remove from the envelope. The function should check that the currency denominations match before removing the money from the envelope. If the currency denominations match, the function should subtract the amount of money from the envelope and return the updated currency envelope.

function removeMoneyFromEnvelope(envelope, currency, amount) {
  if (envelope.currency === currency) {
    envelope.amount -= amount;
  }
  return envelope;
};

With these three functions, it is possible to create a currency envelope and manage the amount of money stored in it. The currency envelope can be used to store any type of currency and keep track of budgets. This can be a great way to save money and manage finances.