Budget App using HTML, CSS & JavaScript (Source Code)

Hello, today we're going to learn how to use HTML, CSS & JavaScript to create a Budget App. By following these instructions, you can simply make this Budget App in HTML, CSS & JavaScript. Simply by adhering to the procedures mentioned below, you will be able to develop this amazing Budget App.

Step 1
The HTML (Hypertext Markup Language) will help us to create the structure for the list with some necessary attributes and elements to make Budget App Project.

Step 2
Then we will use CSS (Cascading Stylesheet) which will help us to style or design the project with suitable padding and alignment in the Budget App Project.

Step 3
At last we will use JS (JavaScript) which will add a logic to make the Budget App Project functioning from the user end.

I hope you have got an idea about the project.

HTML Code for Budget App

<html lang="en">
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Budget App</title>
    <!-- Font Awesome Icons -->
    <link
      rel="stylesheet"
      href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.1.1/css/all.min.css"
    />
    <!-- Google Fonts -->
    <link
      href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;500&display=swap"
      rel="stylesheet"
    />
    <!-- Stylesheet -->
    <link rel="stylesheet" href="style.css" />
  </head>
  <body>
    <div class="wrapper">
      <div class="container">
        <div class="sub-container">
          <!-- Budget -->
          <div class="total-amount-container">
            <h3>Budget</h3>
            <p class="hide error" id="budget-error">
              Value cannot be empty or negative
            </p>
            <input
              type="number"
              id="total-amount"
              placeholder="Enter Total Amount"
            />
            <button class="submit" id="total-amount-button">Set Budget</button>
          </div>

          <!-- Expenditure -->
          <div class="user-amount-container">
            <h3>Expenses</h3>
            <p class="hide error" id="product-title-error">
              Values cannot be empty
            </p>
            <input
              type="text"
              class="product-title"
              id="product-title"
              placeholder="Enter Title of Product"
            />
            <input
              type="number"
              id="user-amount"
              placeholder="Enter Cost of Product"
            />
            <button class="submit" id="check-amount">Check Amount</button>
          </div>
        </div>
        <!-- Output -->
        <div class="output-container flex-space">
          <div>
            <p>Total Budget</p>
            <span id="amount">0</span>
          </div>
          <div>
            <p>Expenses</p>
            <span id="expenditure-value">0</span>
          </div>
          <div>
            <p>Balance</p>
            <span id="balance-amount">0</span>
          </div>
        </div>
      </div>
      <!-- List -->
      <div class="list">
        <h3>Expense List</h3>
        <div class="list-container" id="list"></div>
      </div>
    </div>
    <!-- Script -->
    <script src="script.js"></script>
  </body>
</html>

First we'll start with creating the structure of the Budget App project for that as you can see the above code we have used all the necessary elements & attributes to setup the structure. Let us know code the CSS part to add styling and aligned the tags.

CSS Code for Budget App

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}
body {
  background-color: #f7f9fd;
}
.wrapper {
  width: 90%;
  font-size: 16px;
  max-width: 43.75em;
  margin: 1em auto;
}
.container {
  width: 100%;
}
.sub-container {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3em;
}
.flex {
  display: flex;
  align-items: center;
}
.flex-space {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.wrapper h3 {
  color: #363d55;
  font-weight: 500;
  margin-bottom: 0.6em;
}
.container input {
  display: block;
  width: 100%;
  padding: 0.6em 0.3em;
  border: 1px solid #d0d0d0;
  border-radius: 0.3em;
  color: #414a67;
  outline: none;
  font-weight: 400;
  margin-bottom: 0.6em;
}
.container input:focus {
  border-color: #587ef4;
}
.total-amount-container,
.user-amount-container {
  background-color: #ffffff;
  padding: 1.25em 0.9em;
  border-radius: 0.3em;
  box-shadow: 0 0.6em 1.2em rgba(28, 0, 80, 0.06);
}
.output-container {
  background-color: #587ef4;
  color: #ffffff;
  border-radius: 0.3em;
  box-shadow: 0 0.6em 1.2em rgba(28, 0, 80, 0.06);
  margin: 2em 0;
  padding: 1.2em;
}
.output-container p {
  font-weight: 500;
  margin-bottom: 0.6em;
}
.output-container span {
  display: block;
  text-align: center;
  font-weight: 400;
  color: #e5e5e5;
}
.submit {
  font-size: 1em;
  margin-top: 0.8em;
  background-color: #587ef4;
  border: none;
  outline: none;
  color: #ffffff;
  padding: 0.6em 1.2em;
  border-radius: 0.3em;
  cursor: pointer;
}
.list {
  background-color: #ffffff;
  padding: 1.8em 1.2em;
  box-shadow: 0 0.6em 1.2em rgba(28, 0, 80, 0.06);
  border-radius: 0.6em;
}
.sublist-content {
  width: 100%;
  border-left: 0.3em solid #587ef4;
  margin-bottom: 0.6em;
  padding: 0.5em 1em;
  display: grid;
  grid-template-columns: 3fr 2fr 1fr 1fr;
}
.product {
  font-weight: 500;
  color: #363d55;
}
.amount {
  color: #414a67;
  margin-left: 20%;
}
.icons-container {
  width: 5em;
  margin: 1.2em;
  align-items: center;
}
.product-title {
  margin-bottom: 1em;
}
.hide {
  display: none;
}
.error {
  color: #ff465a;
}
.edit {
  margin-left: auto;
}
.edit,
.delete {
  background: transparent;
  cursor: pointer;
  margin-right: 1.5em;
  border: none;
  color: #587ef4;
}
@media screen and (max-width: 600px) {
  .wrapper {
    font-size: 14px;
  }
  .sub-container {
    grid-template-columns: 1fr;
    gap: 1em;
  }
}

Second comes the CSS code, which is mentioned above in that we have styled for the structure we have padded as well as aligned the Budget App project so that it is properly situated and doesn't get messy with suitable CSS elements. Now we have created the structure using HTML and styled the webpage using CSS its time to add the functionality using JavaScript in this project.

JavaScript Code for Budget App

let totalAmount = document.getElementById("total-amount");
let userAmount = document.getElementById("user-amount");
const checkAmountButton = document.getElementById("check-amount");
const totalAmountButton = document.getElementById("total-amount-button");
const productTitle = document.getElementById("product-title");
const errorMessage = document.getElementById("budget-error");
const productTitleError = document.getElementById("product-title-error");
const productCostError = document.getElementById("product-cost-error");
const amount = document.getElementById("amount");
const expenditureValue = document.getElementById("expenditure-value");
const balanceValue = document.getElementById("balance-amount");
const list = document.getElementById("list");
let tempAmount = 0;

//Set Budget Part
totalAmountButton.addEventListener("click", () => {
  tempAmount = totalAmount.value;
  //empty or negative input
  if (tempAmount === "" || tempAmount < 0) {
    errorMessage.classList.remove("hide");
  } else {
    errorMessage.classList.add("hide");
    //Set Budget
    amount.innerHTML = tempAmount;
    //Set Balance
    balanceValue.innerText = tempAmount - expenditureValue.innerText;
    //Clear Input Box
    totalAmount.value = "";
  }
});

//Function To Disable Edit and Delete Button
const disableButtons = (bool) => {
  let editButtons = document.getElementsByClassName("edit");
  Array.from(editButtons).forEach((element) => {
    element.disabled = bool;
  });
};

//Function To Modify List Elements
const modifyElement = (element, edit = false) => {
  let parentDiv = element.parentElement;
  let currentBalance = balanceValue.innerText;
  let currentExpense = expenditureValue.innerText;
  let parentAmount = parentDiv.querySelector(".amount").innerText;
  if (edit) {
    let parentText = parentDiv.querySelector(".product").innerText;
    productTitle.value = parentText;
    userAmount.value = parentAmount;
    disableButtons(true);
  }
  balanceValue.innerText = parseInt(currentBalance) + parseInt(parentAmount);
  expenditureValue.innerText =
    parseInt(currentExpense) - parseInt(parentAmount);
  parentDiv.remove();
};

//Function To Create List
const listCreator = (expenseName, expenseValue) => {
  let sublistContent = document.createElement("div");
  sublistContent.classList.add("sublist-content", "flex-space");
  list.appendChild(sublistContent);
  sublistContent.innerHTML = `<p class="product">${expenseName}</p><p class="amount">${expenseValue}</p>`;
  let editButton = document.createElement("button");
  editButton.classList.add("fa-solid", "fa-pen-to-square", "edit");
  editButton.style.fontSize = "1.2em";
  editButton.addEventListener("click", () => {
    modifyElement(editButton, true);
  });
  let deleteButton = document.createElement("button");
  deleteButton.classList.add("fa-solid", "fa-trash-can", "delete");
  deleteButton.style.fontSize = "1.2em";
  deleteButton.addEventListener("click", () => {
    modifyElement(deleteButton);
  });
  sublistContent.appendChild(editButton);
  sublistContent.appendChild(deleteButton);
  document.getElementById("list").appendChild(sublistContent);
};

//Function To Add Expenses
checkAmountButton.addEventListener("click", () => {
  //empty checks
  if (!userAmount.value || !productTitle.value) {
    productTitleError.classList.remove("hide");
    return false;
  }
  //Enable buttons
  disableButtons(false);
  //Expense
  let expenditure = parseInt(userAmount.value);
  //Total expense (existing + new)
  let sum = parseInt(expenditureValue.innerText) + expenditure;
  expenditureValue.innerText = sum;
  //Total balance(budget - total expense)
  const totalBalance = tempAmount - sum;
  balanceValue.innerText = totalBalance;
  //Create list
  listCreator(productTitle.value, userAmount.value);
  //Empty inputs
  productTitle.value = "";
  userAmount.value = "";
});

Last stage of the project the JavaScript in which we have added the logical and coded as per the requirement with some conditions. In this code we have listed the each tag which is created in the HTML code and later we have used them to make this project functioning as per the user end. Let us see the Final Output of the project Budget App using HTML, CSS & JavaScript (Source Code).

We have successfully created our Budget App using HTML, CSS & JavaScript. You can use this project for your personal needs and the respective lines of code are given with the code pen link mentioned above.

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Code Idea - codingartist

Written By – Harsh Sawant

Code By – @harshh9

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Budget App using HTML, CSS & JavaScript (Source Code)

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