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script.js
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script.js
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const form = document.querySelector("#expenseForm");
const list = document.querySelector("#expenseList");
const select = document.querySelector("#type");
const total = document.querySelector(".total-balance");
const income = document.querySelector(".income");
const expense = document.querySelector(".expense");
const { description, date, amount } = form.elements;
let zero = 0
total.textContent = zero.toFixed(2);
income.textContent = zero.toFixed(2);
expense.textContent = zero.toFixed(2);
//Selection
select.addEventListener("change", () => {
if (!select.value == "") select.value;
})
//Form input validation
form.addEventListener("submit", (e) => {
e.preventDefault();
if (!(description.value && date.value && amount.value)) {
alert("Please fill in the form!")
} else {
if (select.value === "") {
alert("Please select Income/Expense.");
} else {
select.value === "income" ? valueIncome() : valueExpense();
addList(description.value, date.value, amount.value);
description.value = "";
date.value = "";
amount.value = "";
}
};
})
//Income value
function valueIncome() {
const calcTotal = parseFloat(total.innerText) + parseFloat(amount.value);
const calcIncome = parseFloat(income.innerText) + parseFloat(amount.value);
total.innerText = calcTotal.toFixed(2)
income.innerText = calcIncome.toFixed(2)
}
//Expense value
function valueExpense() {
const calcTotal = parseFloat(total.innerText) - parseFloat(amount.value);
const calcExpense = parseFloat(expense.innerText) + parseFloat(amount.value);
total.innerText = calcTotal.toFixed(2);
expense.innerText = calcExpense.toFixed(2);
}
//Add new list in the expense table
function addList(a, b, c) {
const tr = document.createElement("tr");
const tdDescribe = document.createElement("td");
const tdDate = document.createElement("td");
const tdAmount = document.createElement("td");
const delBtn = document.createElement("button");
const formatNum = parseFloat(c).toFixed(2);
list.append(tr);
tr.append(tdDescribe, tdDate, tdAmount, delBtn);
tdDescribe.append(a);
tdDate.append(b);
tdAmount.append(formatNum);
select.value === "income" ? tdAmount.classList.add("income") : tdAmount.classList.add("expense")
delBtn.innerHTML = '<i class="fas fa-trash"></i>';
delBtn.classList.add("trash");
delBtn.addEventListener("click", delList);
}
//Delete button function
function delList() {
const delValueIncome = () => {
const calcTotal = parseFloat(total.innerText) - parseFloat(num.innerHTML);
const calcIncome = parseFloat(income.innerText) - parseFloat(num.innerHTML);
total.innerText = calcTotal.toFixed(2)
income.innerText = calcIncome.toFixed(2);
};
const delValueExpense = () => {
const calcTotal = parseFloat(total.innerText) + parseFloat(num.innerHTML);
const calcExpense = parseFloat(expense.innerText) - parseFloat(num.innerHTML);
total.innerText = calcTotal.toFixed(2);
expense.innerText = calcExpense.toFixed(2);
}
let li = this.parentNode;
let num = this.parentNode.childNodes[2];
num.classList.value === "income"? delValueIncome() : delValueExpense()
li.remove()
}
// Only allows Numbers and one decimal pont in textbox input
function isNumberKey(evt) {
let charCode = (evt.which) ? evt.which : evt.keyCode
if (charCode == 46 && this.value.indexOf('.') != -1) {
return false;
} else if (charCode > 31 && charCode != 46 && (charCode < 48 || charCode > 57)) {
return false;
} return true;
}
amount.onkeypress = isNumberKey;