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index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Expense App</title>
<link
rel="stylesheet"
href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T"
crossorigin="anonymous"
/>
<script
defer
src="https://use.fontawesome.com/releases/v5.7.2/js/all.js"
integrity="sha384-0pzryjIRos8mFBWMzSSZApWtPl/5++eIfzYmTgBBmXYdhvxPc+XcFEk+zJwDgWbP"
crossorigin="anonymous"
>
</script>
</head>
<body>
<nav class="navbar navbar-dark bg-dark">
<span class="navbar-brand mb-0 h1">Xpers</span>
</nav>
<div class="container-fluid bg-light" style="min-height: 100vh">
<div class="container">
<h1 id ="headingTotal"></h1>
<div class="jumbotron mt-4">
<div class="input-group mb-3">
<input
type="text"
id="inputAmount"
class="form-control"
placeholder="Amount spent"
aria-label="Amount spent"
aria-describedby="spent in rupee"
/>
<div class="input-group-append">
<span class="input-group-text" id="spent in rupee">₹</span>
</div>
</div>
<div class="input-group mb-3">
<div class="input-group-prepend">
<span class="input-group-text" id="spent at">@</span>
</div>
<input
type="text"
id="inputDesc"
class="form-control"
placeholder="spent On"
aria-label="spent On"
aria-describedby="spent at"
/>
<div class="input-group-append">
<button class="btn btn-outline-primary" type="button" id="btnAddExpense">Add</button>
</div>
</div>
</div>
<div>
<ul class="list-group" id="expenseTable"></ul>
</div>
<script >
//get heading element
const headingEl=document.querySelector("#headingTotal");
// get the reference to desc element
const inputDesc1=document.querySelector("#inputDesc");
//ref to input amount
const inputElement=document.querySelector("#inputAmount");
//get the ref to table
const expenseTablel=document.querySelector("#expenseTable");
//init value of expense at 0
let totalExpense=0;
//set the heading element tp total expense
headingEl.textContent=`Total Expense:${totalExpense}`;
//allExpenses at one place
const allExpenses=[];
//onButtonclick add inputAmount to totalExpense
function addExpenseToTotal()
{
const expenseItem={};
//read value from inputAmount
const textAmount =inputElement.value;
//read the desc from inputDesc
const textDesc=inputDesc1.value;
//convert it to number
const expense =parseInt(textAmount,10);
//put it in object
expenseItem.desc=textDesc;
expenseItem.amount=expense;
expenseItem.moment= new Date();
allExpenses.push(expenseItem);
//add that value to totalExpense
totalExpense=totalExpense+expense;
//set the heading element to totalExpense
// const someText=`Total Expense: ${totalExpense}`
// headingEl.textContent=someText;
rendertotal(totalExpense);
renderList(allExpenses);
clearfields();
}
//get btn element
const element=document.querySelector("#btnAddExpense");
//listen to click event
element.addEventListener("click",addExpenseToTotal,false);
//controller function
function getDateString(moment)
{
return moment.toLocaleDateString("en-US",{
year:"numeric",
month:"long",
day:"numeric"})
}
//delete item
function deleteItem(dateValue)
{
// const newArr=[];
// for (let i=0;i<allExpenses.length;i++)
// {
// if(allExpenses[i].moment.valueOf()!== dateValue)
// {
// newArr.push(allExpenses[i]);
// }
// }
// const newArr=allExpenses.filter(expense=>{
// if(expense.moment.valueOf() !==dateValue)
// {
// return expense;
// }
// });
allExpenses.forEach(item=>{
if(item.moment.valueOf()===dateValue)
{
let pos=allExpenses.indexOf(item);
allExpenses.splice(pos,1);
totalExpense-=item.amount;
}
});
rendertotal(totalExpense);
renderList(allExpenses);
}
function clearfields()
{
inputDesc1.value="";
inputElement.value="";
}
//view layer
function rendertotal(totalExpense)
{
headingEl.textContent=`Total Expense:${totalExpense}`;
}
function renderList(newArr)
{
const allExpenseHtml= newArr.map(expense =>createListItem(expense));
const jionAllExpenseHtml=allExpenseHtml.join(" ");
expenseTablel.innerHTML=jionAllExpenseHtml;
}
function createListItem({desc,amount,moment})
{
return `
<li class="list-group-item d-flex justify-content-between">
<div class="d-flex flex-column">
${desc}
<small class="text-muted">${getDateString(moment)}</small>
</div>
<div>
<span class="px-5">
${amount}
</span>
<button
type="button"
class="btn btn-outline-danger btn-sm"
onclick="deleteItem(${moment.valueOf()})"
>
<i class="fas fa-trash-alt"></i>
</button>
</div>
</li>
`;
}
</script>
</body>
</html>