Я новичок в JavaScript. Я создаю проект. Теперь я хочу добавить функцию, когда нажата кнопка поиска, а затем отобразить результат поиска. Однако с помощью лекции я выясняю, как фильтровать, когда пользователь печатает. Но я хочу добавить после ввода в строке поиска, когда пользователь нажимает кнопку поиска, то он также дает результат поиска на той же странице, что и при вводе.
showNotes();
// If user adds a note, add it to the localStorage
let addBtn = document.getElementById("addBtn");
addBtn.addEventListener("click", function (e) {
let addTxt = document.getElementById("addTxt");
let notes = localStorage.getItem("notes");
if (notes == null) {
notesObj = [];
} else {
notesObj = JSON.parse(notes);
}
notesObj.push(addTxt.value);
localStorage.setItem("notes", JSON.stringify(notesObj));
addTxt.value = "";
//console.log(notes)
showNotes();
});
// Function to show elements from localStorage
function showNotes() {
let notes = localStorage.getItem("notes");
if (notes == null) {
notesObj = [];
} else {
notesObj = JSON.parse(notes);
}
let html = "";
notesObj.forEach(function (element, index) {
html += `<div class="noteCard my-2 mx-2 card" style="width: 18rem;">
<div class="card-body">
<h5 class="card-title">Note ${index + 1}</h5>
<p class="card-text"> ${element}</p>
<button id="${index}"onclick="deleteNote(this.id)" class="btn btn-primary">Delete Note</button>
</div>
</div>`;
});
let notesElem = document.getElementById("notes");
if (notesObj.length != 0) {
notesElem.innerHTML = html;
} else {
notesElem.innerHTML = `Nothing to show`;
}
}
// function to delete a note
function deleteNote(index) {
let notes = localStorage.getItem("notes");
notesObj.splice(index, 1);
localStorage.setItem("notes", JSON.stringify(notesObj));
showNotes();
}
// search code
let search = document.getElementById('searchTxt');
search.addEventListener("input", function(){
let inputVal = search.value.toLowerCase();
// console.log('Input event fired!', inputVal);
let noteCards = document.getElementsByClassName('noteCard');
Array.from(noteCards).forEach(function(element){
let cardTxt = element.getElementsByTagName("p")[0].innerText;
if(cardTxt.includes(inputVal)){
element.style.display = "block";
}
else{
element.style.display = "none";
}
// console.log(cardTxt);
})
})
<!DOCTYPE html>
<html lang="en">
<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>Notes 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">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
<a class="navbar-brand" href="#">Magic Notes</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent"
aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" id="searchTxt" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" onclick="btnSearch()">Search</button>
</form>
</div>
</nav>
<div class="container my-3">
<h1>Welcome To Magic Notes</h1>
<div class="card">
<div class="card-body">
<h5 class="card-title">Add a note</h5>
<div class="form-group">
<textarea class="form-control" id="addTxt" rows="3"></textarea>
</div>
<button class="btn btn-primary" id="addBtn">Add Note</button>
</div>
</div>
<hr>
<h1>Your Notes</h1>
<hr>
<div id="notes" class="row container-fluid"> </div>
</div>
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"
integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1"
crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"
integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM"
crossorigin="anonymous"></script>
<script src="app.js"></script>
</body>
</html>