нужен скрипт который будет задавать data-color button-а при клике заднему фону Navbar`а на чистом js, объясните пож-ста,ибо в деле новичок,и не совсем понимаю,спасибо за помощь)
.btn-violet {
background-color: #563d7c;
color: #fff;
}
.navbar {
background-color: rgb(24, 18, 18);
}
.navbar-light .navbar-nav .nav-link {
color: #ffffff;
}
.navbar .navbar-brand {
color: #fff;
}
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="stylesheet" />
<!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>Document</title>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light">
<a class="navbar-brand" href="#">Navbar</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">
<a class="nav-link" href="#">Home
<span class="sr-only">(current)</span>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
</ul>
</div>
</nav>
<div class="container">
<h1>Change Backgroud</h1>
<button type="button" class="btn btn-primary" data-color="#007bff">Primary</button>
<button type="button" class="btn btn-success" data-color="#28a745">Success</button>
<button type="button" class="btn btn-danger" data-color="#dc3545">Danger</button>
<button type="button" class="btn btn-violet" data-color="#563d7c">Violet</button>
<button type="button" class="btn btn-warning" data-color="#ffc107">Warning</button>
<button type="button" class="btn btn-info" data-color="#17a2b8">Info</button>
<button type="button" class="btn btn-dark" data-color="#343a40">Dark</button>
</div>
</body>
</html>
Добавляем следующий код в JS-файл:
document.querySelector('.container').onclick = function(e) {
if (e.target.tagName == 'BUTTON') {
document.querySelector('nav').style.backgroundColor = e.target.getAttribute('data-color');
}
}
.btn-violet {
background-color: #563d7c;
color: #fff;
}
.navbar {
background-color: rgb(24, 18, 18);
}
.navbar-light .navbar-nav .nav-link {
color: #ffffff;
}
.navbar .navbar-brand {
color: #fff;
}
.container {
text-align: center;
padding: 0 !important;
}
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css" rel="stylesheet" />
<nav class="navbar navbar-expand-lg navbar-light">
<a class="navbar-brand" href="#">Navbar</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">
<a class="nav-link" href="#">Home
<span class="sr-only">(current)</span>
</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
</ul>
</div>
</nav>
<div class="container">
<h1>Change Backgroud</h1>
<button type="button" class="btn btn-primary" data-color="#007bff">Primary</button>
<button type="button" class="btn btn-success" data-color="#28a745">Success</button>
<button type="button" class="btn btn-danger" data-color="#dc3545">Danger</button>
<button type="button" class="btn btn-violet" data-color="#563d7c">Violet</button>
<button type="button" class="btn btn-warning" data-color="#ffc107">Warning</button>
<button type="button" class="btn btn-info" data-color="#17a2b8">Info</button>
<button type="button" class="btn btn-dark" data-color="#343a40">Dark</button>
</div>
Написал код чтобы он при вводе двух чисел сравнивал их и говорил какое число больше или они равны, но текст с результатом не выводитсяВ чём...