从单击的按钮内的图像中获取src. [英] Get src from image inside button that you have clicked.
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问题描述
我试图从按钮中的图像获取SRC，我必须按下按钮才能打开手风琴(引导程序).我想要的是从按钮内的图像中获取src，但是我似乎找不到我要找的东西的好例子.单击图像本身时只有src值.
I am trying to get the SRC from an image inside a button that i have to press to open a accordion (bootstrap). What I want, is to get the src from the image that is inside the button but I cannot seem to find a good example of what I am looking for. Only the src value from when you click the image itself.
我当前的代码:
function collapse() {
console.log("Help!");
}
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
<title>Hello, world!</title>
<style>
#collapseimg {
width: 15px;
}
</style>
</head>
<body>
<div id="accordion">
<div class="card">
<div class="card-header" id="headingOne">
<h5 class="mb-0">
<button class="btn btn-link" onclick="collapse()" data-toggle="collapse" data-target="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
<img id="collapseimg" src="collapse-close.png" />
Is het nodig een afspraak te maken?
</button>
</h5>
</div>
<div id="collapseOne" class="collapse" aria-labelledby="headingOne" data-parent="#accordion">
<div class="card-body">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird
on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table,
raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<script src="main.js"></script>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
</body>
</html>
那我想要什么?我想从ID为img的img中获取当前的src值.但是只有我单击的按钮内的那个.
So what do I want? I want to get the current src value from the img with the ID: collapseimg. But only the one inside the button that I have clicked.
亲切的问候， 罗伯特
推荐答案
首先不要使用内联JavaScript.而是绑定到您需要的元素.然后使用this，.find()和.attr()获取图像的src属性$(this).find('img').attr('src'):
First don't use inline JavaScript. Instead bind to the element you need. Then use this, .find(), and .attr() to get the image's src property, $(this).find('img').attr('src'):
$('button.btn.btn-link').click(function() {
console.log($(this).find('img').attr('src'))
})
#collapseimg {
width: 15px;
}
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
<div id="accordion">
<div class="card">
<div class="card-header" id="headingOne">
<h5 class="mb-0">
<button class="btn btn-link" data-toggle="collapse" data-target="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
<img id="collapseimg" src="collapse-close.png" />
Is het nodig een afspraak te maken?
</button>
</h5>
</div>
<div id="collapseOne" class="collapse" aria-labelledby="headingOne" data-parent="#accordion">
<div class="card-body">
Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird
on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table,
raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<script src="main.js"></script>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
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