如何使用子节点正确实现onclick以使div消失？
[英]How would I properly implement onclick using childnodes to make a div disappear?
问题描述
I asked a question yesterday but it was off-topic and I have worked around the code to accomplish the goal I wanted via hover but now I want each div that is clicked to become transparent. 
昨天我问了一个问题，但这是题外话，我已经围绕代码进行工作，以通过悬停实现我想要的目标，但是现在我希望每个被单击的div都变得透明。 The problem that I know have is I am working in Dreamweaver instead of phpstorm and I am not sure if the command I used is valid. 我知道的问题是我在Dreamweaver中而不是phpstorm中工作，并且我不确定所使用的命令是否有效。 My html is here: 我的html在这里：
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div id="category">
<div class="content">
</div>
<div class="content">
</div>
<div class="content">
</div>
<div class="content">
</div>
<div class="content">
</div>
</div>
<style>
div { background-color: springgreen; }
div { width: 100px; }
div { height: 100px; }
</style>
</body>
<script src="js/main.js"></script>
</html>
and javascript: 和javascript：
/**
* Created by Mark M. on 3/28/2015.
*
*/
var category = document.getElementById("category");
for (var child = category.firstChild; child != null; child = child.nextSibling) {
if (child.nodeType == 1 && child.className == "content") {
child.onmouseover = function() {
this.style.width = "150px";
this.style.height = "150px"
};
child.onmouseout = function() {
this.style.width = "100px";
this.style.height = "100px"
};
child.onmouseclick= function() {
//disappear
this.style.backgroundColor = "transparent";
}
}}
3 个解决方案
解决方案1
1 2015-04-02 02:48:36
This should be an elegant solution for your question. 对于您的问题，这应该是一个优雅的解决方案。 Click "Run Code Snippet" to check: 点击“运行代码段”进行检查：
var contentDivs = document.getElementsByClassName('content'); for(var i = 0; i < contentDivs.length; i++) { var div = contentDivs[i]; div.onclick = function(){ this.style.display = 'none'; } }
div {background-color: springgreen; width: 100px; height: 100px;}
<div id="category"> <div class="content">Content 1</div> <div class="content">Content 2</div> <div class="content">Content 3</div> <div class="content">Content 4</div> <div class="content">Content 5</div> </div>
解决方案2
0 2015-04-02 02:41:09
The problem is that you are using 'onmouseclick' instead of 'onclick' 问题是您使用的是“ onmouseclick”而不是“ onclick”
how about using document.getElementsByClassName('content') , and addEventListener() instead of using the 'onX' syntax. 如何使用document.getElementsByClassName('content')和addEventListener()而不是使用'onX'语法。 I believe the addEventListener is more standards compliant and should provide better browser compatibility. 我相信addEventListener更符合标准，应该提供更好的浏览器兼容性。
https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByClassName https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByClassName
https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener
var content = document.getElementsByClassName('content');
console.log('content found', content);
for (var i = 0; i < content.length; i+=1){
content[i].addEventListener("click", function(){
this.style.backgroundColor = "transparent";
});
}
解决方案3
0 已采纳 2015-04-02 02:54:46
Try this : 尝试这个 ：
HTML HTML
<div id="category">
<div class="content"></div>
<div class="content"></div>
<div class="content"></div>
<div class="content"></div>
<div class="content"></div>
</div>
JavaScript JavaScript的
var arrContent = document.querySelectorAll("#category div.content");
for(i =0; i< arrContent.length; i++){
var child = arrContent[i];
console.log(child)
if (child.nodeType == 1 ) {
child.onmouseover = function() {
this.style.width = "150px";
this.style.height = "150px"
};
child.onmouseout = function() {
this.style.width = "100px";
this.style.height = "100px"
};
child.onclick= function() {
this.style.backgroundColor = "transparent";
}
}
}`
StyleSheet 样式表
div.content {background-color: springgreen;width: 100px;height: 100px;}
var arrContent = document.querySelectorAll("#category div.content"); for(i =0; i< arrContent.length; i++){ var child = arrContent[i]; console.log(child) if (child.nodeType == 1 ) { child.onmouseover = function() { this.style.width = "150px"; this.style.height = "150px" }; child.onmouseout = function() { this.style.width = "100px"; this.style.height = "100px" }; child.onclick= function() { this.style.backgroundColor = "transparent"; } } }
div.content {background-color: springgreen;width: 100px;height: 100px;}
<div id="category"> <div class="content"></div> <div class="content"></div> <div class="content"></div> <div class="content"></div> <div class="content"></div> </div>
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