[英]Linking a Javascript function on a layout that is loaded from the asset pipeline in ruby on rails?
When I link a function from an asset pipeline loaded javascript file(app/assets/javacripts/bootstrap.js) in my static page layout upon inspection I get: Uncaught ReferenceError: myFunction is not defined. 当检查时从静态页面布局中的资产管道加载的javascript文件(app / assets / javacripts / bootstrap.js)链接函数时,我得到:未捕获的ReferenceError:未定义myFunction。 I have googled for hours and without using Coffeescript or Jquery or methods inside of ruby I would simply like to link this function from my .js file into an layout in my views. 我已经搜索了几个小时,并且没有使用ruby内部的Coffeescript或Jquery或方法,我只是想将此函数从我的.js文件链接到视图中的布局中。 Any specific explanation or if you could link me to any resources on how to do this...or something that is a tutorial designed to quickly link Javascript into views not disturbing the pipeline that would be great. 任何具体的解释,或者您是否可以将我链接到有关如何执行此操作的任何资源...,或者是旨在将Javascript快速链接到视图而不会打扰管道的教程,这些都是很好的。 Thank you in advance. 先感谢您。
Here is the Javascript function: 这是Javascript函数:
/* When the user clicks on the button,
toggle between hiding and showing dropdown content */
function myFunction() {
document.getElementById("myDropdown").classList.toggle("show");
}
// Close the dropdown menu if the user clicks outside of it
window.onclick = function(event) {
if (!event.target.matches('.dropbtn')) {
var dropdowns = document.getElementsByClassName("dropdown-content");
var i;
for (i=0; i < dropdowns.length; i++) {
var openDropdown = dropdowns[i];
if (openDropdown.classList.contains('show')) {
openDropdown.classList.remove('show');
}
}
}
}
Here is the corresponding css: 这是对应的CSS:
/* Dropdown Button */
.dropbtn {
background-color: #4CAF50;
color: white;
padding: 16px;
font-size: 16px;
border: none;
cursor: pointer;
}
/* Dropdown button on hover & focus */
.dropbtn:hover, .dropbtn:focus {
background-color: #3e8e41;
}
/* The container <div> - needed to position the dropdown content */
.dropdown {
position: relative;
display: inline-block;
}
/* Dropdown content (Hidden by Default) */
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}
/* Links inside the dropdown */
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
/* Change color of dropdown links on hover */
.dropdown-content a:hover {background-color: #f1f1f1}
/* Show the dropdown menu (use JS to add this class to the .dropdown- content container when the user clicks on the dropdown button) */
.show {display:block;}
Here is my html: 这是我的html:
<li>
<div class="dropdown">
<button onclick="myFunction()" class="dropbtn">Dropdown</button>
<div id="myDropdown" class="dropdown-content">
<a href="#work_places">Work Places</a>
<a href="#living_places">Living Places</a>
<a href="#learning_places">Learning Places</a>
<a href="#interiors">Interiors</a>
<a href="#miscellaneous">Miscellaneous</a>
</div>
</div>
</li>
Try defining your function this way to (hopefully) make it global and accessible in your view: 尝试以这种方式定义函数,以(希望)使其在您的视图中全局且可访问:
this.myFunction = function() {
document.getElementById('myDropdown').classList.toggle('show');
};
Otherwise you can remove onclick from the view and attach it within the javascript file: 否则,您可以从视图中删除onclick并将其附加到javascript文件中:
document.getElementsByClassName('dropbtn')[0].onclick = function() {
document.getElementById('myDropdown').classList.toggle('show');
};
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.