这次我试图制作一个代码,让用户选择他/她想去的位置。我已经写了html和js,但现在我被卡住了(大约半天......)通过连接它们。我已经在引导的帮助下编写了一个下拉菜单。我还编写了一个 js 文件,它应该循环这些位置。最后,它应该了解用户选择了什么,然后输出结果,结果应该是:
var text = '<p>' + buses[i].to + '<br> - Distance from Estonia: ' + buses[i].distance + ' km <br> - Price: ' + buses[i].price + ' euros <br>'
在网络浏览器中,像这样:
阿姆斯特丹
- 距离爱沙尼亚:2000公里
- 价格:250欧元
但是无论我尝试什么,都没有效果(我知道这是因为我的知识很差,我不怪 JS)。我试图在任何地方放置"id"和"onclick功能"。
所以,我会粘贴其中的一小部分,也许有人可以帮助:)
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8" />
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<h2>Buses</h2>
<p id="test1">...</p>
<p id="test2">...</p>
<script src="js/buses.js"></script>
<!-- Dropdown menu for beautiful usage -->
<div class="dropdown">
<button class="btn btn-secondary dropdown-toggle" id="dropdownMenu2" type="button">
List of locations
</button>
<div class="dropdown-menu" aria-labelledby="dropdownMenu2">
<ul id="boss">
<li><a role="button" onclick="bus()" value="Amsterdam">">Amsterdam</a></li>
<li><a role="button" onclick="bus()" value="Madrid">Madrid</a></li>
<li><a role="button" onclick="bus()" value="Stockholm">Stockholm</a></li>
<li><a role="button" onclick="bus()" value="Riga">Riga</a></li>
</ul>
</div>
</div>
</body>
</html>
还有我的 JS 文件:
// If person is in some location
document.getElementById("test2").innerHTML = "<hr> You're in Estonia, where would You want to travel?";
function bus() {
// Object with info
var buses = [
{ to: 'Amsterdam', distance: 2000, price: 250},
{ to: 'Madrid', distance: 4500, price: 350},
{ to: 'Stockholm', distance: 1500, price: 90},
{ to: 'Riga', distance: 400, price: 100}
];
// Should get result which user has choosen
var res = document.getElementById("boss");
var result = res.value;
console.log(value); // outputs html row... >.>
// Loop through the object
var text = "";
for(var i = 0; i < (buses.length); i++) {
if (result == buses[i].to) { text = '<p>' + buses[i].to + '<br> - Distance from Estonia: ' + buses[i].distance + ' km <br> - Price: ' + buses[i].price + ' euros <br>';
alert("Works!!!!"); // Well, last thing is to change it to output "var text" result
}
};
document.getElementById("test2").innerHTML = text; // If everything is correct, this should output sentence about selected bus
}
谢谢!
在 onclick 函数本身中传递城市的值
<li><a role="button" onclick="bus('Amsterdam')">Amsterdam</a></li>
并在函数中像这样接收它
function bus(value) {
var result=value;
}