提问人:Tms91 提问时间:1/8/2023 最后编辑:Tms91 更新时间:1/8/2023 访问量:33
无法通过 jQuery 将事件中的数据获取到 HTML 中 [duplicate]
cannot get and data from an event into html via jquery [duplicate]
问:
我是传单和javascript,jquery的初学者。
我有一个 index.html 页面,我在其中显示地图,然后我希望当用户将鼠标移到地图上时,鼠标指向的坐标会打印在地图下方。
为了做到这一点,我在地图下有一个 div 元素,其 id 为“coordinate”,我想用 jquery 替换它,其中包含来自事件“mousemove”的信息,当鼠标在地图上移动时触发。
下面是我的代码。
一切正常,并且正确地将mousemove事件和两个坐标编号打印到我的控制台中,除了要重新放置的html文本被硬编码为div asconsole.log(...)
经度:${e.latlng.lat} 多头:${e.latlng.lng}
并且来自事件的信息不会被替换。
就像它不能解释为变量一样。${...}
怎么了?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>leaflet geoproject</title>
<style>
#map{
width: 100%;
height: 700px;
}
</style>
<!-- Include Leaflet CSS file in the head section of your document: -->
<link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/leaflet.css"
integrity="sha256-kLaT2GOSpHechhsozzB+flnD+zUyjE2LlfWPgU04xyI="
crossorigin=""/>
</head>
<body>
<!-- this is where i want my map to be -->
<div style="height: 500px; width: 90%;" id="map"></div>
<!-- set this style onòy to fit the screen where i am developing -->
<button onclick=fullScreenview()>View in full screen</button>
<!-- this is a user defined function -->
<div class="coordinate">void</div>
</body>
</html>
<!-- Include Leaflet JavaScript file after Leaflet’s CSS: -->
<!-- Make sure you put this AFTER Leaflet's CSS -->
<!-- <script src="https://unpkg.com/[email protected]/dist/leaflet.js" integrity="sha256-WBkoXOwTeyKclOHuWtc+i2uENFpDZ9YPdf5Hf+D7ewM=" crossorigin=""></script> -->
<script src="https://unpkg.com/[email protected]/dist/leaflet.js"></script>
<!-- load jquery. I put this after leaflet -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>
// initializig the class map
var map = L.map('map').setView([44.8683931,9.2651729], 15);
map.zoomControl.setPosition('topright');
L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
}).addTo(map);
L.marker([44.8683931,9.2651729]).addTo(map)
.bindPopup('lable on my pointer.')
.openPopup();
// add map scale
L.control.scale().addTo(map);
// full sreeen function
var mapId = document.getElementById('map');
function fullScreenview() {
mapId.requestFullscreen();
}
// display the coordinates of the point pf hte map where the mouse is
// i need jquery for this
// when the mouse is over the map - when the map fires the event mousemove
map.on('mousemove', function(e) {
// this is a nice way to chek if the info I want is got correctly
console.log(e);
console.log(e.latlng.lat);
console.log(e.latlng.lng);
// replace the content of the element having class coordinate with the html
$('.coordinate').html('Lat: ${e.latlng.lat} Long: ${e.latlng.lng}');
})
</script>
答:
2赞
john Smith
1/8/2023
#1
对于模板文字,您需要使用反引号而不是单引号
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals
即
`Lat: ${e.latlng.lat} Long: ${e.latlng.lng}`
而不是
'Lat: ${e.latlng.lat} Long: ${e.latlng.lng}'
评论
0赞
Andreas
1/8/2023
结果编号 4,在 SO 上搜索 javascript 模板文字时,具有欺骗目标......
0赞
Tms91
1/8/2023
这太棘手了!谢谢:)
0赞
john Smith
1/8/2023
@Tms91 ;-)我很高兴我看到了这一点,它有所帮助
评论