我有以下SVG文件.
<svg
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:cc="http://creativecommons.org/ns#"
xmlns:rdf="htntp://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns="http://www.w3.org/2000/svg"
version="1.1"
width="1000"
height="650"
id="svgContainer">
<g
id="truck">
<animate attributeName="fill" from="black" to="red" dur="5s"/>
<path
d="m 655.589,484.36218 -6.18561,-128.61524 -110.99241,-15.79583 -34.55321,-87.58893 -94.74579,0 3.03024,178.75619 -322.238663,2.0203 0.145305,51.22351 z"
id="body"
fill="#000000"
stroke="#000000"
stroke-width="1px"
stroke-linecap="butt"
stroke-linejoin="miter"
stroke-opacity="1" />
<animate attributeType="XML" attributeName="x" to="1000" begin="indefinite" dur="1s" />
<animate attributeType="XML" attributeName="y" to="1000" begin="indefinite" dur="1s" />
</g>
</svg>
</g>
</svg>
我只想将它移动到动画的其他地方,但它不起作用.这里有什么我想念的吗？(我想g用内部的所有内容为元素设置动画.为了简单起见,我删除了其余的元素.)
我有以下代码:
tr = document.createElement("tr");
root.appendChild(tr);
td = document.createElement("td");
td.appendChild(document.createTextNode("some value"));
tr.appendChild(td);
好吧,这段代码和
root.innerHTML = "<tr><td>some value</td></tr>";
第一个版本可能是更好的方法,因为浏览器不必呈现字符串.但它太长了.特别是对于更大的结构,这种实现变得非常难以阅读.所以我觉得有更好的方法来编写它(没有任何JavaScript库).你将如何实现这一点,以便代码更具可读性？(现在我将代码与评论分开.)
嗨,我正在尝试将nginx配置为websockets的反向代理.我将服务器配置如下:
server {
listen 80;
server_name www.mydomain.com;
access_log off;
#error_log off;
location / {
proxy_pass http://127.0.0.1:8765;
proxy_redirect off;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "Upgrade";
proxy_set_header Host $http_host;
proxy_buffering off;
}
}
但是我从客户那里得到了如下错误
与'ws://www.application.com/ws'的WebSocket连接失败:WebSocket握手期间出错:'Connection'标头值不是'Upgrade'
我可能正在做一些配置错误但我看不到它.
客户端的请求标头如下
GET ws://www.talkybee.com/ws HTTP/1.1
Pragma: no-cache
Origin: http://www.talkybee.com
Host: www.talkybee.com
Sec-WebSocket-Key: Ol+O1IdaLEsHxxWRBt2oqg==
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.116 Safari/537.36
Upgrade: websocket
Sec-WebSocket-Extensions: x-webkit-deflate-frame
Cache-Control: no-cache
Connection: Upgrade
Sec-WebSocket-Version: 13
当我进行正常的直接连接时,我的连接正常.这是工作请求标题.
Cache-Control:no-cache
Connection:Upgrade
Host:www.talkybee.com:8765
Origin:http://www.talkybee.com:8765
Pragma:no-cache
Sec-WebSocket-Extensions:x-webkit-deflate-frame
Sec-WebSocket-Key:Y026b/84aUkMxVb0MaKE2A== …我有以下页面
<html>
<head>
<script type="text/javascript" src="e01.js"></script>
</head>
<body>
<script type="text/javascript">
var obj={someHTML: "<script>alert('a');</script>rest of the html",
someOtherAttribute:"some value"};
alert(obj.someHTML);
</script>
</body>
</html>
在我的对象的someHTML属性中,我有</script>一个字符串中的标记.但是浏览器将其读作实际的关闭标记并关闭脚本元素.这里有什么我想念的吗？(用ff和chrome试过)
我试图为多种类型创建一个多态镜头decleration(没有模板haskell).
module Sample where
import Control.Lens
data A = A {_value:: Int}
data B = B {_value:: Int}
data C = C {_value:: String}
value = lens _value (\i x -> i{_value=x}) -- <<< ERROR
但我得到以下错误:
Ambiguous occurrence ‘_value’
It could refer to either the field ‘_value’,
defined at library/Sample.hs:5:13
or the field ‘_value’, defined at
library/Sample.hs:4:13
or the field ‘_value’, defined at
library/Sample.hs:3:13
|
6 | value = lens _value (\i x -> i{_value=x}) -- <<< ERROR
| ^^^^^^ …javascript ×3
dom ×1
haskell ×1
haskell-lens ×1
html ×1
innerhtml ×1
nginx ×1
polymorphism ×1
svg ×1
websocket ×1