[英]Store value in a variable with Javascript
I'm a JS novice so be gentle. 我是JS新手,所以要谦虚。
I am working on a simple script that reads a value from another web page on my local Intranet. 我正在研究一个简单的脚本,该脚本从本地Intranet上的另一个网页读取值。
Intranet Home Page (index.php): 内联网首页(index.php):
<div id="username">my.username</div>
script.js: 的script.js:
$(document.body).load('http://intranet/index.php #username');
Now, I was wondering, instead of just displaying this value, how do I store it in a variable? 现在,我想知道,不只是显示此值,而是如何将其存储在变量中?
You want to query it with ajax, then parse that HTML, then find that element in the parsed HTML and extract its text: 您想要使用ajax查询它,然后解析该HTML,然后在解析的HTML中找到该元素并提取其文本:
$.ajax({
url: 'http://intranet/index.php',
success: function(html) {
var nodes = $.parseHTML(html);
var username = $("<div>").append(nodes).find("#username").text();
console.log(username);
}
});
Here's an example of the parsing/finding part using a static HTML string: 这是使用静态HTML字符串的解析/查找部分的示例:
var html = '<html><body><div>foo<div id="username">my.username</div></div></body></html>'; var nodes = $.parseHTML(html); var username = $("<div>").append(nodes).find("#username").text(); console.log(username);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Or without the wrapper div
: 或者没有包装器
div
:
// Test finding it nested test('<html><body><div>foo<div id="username">my.username</div></div></body></html>'); // Test finding it top-level test('<div>foo</div><div id="username">my.username</div><div>bar</div>'); function test(html) { var username = null; $.parseHTML(html).some(function(node) { if (node.id === "username") { username = $(node).text(); return true; } node = $(node).find("#username"); if (node[0]) { username = node.text(); return true; } }); console.log(username); }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
You can see why I used the wrapper div
. 您可以看到为什么使用了wrapper
div
。 :-) :-)
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.