我需要从字符串值中找到一个数字,如:
tag:example.com,1999:blog-124938250235712450.post-092348192357990021
我通过JQuery使用了这个方法:
JavaScript和HTML代码:
var getId = 'tag:example.com,1999:blog-124938250235712450.post-092348192357990021',
postID = getId.match(/post-\w*/),
blogID = getId.match(/blog-\w*/);
/* Print Post ID */
$('#post-id').html(postID);
/* Print Blog ID */
$('#blog-id').html(blogID);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
Getting Post ID : <span id='post-id'></span>
<br/>
Getting Blog ID : <span id='blog-id'></span>
所以,输出为:
POST ID就像post-092348192357990021
博客ID就像blog-124938250235712450
。
但是,我只需要每个数字,例如:
POST ID如下:092348192357990021
像这样的博客ID:124938250235712450
。
我希望你帮助我们 提前致谢!
使用RegEx捕获组()
并通过它的索引[1]
选择捕获。
如果你只需要数字,你也可以用\d
捕获数字。
var getId = 'tag:example.com,1999:blog-124938250235712450.post-092348192357990021',
postID = getId.match(/post-(\d*)/),
blogID = getId.match(/blog-(\d*)/);
/* Print Post ID */
$('#post-id').html(postID[1]);
/* Print Blog ID */
$('#blog-id').html(blogID[1]);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
Getting Post ID : <span id='post-id'></span>
<br/>
Getting Blog ID : <span id='blog-id'></span>
如果这是确切的格式,您甚至不需要正则表达式。
var getId = 'tag:example.com,1999:blog-124938250235712450.post-092348192357990021';
var [postID, blogID] = getId.split(":blog-")[1].split(".post-");
/* Print Post ID */
$('#post-id').html(postID);
/* Print Blog ID */
$('#blog-id').html(blogID);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
Getting Post ID : <span id='post-id'></span>
<br/>
Getting Blog ID : <span id='blog-id'></span>
将对象转换为String后,只需使用split和pop:
var getId = 'tag:example.com,1999:blog-124938250235712450.post-092348192357990021',
postID = getId.match(/post-\w*/).toString().split('-').pop(),
blogID = getId.match(/blog-\w*/).toString().split('-').pop();
/* Print Post ID */
$('#post-id').html(postID);
/* Print Blog ID */
$('#blog-id').html(blogID);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
Getting Post ID : <span id='post-id'></span>
<br/>
Getting Blog ID : <span id='blog-id'></span>