本文介绍了检查推荐人的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在用它来检查是否有人来自Reddit,但它不起作用。
I'm using this to check if someone came from Reddit, however it doesn't work.
var ref = document.referrer;
if(ref.match("/http://(www.)?reddit.com(/)?(.*)?/gi"){
alert('You came from Reddit');
} else {
alert('No you didn\'t');
}
关于正则表达式的建议也非常受欢迎。
Suggestions on the regular expression are most welcome too.
推荐答案
试试这个:
if (ref.match(/^https?:\/\/([^\/]+\.)?reddit\.com(\/|$)/i)) {
alert("Came from reddit");
}
正则表达式:
/^ # ensure start of string
http # match 'http'
s? # 's' if it exists is okay
:\/\/ # match '://'
([^\/]+\.)? # match any non '/' chars followed by a '.' (if they exist)
reddit\.com # match 'reddit.com'
(\/|$) # match '/' or the end of the string
/i # match case-insenitive
这篇关于检查推荐人的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!