javascript - Check for user in JavaScript

Question

I have this piece of code, which checks the address bar for the string ?user=:

if(window.location.href.indexOf("?user=") > -1) {
    start();
} else {
    alert("No user.");
}

But actually I would like to check, if the ?user= has something after it, for example a name. I would be glad if you could help me out.

score 3 · Accepted Answer

使用正则表达式匹配。

if(window.location.href.match(/\?user=[^&]/) {
    start();
} else {
    alert("No user.");
}

score 0 · Accepted Answer

var user = (window.location.search.match(/user=(\w+)/) || [])[1];

if(user) {
    start();
} else {
    alert('No user.');
}

score 0 · Accepted Answer

0

你可以只使用这个正则表达式：

/user=\w+(&|$)/.test(window.location.search)

于 2013-11-14T20:18:03.320 回答

3 回答 3