javascript - js 如果 window.location.href 不匹配，则跳转到

Question

如何做window.location.href法官？

如果window.location.href不匹配?search=，则使当前url跳转到http://localhost/search?search=car

我的代码不起作用，还是我应该indexOf用来做判断？谢谢。

if(!window.location.href.match('?search='){
    window.location.href = 'http://localhost/search?search=car';
}

Answer 1

有几件事：你缺少一个结束括号，你需要逃避 ? 因为它对正则表达式很重要。使用/\?search=/或'\\?search='。

// Create a regular expression with a string, so the backslash needs to be
// escaped as well.
if (!window.location.href.match('\\?search=')) {
    window.location.href = 'http://localhost/search?search=car';
} 

或者

// Create a regular expression with the /.../ construct, so the backslash
// does not need to be escaped.
if (!window.location.href.match(/\?search=/)) {
    window.location.href = 'http://localhost/search?search=car';
}