javascript - Determine whether it is a WeChat browser. The same code will invalidate and take effect?

Question

Test address one: (test successful)
http://bbs2.valueonline.cn/we...

Test address two: (test failed)
http://bbs2.valueonline.cn/we...

Determine whether it is the code of WeChat browser:

<script type="text/javascript">
$(function(){
    //判断是否是微信
    var is_weixn=( function(){
        var ua = navigator.userAgent.toLowerCase();
        if(ua.match(/MicroMessenger/i)=="micromessenger"){
            return true;
        }
        else{
            $(".header").removeClass("hide");
            $(".footerMeumBox").hide();
            return false;
        }
    })()
})
</script>

The effect you want to achieve: (the head navigation will not be displayed in the WeChat browser, and the bottom navigation will not be displayed in the ordinary browser)

Answer 1

**Are you sure it is the same code?
Put one code in $(function(){})里，一份不放，当然不放的那一份，在执行的时候找不到$(".footerMeumBox")**

Answer 2

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