可以在javascript上设置变量

Question

尝试使变量__lc.group 动态化，以便根据页面的 URL 设置组号，这是我尝试过的代码，但似乎没有用。

不知道为什么它不起作用。这是为现场实时聊天功能动态设置组变量，以便我可以为站点的不同页面设置不同的运算符。

if(window.location.href.indexOf("netball") > -1) {
       __lc.group = 1;
    }
if(window.location.href.indexOf("football") > -1) {
       __lc.group = 5;
    }
if(window.location.href.indexOf("basketball") > -1) {
       __lc.group = 2;
    }
if(window.location.href.indexOf("social") > -1) {
       __lc.group = 3;
    }
if(window.location.href.indexOf("fitness") > -1) {
       __lc.group = 6;
    }
if(window.location.href.indexOf("softball") > -1) {
       __lc.group = 4;
    }
if(window.location.href.indexOf("volleyball") > -1) {
       __lc.group = 4;
    }
if(window.location.href.indexOf("dodgeball") > -1) {
       __lc.group = 4;
    }
if(window.location.href.indexOf("american") > -1) {
       __lc.group = 4;
    }
if(window.location.href.indexOf("ultimate") > -1) {
       __lc.group = 4;
    }

完整的脚本代码为：

<!-- Start of LiveChat (www.livechatinc.com) code -->
<script type="text/javascript">
var __lc = {};
__lc.license = XXXXX;
if(window.location.href.indexOf("netball") > -1) {
       __lc.group = 1;
    }
if(window.location.href.indexOf("football") > -1) {
       __lc.group = 5;
    }
if(window.location.href.indexOf("basketball") > -1) {
       __lc.group = 2;
    }
if(window.location.href.indexOf("social") > -1) {
       __lc.group = 3;
    }
if(window.location.href.indexOf("fitness") > -1) {
       __lc.group = 6;
    }
if(window.location.href.indexOf("softball") > -1) {
       __lc.group = 4;
    }
if(window.location.href.indexOf("volleyball") > -1) {
       __lc.group = 4;
    }
if(window.location.href.indexOf("dodgeball") > -1) {
       __lc.group = 4;
    }
if(window.location.href.indexOf("american") > -1) {
       __lc.group = 4;
    }
if(window.location.href.indexOf("ultimate") > -1) {
       __lc.group = 4;
    }

(function() {
  var lc = document.createElement('script'); lc.type = 'text/javascript'; lc.async = true;
  lc.src = ('https:' == document.location.protocol ? 'https://' : 'http://') + 'cdn.livechatinc.com/tracking.js';
  var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(lc, s);
})();
</script>
<!-- End of LiveChat code -->

Answer 1

这是一种处理检查的有效且更优雅的方式。它使用名称和相应的数字定义一个对象，然后对其进行迭代并与 url 进行比较。 https://jsfiddle.net/gb2tr4a9/

__lc = {license:123456789}
var categories = {
    netball:4 ,
    football:5,
    basketball:2,
    fiddle:99
}
for (var c in categories) {
    if(window.location.href.indexOf(c) != -1) {
       __lc.group = categories[c]; 
       break;
    }
}    
console.log(__lc);     

响应是一个对象，其中{group=99}