为什么时间段为空
const url = 'http://example.com?timeperiod=lasttwentyeightdays&pagesize=20'
const args = new URLSearchParams(url);
alert('timeperiod='+args.get('timeperiod') + ' and pagesize='+ args.get('pagesize'));
但在下面的代码中它有效
const url = 'http://example.com?x=c&timeperiod=lasttwentyeightdays&pagesize=20'
const args = new URLSearchParams(url);
alert('timeperiod='+args.get('timeperiod') + ' and pagesize='+ args.get('pagesize'));
您需要创建一个 URL 对象，然后使用以下命令检索参数url.search:
See https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/URLSearchParams#Examples
const url = new URL('http://example.com?timeperiod=lasttwentyeightdays&pagesize=20');
const args = new URLSearchParams(url.search);
console.log(`timeperiod=${args.get('timeperiod')} and pagesize=${ args.get('pagesize')}`);
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