代码

	/**
	 * 判断当前打开环境
	 */
	function getUserAgent() {
		let ua = navigator.userAgent.toLowerCase();
		if (ua.match(/wxwork/i) == 'wxwork') {
			//企业微信
			return 1;
		} else if(ua.match(/micromessenger/i) == 'micromessenger') {
			//微信
			return 2;
		} else if(ua.match(/baidu/i) == 'baidu') {
			//百度
			return 3;
		}
		return 0;
	}

使用

console.log(getUserAgent())
if (getUserAgent() == 1) {
    //code
}