【vue】判断当前访问的设备是pc还是h5

mounted

_isMobile() {
      let flag = navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i)
      return flag;
    }

methods

 if (this._isMobile()) {
      alert("手机端");
      this.$router.replace('/m_index');
    } else {
      alert("pc端");
      this.$router.replace('/pc_index');
    }

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