判断 是否为微信小程序

let weixinBoolean = false
const ready = () => {
  if (window.__wxjs_environment === \'miniprogram\') {
    weixinBoolean = true;
  }
};
if (!window.WeixinJSBridge || !WeixinJSBridge.invoke) {
  document.addEventListener(\'WeixinJSBridgeReady\', ready, false);
} else {
  ready();
  window.WeixinJSBridge.on(\'onPageStateChange\', res => {
    console.log(\'res is active\', res.active);
  });
}

if (weixinBoolean) {
    console.log(\'微信小程序\')
}