问题集

如何实现在商户网站就判断当前浏览器是否支持googlepay

目前googlepay支持在多种浏览器端进行支付，具体可以用Googlepay的js来判断一下

https://developers.google.cn/pay/api/web/guides/tutorial?hl=zh-cn

/**
 * Initialize Google PaymentsClient after Google-hosted JavaScript has loaded
 *
 * Display a Google Pay payment button after confirmation of the viewer's
 * ability to pay.
 */
function onGooglePayLoaded() {
  const paymentsClient = getGooglePaymentsClient();
  paymentsClient.isReadyToPay(getGoogleIsReadyToPayRequest())
      .then(function(response) {
        if (response.result) { 
         // 这里改造成是否显示googlepay button
          addGooglePayButton();
          // @todo prefetch payment data to improve performance after confirming site functionality
          // prefetchGooglePaymentData();
        }
      })
      .catch(function(err) {
        // show error in developer console for debugging
        console.error(err);
      });
}