Editorial: small cleanup of examples#263
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Use async/await in both examples. Use nullish coalescing.
marcoscaceres
commented
Nov 22, 2023
| PaymentRequest && | ||
| PaymentRequest.isSecurePaymentConfirmationAvailable && | ||
| await PaymentRequest.isSecurePaymentConfirmationAvailable(); | ||
| await PaymentRequest?.isSecurePaymentConfirmationAvailable(); |
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This is cool, I've never seen it before!
I think it's technically optional chaining (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining) rather than nullish coalescing (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing), right?
Does this work as written if PaymentRequest itself is not defined? (As opposed to isSecurePaymentConfirmationAvailable not being defined). It seemed not when I tried it in Firefox, but I may have been holding it wrong. I had to do:
window.PaymentRequest?.isSecurePaymentConfirmationAvailable();
Without the window, I just got:
PaymentRequest?.isSecurePaymentConfirmationAvailable()
Uncaught ReferenceError: PaymentRequest is not defined
<anonymous> debugger eval code:1
debugger eval code:1:1
kritsana841300
approved these changes
Jul 4, 2025
AKJUS
approved these changes
Jul 10, 2025
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Use async/await in both examples. Use nullish coalescing.
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