Looking through the promise code in v8 source code, I noticed a lot of functions that starts with %, what are those? do they have any special meaning?
example here https://chromium.googlesource.com/v8/v8/+/3.29.45/src/promise.js?autodive=0%2F like %DebugPushPromise
They're internal built-in runtime functions . More info here: https://v8.dev/docs/builtin-functions
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