IT Xianyu
Feb 18, 2022 · Frontend Development
Understanding Object.keys Order and V8 Property Handling to Fix a wxml2canvas Bug
This article explains why a WeChat mini‑program’s share card lost its QR code due to incorrect assumptions about Object.keys ordering, dives into the ECMAScript specification and V8’s internal property storage, and shows how to modify wxml2canvas to correctly sort elements and avoid the bug.
FrontendJavaScriptObject.keys
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