zloirock/core-js

requestAnimationFrame polyfill

Open

#1,523 建立於 2026年3月16日

在 GitHub 查看
 (1 留言) (0 反應) (0 負責人)JavaScript (23,771 star) (1,609 fork)batch import
enhancementhelp wantedweb standards

描述

Is there plans to support requestAnimationFrame?

The polyfill plans, if planned I propose to be as follows---

  • Ancient webkit and firefox: redirect to mozRAF, webkitRAF (RAF is abbreviated) / mozCAF, webkit CRAF, etc.
  • Older broswers / node: Store a list of callbacks, pump them every 16ms (so all usages of RAF animates at the same time)

貢獻者指南

技術棧
javascript
領域
frontendperformance
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
fresh
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
basic JavaScriptunderstanding of requestAnimationFrame
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
70
研究方向
The issue proposes a requestAnimationFrame polyfill with a clear implementation plan for ancient WebKit/Firefox and older browsers/Node. However, there is no maintainer response yet. Check the repository's contribution guidelines and any existing discussion in related issues or PRs. Look at core js's existing polyfill patterns (e.g., for other timer functions) to ensure consistency. The file likely to be modified is `modules/web.timers.js` or a new module. Verify if the maintainer is open to adding this polyfill by reviewing comments or asking in the issue.