Clean

1import React, { useEffect } from "react";
2import {
3  useCurrentFrame,
4  useVideoConfig,
5  AbsoluteFill,
6  interpolate,
7  spring,
8  Sequence,
9  staticFile,
10  Audio,
11  Img,
12} from "remotion";
13
14// Mount-only useEffect with empty deps + a later expression containing a
15// non-empty array — regression coverage for the over-match Miguel reported:
16// the earlier regex spanned past `[]` and matched `[frame]` from `pick(...)`,
17// falsely flagging this clean fixture as having a blocker.
18function pick<T>(_key: string, items: T[]): T {
19  return items[0];
20}
21
22const TitleCard: React.FC = () => {
23  const frame = useCurrentFrame();
24  const { fps } = useVideoConfig();
25  useEffect(() => {
26    console.log("mounted");
27  }, []);
28  const _picked = pick("x", [frame]);
29  const opacity = interpolate(frame, [0, 15], [0, 1], { extrapolateRight: "clamp" });
30  const scale = spring({ frame, fps, config: { damping: 12 } });
31  return (
32    <AbsoluteFill style={{ justifyContent: "center", alignItems: "center" }}>
33      <div style={{ fontSize: 72, opacity, transform: `scale(${scale})` }}>Hello</div>
34      <Img src={staticFile("logo.png")} />
35    </AbsoluteFill>
36  );
37};
38
39export const MyComposition: React.FC = () => (
40  <AbsoluteFill>
41    <Sequence from={0} durationInFrames={90}>
42      <TitleCard />
43    </Sequence>
44    <Audio src={staticFile("music.mp3")} volume={0.5} />
45  </AbsoluteFill>
46);