src/containers/MomentViewer/getActiveIndex.js
export default function getActiveIndex(transcripts, currentMissionTime) {
if (
transcripts == null ||
transcripts.length < 1 ||
currentMissionTime == 0
) {
return -1;
}
let i;
for (i = 0; i < transcripts.length; i++) {
const metStart = transcripts[i].metStart;
if (currentMissionTime < metStart) {
if (i == 0) return i;
return i - 1;
}
}
return i - 1;
}