分离工具函数

packages/artplayer/src/utils/format.js

@@ -0,0 +1,11 @@
+export function clamp(num, a, b) {
+    return Math.max(Math.min(num, Math.max(a, b)), Math.min(a, b));
+}
+
+export function secondToTime(second) {
+    const add0 = num => (num < 10 ? `0${num}` : String(num));
+    const hour = Math.floor(second / 3600);
+    const min = Math.floor((second - hour * 3600) / 60);
+    const sec = Math.floor(second - hour * 3600 - min * 60);
+    return (hour > 0 ? [hour, min, sec] : [min, sec]).map(add0).join(':');
+}