perf: improve page loading time

public/script/utils.js

@@ -1,3 +1,29 @@
+function humanFileSize(bytes, si = false, dp = 1) {
+  const thresh = si ? 1000 : 1024;
+
+  bytes = bytes / 8;
+
+  if (Math.abs(bytes) < thresh) {
+    return bytes + "B";
+  }
+
+  const units = si
+    ? ["kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"]
+    : ["KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"];
+  let u = -1;
+  const r = 10 ** dp;
+
+  do {
+    bytes /= thresh;
+    ++u;
+  } while (
+    Math.round(Math.abs(bytes) * r) / r >= thresh &&
+    u < units.length - 1
+  );
+
+  return bytes.toFixed(dp) + "" + units[u];
+}
+
 function urlRel2abs(url) {
   /* Only accept commonly trusted protocols:
    * Only data-image URLs are accepted, Exotic flavours (escaped slash,
@@ -110,14 +136,13 @@ function parseGithubUrl(url) {
   }
 }
 
-marked.use(
-  markedEmoji({
-    emojis: githubEmojis,
-    unicode: false,
-  })
-);
-
 function renderMD(md, baseUrlValue) {
+  marked.use(
+    markedEmoji({
+      emojis: githubEmojis,
+      unicode: false,
+    })
+  );
   md = contentAbs2Relative(md);
   const renderer = new marked.Renderer();