fix: prevent firstLine being parsed as a string

hexojs · Aug 4, 2019 · 2a7f79f · 2a7f79f
1 parent 5005990
commit 2a7f79f
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/highlight.js b/lib/highlight.js
@@ -36,8 +36,8 @@ function highlightUtil(str, options = {}) {
   for (let i = 0, len = lines.length; i < len; i++) {
     let line = lines[i];
     if (tab) line = replaceTabs(line, tab);
-    numbers += `<span class="line">${firstLine + i}</span><br>`;
-    content += formatLine(line, firstLine + i, mark, options);
+    numbers += `<span class="line">${Number(firstLine) + i}</span><br>`;
+    content += formatLine(line, Number(firstLine) + i, mark, options);
   }
 
   let result = `<figure class="highlight${data.language ? ` ${data.language}` : ''}">`;