1 files changed, 20 insertions, 0 deletions
diff --git a/blog/assets/js/theme.js b/blog/assets/js/theme.js
new file mode 100644
index 0000000..9f1660c
--- /dev/null
+++ b/blog/assets/js/theme.js
@@ -0,0 +1,20 @@
+"use strict"
+const THEME_KEY = "data-theme";
+
+function updateTheme() {
+    let theme = localStorage.getItem(THEME_KEY);
+    if (theme != null) {
+        document.documentElement.setAttribute(THEME_KEY, theme)
+    }
+}
+
+function setTheme(theme) {
+    localStorage.setItem(THEME_KEY, theme);
+    updateTheme();
+}
+
+function setThemeExtend() {
+    document.documentElement.setAttribute("data-extended-theme", "true")
+}
+
+updateTheme();
+\ No newline at end of file