分离工具函数

packages/artplayer/src/utils/file.js

@@ -0,0 +1,25 @@
+export function getExt(url) {
+    if (url.includes('?')) {
+        return getExt(url.split('?')[0]);
+    }
+
+    if (url.includes('#')) {
+        return getExt(url.split('#')[0]);
+    }
+
+    return url
+        .trim()
+        .toLowerCase()
+        .split('.')
+        .pop();
+}
+
+export function downloadFile(url, name) {
+    const elink = document.createElement('a');
+    elink.style.display = 'none';
+    elink.href = url;
+    elink.download = name;
+    document.body.appendChild(elink);
+    elink.click();
+    document.body.removeChild(elink);
+}