增加判断浏览器是否支持Async和Await的方法

2020-06-06 21:00:08 +08:00 · 2020-06-06 21:00:08 +08:00 · 82354af6a9
commit 82354af6a9
parent 17d50089a3
1 changed files with 10 additions and 0 deletions
--- a/js/asyncSupport
+++ b/js/asyncSupport
@ -0,0 +1,10 @@
+//判断浏览器是否支持Async和Await
+function isAsyncAwaitSupport() {
+    let func;
+    try {
+        eval("func = async function(){};");
+    } catch (e) {
+        return false;
+    }
+   return Object.getPrototypeOf(func).constructor != null;
+}