Use const for symbol when indexing. PR911

2019-06-01 19:40:01 +08:00 · 2019-06-01 19:40:01 +08:00 · 1eed25898c
commit 1eed25898c
parent f7d6b38f07
1 changed files with 1 additions and 1 deletions
--- a/doc/handbook/Symbols.md
+++ b/doc/handbook/Symbols.md
@ -22,7 +22,7 @@ sym2 === sym3; // false, symbols是唯一的
 像字符串一样，symbols也可以被用做对象属性的键。

 ```ts
-let sym = Symbol();
+const sym = Symbol();

 let obj = {
    [sym]: "value"