# JSList 常見問題
### '$'was used before it was defind.
```
/*jslint browser: true*/
/*global $, jQuery, alert*/
```
### Missing 'use stict' statement.
```
'use strict'; 加前面
```
### Missing radix parameter.
> 缺少基數參數 parseint的第二個參數沒有指定；``
```
parseInt(on_id) 改為 parseInt(on_id, 10)
```
### Combine this with the previous 'var' statement.
> 結合以前的“var”語句
```
var on_id = $('nav ul li.on').index();
on_id = parseInt(on_id, 10) - 1;
var html = $("nav ul li:eq(" + on_id + ")").find("a").attr("data-href");
改為
var on_id, html;
on_id = $('nav ul li.on').index();
on_id = parseInt(on_id, 10) - 1;
html = $("nav ul li:eq(" + on_id + ")").find("a").attr("data-href");
改
```
### Expected '===' and instead saw '=='.
> 預期'==='，而是看到'==='。 "==="叫做嚴格運算符，"=="叫做相等運算符。
```
if ($(this).text() === "A")
改為
if ($(this).text() == "A")
```
