javascript problem: var a="1";b={a:a},the b variant isn't {"1":1}
<pre><code> var a="1";
 b={a:a},
</code></pre>

<p>the b variant isn't {"1":1},why will this happened?</p>

<p>also want to know if i want to get the result what i want ,how can i solve this problem</p>
