declare variable while the variable name is a string?
<p>everyone!</p>

<p>I have an array containing some strings:</p>

<pre><code>strs = ['a1','a2','a3']
</code></pre>

<p>and an object is defined:</p>

<pre><code>o={}
</code></pre>

<p>I wanna add properties to <strong><em>o</em></strong> while the property name is the string in array <strong><em>strs</em></strong>
Any suggestion is appreciated</p>
