Why "\001" === "\u0001" is true in javascript?
<p>the code is:</p>

<pre><code>console.log("\1" === "\u0001");//true
console.log("\01" === "\x01");//true
console.log("\001" === "\u0001");//true
</code></pre>

<p>why  <code>"\001" === "\u0001"</code> is true,who can tell me why?</p>
