title: what browsers do not support native forEach, filter, every and so on
body: <p>After reading documentation of <a href="http://underscorejs.org" rel="nofollow"><code>underscore.js</code></a> I found (to my surprise) that actually not all browsers support </p>
  
  <ul>
  <li><a href="http://underscorejs.org/#each" rel="nofollow"><code>forEach</code></a></li>
  <li><a href="http://underscorejs.org/#filter" rel="nofollow"><code>filter</code></a></li>
  <li><a href="http://underscorejs.org/#every" rel="nofollow"><code>every</code></a></li>
  <li><a href="http://underscorejs.org/#some" rel="nofollow"><code>some</code></a></li>
  </ul>
  
  <p>methods. Previously I thought that these methods are implemented everywhere. Checking what browsers does not support them, did not give me any information: <code>my chrome, IE9, firefox 13</code> all supports them. </p>
  
  <p>So where can I find what browsers support them and may be what other methods are not supported everywhere?</p>
  
  <p>P.S I am sorry, I think I confused someone with my question. I know that all browsers support underscore's foreach. In the question I refer to native methods. </p>