check if value exists in 2D array
<p>I have a 2d array in the format</p>

<pre><code>emi_309 | present | weak   | 6
emi_310 | present | strong | 9
emi_319 | present | medium | 8
emi_315 | present | weak   | 5
</code></pre>

<p>I want to check if a value exists in the first column using a simple function</p>

<p>E.g, check if emi_77 exists in the first column</p>

<p>I came across <code>$.inArray(value, array)</code> but this function is for a 1d array only.</p>

<p>Is there something similar for 2d array</p>
