jquery ajax - how to handle the json response
<p>This is the response to my ajax call. I want to handle each array element to update the title of a corresponding button on my page that has the value of the Letter element. I need to replace the alert(response); with a loop over the json array.</p>

<p>{"COLUMNS":["PAGESNUM","LETTER"],"DATA":[["372","A"],["922","B"],["779","C"],["3‌​78","D"],["132","E"],["353","F"],["551","G"],["591","H"],["6","I"],["340","J"],["‌​261","K"],["314","l"],["837","M"],["88","N"],["120","O"],["303","P"],["14","Q"],["‌​355","R"],["762","S"],["235","T"],["12","U"],["44","V"],["581","W"],["49","Y"],["‌​19","Z"]]}</p>

<pre><code>$.ajax({
    type: "Get",
    url: "cfc/basic.cfc?method=CountUsersByLetter&amp;returnformat=json",
    data: "nbw=" + nbw,
    datatype: "html",
    success: function (response) {
        //usercount = parseInt(response.substring(0, 10));
        ///$(_$this.target).attr('title', usercount);
        alert(response);
    },
    error: function (xhr, textStatus, errorThrown) {
        alert('errorThrown');
    }
});
</code></pre>

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