title: how to use JSON Data in chart.js?
body: <p>hi i have been trying to use data from MYSQL database and use them to create graphical chart with chart.js. i encoded data into JSON data( through a php file name data1.php), now i need to convert these Json data back to array using Jquery or javascript.. i dont have much knowledge about AJAX.. so could u help me out??</p>
  
  <p>data1.php produces JSON data as</p>
  
  <pre><code>[{"company_name":"project A","present_worth":"81531.946062978"},{"company_name":"project B","present_worth":"67313.916593765"},{"company_name":"project c","present_worth":"92440.723376746"}]
  </code></pre>
  
  <p>i need value of present_worth in an array </p>
  
  <p>this is the script used to create bargraph.. instead of custom data (for eg data : [65,59,90,81,56,55,40])given here i want an array here with JSON data.</p>
  
  <pre><code>&lt;script type="text/javascript"&gt;
  
          function bar(){
  
          var barChartData = {
              labels :["January","February","March","April","May","June","July"],datasets : [
                  {
                      fillColor : "rgba(220,280,220,0.5)",
                      strokeColor : "rgba(220,220,220,1)",
                      data : [65,59,90,81,56,55,40]
  
                  },
                  {
                      fillColor : "rgba(151,187,205,0.5)",
                      strokeColor : "rgba(151,187,205,1)",
                      data : [28,48,40,19,96,27,100]
                  }
              ]
          };
      var myLine = new Chart(document.getElementById("canvas").getContext("2d")).Bar(barChartData);
  }
  &lt;/script&gt;
  </code></pre>