jquery - How to read data in json file in javascript to use it for google charts? -


i have data in path static/data.json.i trying plot chart using google charts.i want take out data in data.json file , use google charts.

data.json given below

data = '[{"k": "ram" , "v":0.515625},{"k": "camera" , "v":0.515625},{"k": "design" , "v":0.05},{"k": "processor" , "v":0},]';

my html code in template/isworked.html.

below code isworked.html

<html>    <head>      <!--load ajax api-->      <script type="text/javascript" src="https://www.google.com/jsapi"></script>      <script src="http://code.jquery.com/jquery-1.7.1.min.js"></script>      <script type="application/json" src="static/d.json"></script>            <script type="text/javascript">  	        // load visualization api , piechart package.        google.load('visualization', '1.0', {'packages':['corechart']});          // set callback run when google visualization api loaded.        google.setonloadcallback(drawchart);          // callback creates , populates data table,        // instantiates pie chart, passes in data ,        // draws it.                    	var mydata = json.parse(data);    	function drawchart() {  	          // create data table.                              //loading data json          var data = new google.visualization.datatable();         	data.addcolumn('string', 'feature');          data.addcolumn('number', 'positive');       	var f,n;          for(var = 0 ; i<data.length;i++){          	f = data[i].k          	n = data[i].v          	data.addrows([[f,n]])          }                    // set chart options          var options = {'title':'pie chart',                         'width':800,                         'height':700};            // instantiate , draw our chart, passing in options.          var chart = new google.visualization.piechart(document.getelementbyid('chart_div'));          chart.draw(data, options);              	  }      </script>    </head>

i not able plot graph. data.json generated python script. running everyting using flask framework in ubuntu

i have no experience in topic. can me?

uberkael correct.

update: corrected multiple problems code , data, e.g., trailing comma in data. works ... click "run code snippet" button.

"mydata" problem. attempting use data before json file has loaded. triggers error. , mydata not used anything. need add div hold pie chart. code snippet below works, json data incorrect drawing pie chart. correct data , should work you.

<!doctype html>  	<html>  	<head>      <script type="text/javascript" src="https://www.google.com/jsapi"></script>      <script src="http://code.jquery.com/jquery-1.7.1.min.js"></script>      <script type="text/javascript">  	    var mydata = [{"k": "ram" , "v":0.515625},{"k": "camera" , "v":0.515625},{"k": "design" , "v":0.05},{"k": "processor" , "v": 0}];      </script>      <script type="text/javascript">  		google.load('visualization', '1.0', {'packages':['corechart']});  		google.setonloadcallback(drawchart);  	  		function drawchart() {  	        var data = new google.visualization.datatable();  	       	data.addcolumn('string', 'feature');  	        data.addcolumn('number', 'positive');  	     	var f,n;  	        for(var = 0 ; i<mydata.length;i++){  	        	f = mydata[i].k  	        	n = mydata[i].v  	        	data.addrows([[f,n]])  	        }  	        var options = {'title':'pie chart', 'width':800, 'height':700};  	        var chart = new google.visualization.piechart(document.getelementbyid('chart_div'));  	        chart.draw(data, options);  		}      </script>  	</head>  	<body>  		<div id="chart_div"></div>  	</body>  	</html>


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