I desperately need a way to pass just a string of data

[Pops Vlogs]

I need a way to pass in a string that is formatted as you'll see in the code below into the chart. if anybody could help out that will be amazing!!!!

var points = "['Mon', 20, 28, 38, 45],['Tue', 31, 38, 55, 66],['Wed', 50, 55, 77, 80],['Thu', 77, 77, 66, 50],['Fri', 68, 66, 22, 15]"

google.setOnLoadCallback(drawChart);

function drawChart($points) {

    var data = google.visualization.arrayToDataTable([

      $points

      // Treat first row as data as well.

    ], true);

    var options = {

      legend:'none'

    };

    var chart = new google.visualization.CandlestickChart(document.getElementById('chart_div'));

    chart.draw(data, options);

}

the highlighted bit is the string I cant get to work...

[Sergey Grabkovsky]

Hi Pops,

Is this all JavaScript?

Firstly, you're declaring that $points is an argument to drawChart, but are never actually passing it in. You'll have better luck just using your global variable directly and figuring out how to generalize later.

Secondly, you can't just interpolate a string and turn it into code. You'll need to take some explicit action, like calling JSON.parse (to parse the JSON that you specified).

Third, you're not going to be able to get anywhere with your "points" string as is. Currently, it is not a valid object expression, and the comments will simply cause the last thing to be executed (or maybe just cause an error). You need to surround your entire points string in brackets to make it an array, like so:

var points = "[['Mon', 20, 28, 38, 45],['Tue', 31, 38, 55, 66],['Wed', 50, 55, 77, 80],['Thu', 77, 77, 66, 50],['Fri', 68, 66, 22, 15]]";

Which would also mean that you don't need the extra brackets around arrayToDataTable's argument. So putting it all together, you would get:

var data = google.visualization.arrayToDataTable(JSON.parse(points), true);

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	•	Sergey Grabkovsky
	•	Software Engineer
	•	Google, Inc
	•	gra...@google.com