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Learn/JavaScript/Objects, Classes, and Advanced Patterns
JavaScript•Objects, Classes, and Advanced Patterns

Google Chart

From simple line charts to complex hierarchical tree maps, the Google Chart gallery provides a large number of ready-to-use chart types:

  • Scatter Chart
  • Line Chart
  • Bar / Column Chart
  • Area Chart
  • Pie Chart
  • Donut Chart
  • Org Chart
  • Map / Geo Chart

How to Use Google Chart?

  1. Add a <div> element (with a unique id) in the HTML where you want to display the chart:
<div id="myChart" style="max-width:700px; height:400px"></div>
  1. Add a link to the charts loader:
<script src="https://www.gstatic.com/charts/loader.js"></script>
  1. Load the Graph API, and add the function to run when the API is loaded:
<script>
google.charts.load('current',{packages:['corechart']});
google.charts.setOnLoadCallback(drawChart);
// Your Function
function drawChart() {
 ...
}
</script>

Bar Charts

Source Code

function drawChart() {
  // Set Data
  const data = google.visualization.arrayToDataTable([ ['Contry', 'Mhl'], ['Italy', 55], ['France', 49], ['Spain', 44], ['USA', 24], ['Argentina', 15]
  ]);
// Set Options
const options = {
  title: 'World Wide Wine Production'
};
// Draw
const chart = new google.visualization.BarChart(document.getElementById('myChart'));
chart.draw(data, options);
}

Pie Charts

To convert a Bar Chart to a Pie chart, just replace: google.visualization. BarChart with: google.visualization. PieChart

Runnable example

const chart = new google.visualization.
PieChart
(document.getElementById('myChart'));

3D Pie

To display the Pie in 3D, just add is3D: true to the options:

Runnable example

const options = {
  title: 'World Wide Wine Production', is3D: true
};

Line Graph

Source Code

function drawChart() {
  // Set Data
  const data = google.visualization.arrayToDataTable([ ['Price', 'Size'], [50,7],[60,8],[70,8],[80,9],[90,9],[100,9], [110,10],[120,11],[130,14],[140,14],[150,15]
  ]);
// Set Options
const options = {
  title: 'House Prices vs Size', hAxis: {title: 'Square Meters'}, vAxis: {title: 'Price in Millions'}, legend: 'none'
};
// Draw Chart
const chart = new google.visualization.LineChart(document.getElementById('myChart'));
chart.draw(data, options);
}

Scatter Plots

To scatter plot the same data, change google.visualization to ScatterChart:

Runnable example

const chart = new google.visualization.ScatterChart(document.getElementById('myChart'));

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