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chrome-firefox-versions.html
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chrome-firefox-versions.html
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<!DOCTYPE html>
<html>
<head>
<title>Chrome vs Firefox versions</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/c3/0.4.17/c3.min.css">
</head>
<body>
<h3>chartjs</h3>
<canvas id="myChart" width="400" height="200"></canvas>
<h3>c3js</h3>
<div id="chart"></div>
<script src="https://unpkg.com/moment/min/moment.min.js"></script>
<script src="https://unpkg.com/chart.js/dist/Chart.min.js"></script>
<script src="https://unpkg.com/d3/dist/d3.min.js"></script>
<script src="https://unpkg.com/c3/c3.min.js"></script>
<script>
load()
.then(({chromeData, ffData}) => {
var ctx = document.getElementById("myChart").getContext('2d');
var myChart = new Chart(ctx, {
type: 'line',
data: {
datasets: [{
label: 'Chrome versions',
borderColor: '#00f',
data: chromeData,
borderWidth: 1,
fill: false,
}, {
label: 'Firefox versions',
borderColor: '#f00',
data: ffData,
borderWidth: 1,
fill: false,
}]
},
options: {
responsive: true,
title:{
display:true,
text:'Chrome Vs Firefox versions'
},
tooltips: {
mode: 'x',
intersect: false,
},
hover: {
mode: 'nearest',
intersect: true
},
scales: {
xAxes: [{
type: "time",
display: true,
time: {format: 'YYYY-MM-DD'},
scaleLabel: {
display: true,
labelString: 'Date'
}
}],
yAxes: [{
ticks: {
beginAtZero:true
}
}]
}
}
});
var chart = c3.generate({
data: {
xs: {
'chrome': 'x1',
'firefox': 'x2',
},
columns: [
['x1'].concat(chromeData.map(o => o.x)),
['x2'].concat(ffData.map(o => o.x)),
['chrome'].concat(chromeData.map(o => o.y)),
['firefox'].concat(ffData.map(o => o.y))
]
},
axis: {
x: {
type: 'timeseries',
tick: {
format: '%Y-%m-%d'
}
}
}
});
});
function load() {
if (localStorage.chromeVsFirefoxVersions) {
var cache = JSON.parse(localStorage.chromeVsFirefoxVersions);
if (Date.now() < cache.time + 7*86.4e6) {
return Promise.resolve(cache.data);
}
}
return Promise.all([
fetch('https://cors-anywhere.herokuapp.com/https://en.wikipedia.org/wiki/Google_Chrome_release_history').then(r => r.text()),
fetch('https://cors-anywhere.herokuapp.com/https://en.wikipedia.org/wiki/Firefox_release_history').then(r => r.text())
])
.then(r => {
const [chromeDoc, ffDoc] = r.map(x => new DOMParser().parseFromString(x, "text/html"));
const chromeT = chromeDoc.querySelectorAll('table.wikitable')[1];
const chromeM = Array.from(chromeT.rows).slice(1, -1).map(tr => [tr.cells[0].textContent, tr.cells[1].textContent]);
const chromeD = transpose(chromeM);
const chromeData = chromeD[1].map((d,i) => ({
x: (d.match(/\d{4}-\d{2}-\d{2}/)||[])[0],
y: +chromeD[0][i].match(/\d+\.\d+/)
}));
const ffTs = Array.from(ffDoc.querySelectorAll('table.wikitable.mw-collapsible'));
const ffM =ffTs.flatMap(t => Array.from(t.rows).slice(1).filter(tr=>tr.cells.length>=2 && tr.cells[0].nodeName==='TD').map(tr => [tr.cells[0].textContent.trim(), tr.cells[1].textContent.trim()]).filter(([v]) => /^\d+\.\d+/));
const ffD=transpose(ffM)
const ffData = ffD[1].map((d, i) => ({
x: new Date(d.split('(')[0]).toJSON().slice(0, 10),
y: +ffD[0][i].match(/\d+\.\d+/)
}));
localStorage.chromeVsFirefoxVersions = JSON.stringify({time: Date.now(), data: {chromeData, ffData}});
return {chromeData, ffData};
});
}
function transpose(a) {
return Object.keys(a[0]).map(i=> a.map(r => r[i]));
}
</script>
</body>
</html>