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D3 timer bug (?) 1
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<body> | |
<h1>Open the console and look for messages</h1> | |
<script src="//d3js.org/d3.v4.min.js"></script> | |
<script> | |
var period = 1000; | |
var i1 = d3.interval(f1, period); | |
var n = 1; | |
var m = 100000000; | |
var t0 = t1 = Date.now(); | |
function f1(elapsed) { | |
var now = Date.now() | |
console.log('f1 now =', now, 'elapsed =', elapsed, 'real elapsed =', now - t0, 'elapsed error =', now - t0 - elapsed, 'interval error =', now - t1 - period); | |
console.time('f1 ' + n); | |
for (i = 0; i < n; i++) | |
; | |
console.timeEnd('f1 ' + n); | |
t1 = now; | |
n = m; | |
m = m / 10; | |
if (n < 1) { | |
i1.stop(); | |
} | |
} | |
</script> |
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