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[performance] faster major tick calculation #6307

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merged 3 commits into from Jun 19, 2019

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benmccann
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@benmccann benmccann commented May 29, 2019

This is a major speedup when ticks.source is data or labels. The speed up is because it avoids calling startOf on every tick, which is expensive since it creates a moment object and does a non-trivial calculation. It's also necessary to implement #6274 efficiently. I'll rebase that PR and reopen a re-worked version of it after this change and #6304 are merged

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@etimberg etimberg merged commit b31980e into chartjs:master Jun 19, 2019
@nagix nagix added this to the Version 2.9 milestone Jun 19, 2019
exwm pushed a commit to exwm/Chart.js that referenced this pull request Apr 30, 2021
* [performance] faster major tick calculation

* Address review comments

* Replace isNaN
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4 participants