misc(treemap): highlight treemap node on mouse hover table row#12483
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adamraine
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May 17, 2021
| this.viewModes; | ||
| /** @type {RenderState=} */ | ||
| this.previousRenderState; | ||
| /** @type {WeakMap<HTMLElement, LH.Treemap.Node>} */ |
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Out of curiosity, why a WeakMap if it's recreated with every new version of the table? To me it still signals something special is going on so be careful while reading, but it's probably actually a good default to use when you don't need to iterate and perf isn't a big concern...
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In addition to different bundle selector values re-creating the table, scrolling also recreates rows. They are all lazily rendered. So it's good that scrolling doesn't eventually result in OOM (after n months or whatever) :)
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also agree it's just a good default
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ref #11254