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Issues list

Compiler option for bundler to provide optimization info about asset import perf
#13298 opened Sep 17, 2024 by benmccann
Track binding values feature request perf
#13266 opened Sep 16, 2024 by Rich-Harris 5.x
4
Collapse inlined variables into templates perf
#13233 opened Sep 13, 2024 by benmccann
Hoist perf
#11843 opened May 30, 2024 by benmccann 5.x
Eliminate unnecessary if statements perf
#10049 opened Jan 1, 2024 by benmccann 5.x
4
Unnecessarily calling $.stringify on strings compiler Changes relating to the compiler perf
#10031 opened Dec 29, 2023 by benmccann 5.x
6
Inline constant expressions from mustache tags into template perf
#9524 opened Nov 17, 2023 by benmccann 5.x
class attributes on meta elements in head are useless css Stuff related to Svelte's built-in CSS handling perf
#7940 opened Oct 14, 2022 by enda
flip animation causes layout thrashing perf runtime Changes relating to runtime APIs
#6733 opened Sep 16, 2021 by wartmanm
Perf: Frequently updating reactive variables cause garbage collection pressure & hitching perf temp-stale
#4459 opened Feb 24, 2020 by Ryan-McMillan
1
Prevent multiple style recalculations and improve performance by grouping DOM reads and writes perf
#3768 opened Oct 22, 2019 by rikschennink
9
A lot of empty text nodes - I mean A LOT - performance issue awaiting submitter needs a reproduction, or clarification feature request perf stale-bot
#3586 opened Sep 18, 2019 by neuronetio
2
16
Idle until urgent, what about a queue for improving render sense of speed? perf temp-stale
#2979 opened Jun 8, 2019 by frederikhors
14
SVG baseVal compiler Changes relating to the compiler feature request perf stale-bot temp-stale
#1528 opened Jun 6, 2018 by Rich-Harris 5.x
5
ProTip! What’s not been updated in a month: updated:<2025-03-29.