Move some frequently used things to constants

[JoviDeCroock]

This checks the performance of moving some longer strings to constants to avoid re-allocating in the critical path. Some of these could also optimise easier as the function gets shorter

[github-actions]

📊 Tachometer Benchmark Results

Summary

duration

• create10k: unsure 🔍 -0% - +1% (-0.11ms - +13.37ms)
  ^{preact-local vs preact-main}
• filter-list: unsure 🔍 -1% - +1% (-0.15ms - +0.14ms)
  ^{preact-local vs preact-main}
• hydrate1k: unsure 🔍 -4% - +1% (-2.85ms - +0.76ms)
  ^{preact-local vs preact-main}
• many-updates: unsure 🔍 -3% - +2% (-0.43ms - +0.34ms)
  ^{preact-local vs preact-main}
• replace1k: unsure 🔍 -1% - +2% (-0.69ms - +1.19ms)
  ^{preact-local vs preact-main}
• text-update: unsure 🔍 -2% - +6% (-0.04ms - +0.13ms)
  ^{preact-local vs preact-main}
• todo: unsure 🔍 -1% - +1% (-0.38ms - +0.47ms)
  ^{preact-local vs preact-main}
• update10th1k: unsure 🔍 -2% - +4% (-0.57ms - +1.20ms)
  ^{preact-local vs preact-main}

usedJSHeapSize

• create10k: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
  ^{preact-local vs preact-main}
• filter-list: unsure 🔍 -0% - +1% (-0.01ms - +0.02ms)
  ^{preact-local vs preact-main}
• hydrate1k: faster ✔ 9% - 17% (1.15ms - 2.37ms)
  ^{preact-local vs preact-main}
• many-updates: unsure 🔍 -1% - +0% (-0.03ms - +0.00ms)
  ^{preact-local vs preact-main}
• replace1k: unsure 🔍 -1% - +1% (-0.03ms - +0.02ms)
  ^{preact-local vs preact-main}
• text-update: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
  ^{preact-local vs preact-main}
• todo: unsure 🔍 -2% - +0% (-0.02ms - +0.00ms)
  ^{preact-local vs preact-main}
• update10th1k: unsure 🔍 -0% - +1% (-0.01ms - +0.02ms)
  ^{preact-local vs preact-main}

Results

create10k

• Browser: chrome-headless
• Sample size: 50
• Built by: CI #4121

• Commit: 532efc3

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	933.41ms - 946.17ms	-	unsure 🔍 -0% - +1% -0.11ms - +13.37ms
preact-main	930.98ms - 935.34ms	unsure 🔍 -1% - +0% -13.37ms - +0.11ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	24.84ms - 24.84ms	-	unsure 🔍 -0% - +0% -0.00ms - +0.00ms
preact-main	24.84ms - 24.84ms	unsure 🔍 -0% - +0% -0.00ms - +0.00ms	-

filter-list

• Browser: chrome-headless
• Sample size: 50
• Built by: CI #4121

• Commit: 532efc3

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	16.46ms - 16.74ms	-	unsure 🔍 -1% - +1% -0.15ms - +0.14ms
preact-main	16.57ms - 16.64ms	unsure 🔍 -1% - +1% -0.14ms - +0.15ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.65ms - 1.67ms	-	unsure 🔍 -0% - +1% -0.01ms - +0.02ms
preact-main	1.64ms - 1.66ms	unsure 🔍 -1% - +0% -0.02ms - +0.01ms	-

hydrate1k

• Browser: chrome-headless
• Sample size: 50
• Built by: CI #4121

• Commit: 532efc3

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	75.70ms - 78.60ms	-	unsure 🔍 -4% - +1% -2.85ms - +0.76ms
preact-main	77.11ms - 79.27ms	unsure 🔍 -1% - +4% -0.76ms - +2.85ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	11.29ms - 12.13ms	-	faster ✔ 9% - 17% 1.15ms - 2.37ms
preact-main	13.03ms - 13.91ms	slower ❌ 9% - 21% 1.15ms - 2.37ms	-

many-updates

• Browser: chrome-headless
• Sample size: 50
• Built by: CI #4121

• Commit: 532efc3

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	15.32ms - 15.81ms	-	unsure 🔍 -3% - +2% -0.43ms - +0.34ms
preact-main	15.31ms - 15.91ms	unsure 🔍 -2% - +3% -0.34ms - +0.43ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	4.49ms - 4.51ms	-	unsure 🔍 -1% - +0% -0.03ms - +0.00ms
preact-main	4.50ms - 4.52ms	unsure 🔍 -0% - +1% -0.00ms - +0.03ms	-

replace1k

• Browser: chrome-headless
• Sample size: 90
• Built by: CI #4121

• Commit: 532efc3

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	67.73ms - 69.05ms	-	unsure 🔍 -1% - +2% -0.69ms - +1.19ms
preact-main	67.47ms - 68.81ms	unsure 🔍 -2% - +1% -1.19ms - +0.69ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	3.56ms - 3.60ms	-	unsure 🔍 -1% - +1% -0.03ms - +0.02ms
preact-main	3.57ms - 3.60ms	unsure 🔍 -1% - +1% -0.02ms - +0.03ms	-

run-warmup-0

Version	Avg time	vs preact-local	vs preact-main
preact-local	30.96ms - 31.80ms	-	unsure 🔍 -3% - +2% -0.86ms - +0.62ms
preact-main	30.89ms - 32.11ms	unsure 🔍 -2% - +3% -0.62ms - +0.86ms	-

run-warmup-1

Version	Avg time	vs preact-local	vs preact-main
preact-local	36.66ms - 38.27ms	-	unsure 🔍 -3% - +3% -1.07ms - +1.13ms
preact-main	36.69ms - 38.19ms	unsure 🔍 -3% - +3% -1.13ms - +1.07ms	-

run-warmup-2

Version	Avg time	vs preact-local	vs preact-main
preact-local	30.20ms - 31.14ms	-	unsure 🔍 -4% - +1% -1.20ms - +0.23ms
preact-main	30.62ms - 31.70ms	unsure 🔍 -1% - +4% -0.23ms - +1.20ms	-

run-warmup-3

Version	Avg time	vs preact-local	vs preact-main
preact-local	23.23ms - 23.71ms	-	unsure 🔍 -2% - +1% -0.49ms - +0.24ms
preact-main	23.32ms - 23.87ms	unsure 🔍 -1% - +2% -0.24ms - +0.49ms	-

run-warmup-4

Version	Avg time	vs preact-local	vs preact-main
preact-local	21.96ms - 22.20ms	-	unsure 🔍 -1% - +0% -0.32ms - +0.06ms
preact-main	22.06ms - 22.35ms	unsure 🔍 -0% - +1% -0.06ms - +0.32ms	-

run-final

Version	Avg time	vs preact-local	vs preact-main
preact-local	20.56ms - 21.19ms	-	unsure 🔍 -2% - +2% -0.36ms - +0.51ms
preact-main	20.50ms - 21.10ms	unsure 🔍 -2% - +2% -0.51ms - +0.36ms	-

text-update

• Browser: chrome-headless
• Sample size: 230
• Built by: CI #4121

• Commit: 532efc3

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	2.10ms - 2.22ms	-	unsure 🔍 -2% - +6% -0.04ms - +0.13ms
preact-main	2.05ms - 2.17ms	unsure 🔍 -6% - +2% -0.13ms - +0.04ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.10ms - 1.11ms	-	unsure 🔍 -0% - +0% -0.00ms - +0.00ms
preact-main	1.11ms - 1.11ms	unsure 🔍 -0% - +0% -0.00ms - +0.00ms	-

todo

• Browser: chrome-headless
• Sample size: 50
• Built by: CI #4121

• Commit: 532efc3

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	33.77ms - 34.41ms	-	unsure 🔍 -1% - +1% -0.38ms - +0.47ms
preact-main	33.76ms - 34.33ms	unsure 🔍 -1% - +1% -0.47ms - +0.38ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.22ms - 1.22ms	-	unsure 🔍 -2% - +0% -0.02ms - +0.00ms
preact-main	1.22ms - 1.24ms	unsure 🔍 -0% - +2% -0.00ms - +0.02ms	-

update10th1k

• Browser: chrome-headless
• Sample size: 50
• Built by: CI #4121

• Commit: 532efc3

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	32.44ms - 33.70ms	-	unsure 🔍 -2% - +4% -0.57ms - +1.20ms
preact-main	32.13ms - 33.38ms	unsure 🔍 -4% - +2% -1.20ms - +0.57ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	3.47ms - 3.50ms	-	unsure 🔍 -0% - +1% -0.01ms - +0.02ms
preact-main	3.47ms - 3.49ms	unsure 🔍 -1% - +0% -0.02ms - +0.01ms	-

_{tachometer-reporter-action v2 for CI}

[github-actions]

Size Change: +52 B (+0.08%)

Total Size: 62.6 kB

Filename	Size	Change
dist/preact.js	4.74 kB	+7 B (+0.15%)
dist/preact.min.js	4.76 kB	+13 B (+0.27%)
dist/preact.min.module.js	4.77 kB	+2 B (+0.04%)
dist/preact.min.umd.js	4.79 kB	+12 B (+0.25%)
dist/preact.module.js	4.76 kB	+6 B (+0.13%)
dist/preact.umd.js	4.8 kB	+12 B (+0.25%)

ℹ️ View Unchanged

Filename	Size
compat/dist/compat.js	4.13 kB
compat/dist/compat.module.js	4.06 kB
compat/dist/compat.umd.js	4.2 kB
debug/dist/debug.js	3.82 kB
debug/dist/debug.module.js	3.83 kB
debug/dist/debug.umd.js	3.9 kB
devtools/dist/devtools.js	260 B
devtools/dist/devtools.module.js	274 B
devtools/dist/devtools.umd.js	346 B
hooks/dist/hooks.js	1.52 kB
hooks/dist/hooks.module.js	1.56 kB
hooks/dist/hooks.umd.js	1.6 kB
jsx-runtime/dist/jsxRuntime.js	973 B
jsx-runtime/dist/jsxRuntime.module.js	947 B
jsx-runtime/dist/jsxRuntime.umd.js	1.05 kB
test-utils/dist/testUtils.js	451 B
test-utils/dist/testUtils.module.js	456 B
test-utils/dist/testUtils.umd.js	536 B

_{compressed-size-action}

[coveralls]

coverage: 99.617% (+0.001%) from 99.616%
when pulling 532efc3 on move-things-to-constants
into cfd2f41 on main.

[JoviDeCroock]

Memory bump seems worth the bytes