Optimize offline condition judgment

[zh-lx]

The purpose of this code is to judge whether the user is offline, so the !isOnline judgment condition should be placed on the outermost layer. In this way, one judgment logic can be reduced when isOnline is true.

Documentation / Examples

• Make sure the linting passes by running yarn lint

[timneutkens]

Thanks!

[ijjk]

Stats from current PR

Default Build (Increase detected ⚠️)

General Overall decrease ✓

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
buildDuration	12.5s	12.8s	⚠️ +213ms
buildDurationCached	3.2s	3.2s	⚠️ +15ms
nodeModulesSize	359 MB	359 MB	-244 B

Page Load Tests Overall increase ✓

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.995	3.01	⚠️ +0.01
/ avg req/sec	834.82	830.49	⚠️ -4.33
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.402	1.379	-0.02
/error-in-render avg req/sec	1782.96	1812.71	+29.75

Client Bundles (main, webpack, commons)

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
450.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.2 kB	42.2 kB	✓
main-HASH.js gzip	27.2 kB	27.2 kB	✓
webpack-HASH.js gzip	1.44 kB	1.44 kB	✓
Overall change	71.1 kB	71.1 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
_app-HASH.js gzip	1.37 kB	1.37 kB	✓
_error-HASH.js gzip	194 B	194 B	✓
amp-HASH.js gzip	312 B	312 B	✓
css-HASH.js gzip	326 B	326 B	✓
dynamic-HASH.js gzip	2.37 kB	2.37 kB	✓
head-HASH.js gzip	350 B	350 B	✓
hooks-HASH.js gzip	919 B	919 B	✓
image-HASH.js gzip	4.94 kB	4.94 kB	✓
index-HASH.js gzip	263 B	263 B	✓
link-HASH.js gzip	2.19 kB	2.19 kB	✓
routerDirect..HASH.js gzip	321 B	321 B	✓
script-HASH.js gzip	383 B	383 B	✓
withRouter-HASH.js gzip	318 B	318 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	14.3 kB	14.3 kB	✓

Client Build Manifests

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
_buildManifest.js gzip	459 B	459 B	✓
Overall change	459 B	459 B	✓

Rendered Page Sizes

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
index.html gzip	529 B	529 B	✓
link.html gzip	544 B	544 B	✓
withRouter.html gzip	525 B	525 B	✓
Overall change	1.6 kB	1.6 kB	✓

---

Default Build with SWC (Increase detected ⚠️)

General Overall decrease ✓

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
buildDuration	15.9s	17.9s	⚠️ +2.1s
buildDurationCached	3.2s	3.2s	⚠️ +38ms
nodeModulesSize	359 MB	359 MB	-244 B

Page Load Tests Overall increase ✓

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.886	2.956	⚠️ +0.07
/ avg req/sec	866.16	845.79	⚠️ -20.37
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.398	1.32	-0.08
/error-in-render avg req/sec	1788.02	1893.7	+105.68

Client Bundles (main, webpack, commons)

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
450.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.3 kB	42.3 kB	✓
main-HASH.js gzip	27.4 kB	27.4 kB	✓
webpack-HASH.js gzip	1.44 kB	1.44 kB	✓
Overall change	71.3 kB	71.3 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
_app-HASH.js gzip	1.35 kB	1.35 kB	✓
_error-HASH.js gzip	180 B	180 B	✓
amp-HASH.js gzip	305 B	305 B	✓
css-HASH.js gzip	321 B	321 B	✓
dynamic-HASH.js gzip	2.36 kB	2.36 kB	✓
head-HASH.js gzip	342 B	342 B	✓
hooks-HASH.js gzip	911 B	911 B	✓
image-HASH.js gzip	4.98 kB	4.98 kB	✓
index-HASH.js gzip	256 B	256 B	✓
link-HASH.js gzip	2.21 kB	2.21 kB	✓
routerDirect..HASH.js gzip	314 B	314 B	✓
script-HASH.js gzip	375 B	375 B	✓
withRouter-HASH.js gzip	309 B	309 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	14.3 kB	14.3 kB	✓

Client Build Manifests

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
_buildManifest.js gzip	458 B	458 B	✓
Overall change	458 B	458 B	✓

Rendered Page Sizes

	vercel/next.js canary	zh-lx/next.js perf-offline-judgment	Change
index.html gzip	530 B	530 B	✓
link.html gzip	542 B	542 B	✓
withRouter.html gzip	524 B	524 B	✓
Overall change	1.6 kB	1.6 kB	✓

Commit: e1088c4