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Merge pull request Expensify#48404 from callstack-internal/hur/perf/p…
…atch-date-fns-tz [NoQA] perf: add patch for date-fns-tz which reduces the execution time of getDateTimeFormat by ~84%
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| diff --git a/node_modules/date-fns-tz/_lib/tzTokenizeDate/index.js b/node_modules/date-fns-tz/_lib/tzTokenizeDate/index.js | ||
| index 9222a61..8540224 100644 | ||
| --- a/node_modules/date-fns-tz/_lib/tzTokenizeDate/index.js | ||
| +++ b/node_modules/date-fns-tz/_lib/tzTokenizeDate/index.js | ||
| @@ -59,20 +59,23 @@ function hackyOffset(dtf, date) { | ||
|
|
||
| var dtfCache = {}; | ||
|
|
||
| +// New browsers use `hourCycle`, IE and Chrome <73 does not support it and uses `hour12` | ||
| +const testDateFormatted = new Intl.DateTimeFormat('en-US', { | ||
| + hourCycle: 'h23', | ||
| + timeZone: 'America/New_York', | ||
| + year: 'numeric', | ||
| + month: '2-digit', | ||
| + day: '2-digit', | ||
| + hour: '2-digit', | ||
| + minute: '2-digit', | ||
| + second: '2-digit', | ||
| +}).format(new Date('2014-06-25T04:00:00.123Z')) | ||
| +const hourCycleSupported = | ||
| + testDateFormatted === '06/25/2014, 00:00:00' || | ||
| + testDateFormatted === '06/25/2014 00:00:00' | ||
| + | ||
| function getDateTimeFormat(timeZone) { | ||
| if (!dtfCache[timeZone]) { | ||
| - // New browsers use `hourCycle`, IE and Chrome <73 does not support it and uses `hour12` | ||
| - var testDateFormatted = new Intl.DateTimeFormat('en-US', { | ||
| - hour12: false, | ||
| - timeZone: 'America/New_York', | ||
| - year: 'numeric', | ||
| - month: 'numeric', | ||
| - day: '2-digit', | ||
| - hour: '2-digit', | ||
| - minute: '2-digit', | ||
| - second: '2-digit' | ||
| - }).format(new Date('2014-06-25T04:00:00.123Z')); | ||
| - var hourCycleSupported = testDateFormatted === '06/25/2014, 00:00:00' || testDateFormatted === '06/25/2014 00:00:00'; | ||
| dtfCache[timeZone] = hourCycleSupported ? new Intl.DateTimeFormat('en-US', { | ||
| hour12: false, | ||
| timeZone: timeZone, | ||
| diff --git a/node_modules/date-fns-tz/esm/_lib/tzTokenizeDate/index.js b/node_modules/date-fns-tz/esm/_lib/tzTokenizeDate/index.js | ||
| index cc1d143..17333cc 100644 | ||
| --- a/node_modules/date-fns-tz/esm/_lib/tzTokenizeDate/index.js | ||
| +++ b/node_modules/date-fns-tz/esm/_lib/tzTokenizeDate/index.js | ||
| @@ -48,23 +48,24 @@ function hackyOffset(dtf, date) { | ||
| // to get deterministic local date/time output according to the `en-US` locale which | ||
| // can be used to extract local time parts as necessary. | ||
| var dtfCache = {} | ||
| + | ||
| +// New browsers use `hourCycle`, IE and Chrome <73 does not support it and uses `hour12` | ||
| +const testDateFormatted = new Intl.DateTimeFormat('en-US', { | ||
| + hourCycle: 'h23', | ||
| + timeZone: 'America/New_York', | ||
| + year: 'numeric', | ||
| + month: '2-digit', | ||
| + day: '2-digit', | ||
| + hour: '2-digit', | ||
| + minute: '2-digit', | ||
| + second: '2-digit', | ||
| +}).format(new Date('2014-06-25T04:00:00.123Z')) | ||
| +const hourCycleSupported = | ||
| + testDateFormatted === '06/25/2014, 00:00:00' || | ||
| + testDateFormatted === '06/25/2014 00:00:00' | ||
| + | ||
| function getDateTimeFormat(timeZone) { | ||
| if (!dtfCache[timeZone]) { | ||
| - // New browsers use `hourCycle`, IE and Chrome <73 does not support it and uses `hour12` | ||
| - var testDateFormatted = new Intl.DateTimeFormat('en-US', { | ||
| - hour12: false, | ||
| - timeZone: 'America/New_York', | ||
| - year: 'numeric', | ||
| - month: 'numeric', | ||
| - day: '2-digit', | ||
| - hour: '2-digit', | ||
| - minute: '2-digit', | ||
| - second: '2-digit', | ||
| - }).format(new Date('2014-06-25T04:00:00.123Z')) | ||
| - var hourCycleSupported = | ||
| - testDateFormatted === '06/25/2014, 00:00:00' || | ||
| - testDateFormatted === '06/25/2014 00:00:00' | ||
| - | ||
| dtfCache[timeZone] = hourCycleSupported | ||
| ? new Intl.DateTimeFormat('en-US', { | ||
| hour12: false, |