microsoft / TypeScript
File Age

File age measurements show the distribution of file ages (days since the first commit) and the recency of file updates (days since the latest commit).

Summary
  • Number of files: 490
  • Daily file updates (only one update per file and date counted): 70570
  • First update: 2014-07-09
  • Latest update: 2022-01-29
  • Days between first and latest update: 2762 (394 weeks, estimated 1970 working days)
  • Active days (at least one file change): 2524
  • Data:
File Change History Overall
File Age Distribution Overall
Days since first update
  • There are 490 files with 240,473 lines of code in files.
    • 449 files that are 366+ days old (230,336 lines of code)
    • 31 files that are 181-365 days old (8,906 lines of code)
    • 10 files that are 91-180 days old (1,231 lines of code)
    • 0 files that are 31-90 days old (0 lines of code)
    • 0 files that are 1-30 days old (0 lines of code)
95% | 3% | <1% | 0% | 0%
Legend:
366+
181-365
91-180
31-90
1-30
Latest Change Distribution Overall
Days since last update
  • There are 490 files with 240,473 lines of code in files.
    • 165 files have been last changed 366+ days ago (15,387 lines of code)
    • 110 files have been last changed 181-365 days ago (38,516 lines of code)
    • 74 files have been last changed 91-180 days ago (28,504 lines of code)
    • 57 files have been last changed 31-90 days ago (22,009 lines of code)
    • 84 files have been last changed 1-30 days ago (136,057 lines of code)
6% | 16% | 11% | 9% | 56%
Legend:
366+
181-365
91-180
31-90
1-30
File Change History per File Extension
ts, js, txt, json, tsx, jsonc, md, yml, yaml, gitattributes, npmignore, dockerignore, ps1, editorconfig, svg, gitignore, mjs, eslintignore
File Age Distribution per Extension
Days since first update
366+
181-365
91-180
31-90
1-30
ts95% | 3% | <1% | 0% | 0%
js99% | 0% | <1% | 0% | 0%
ps1100% | 0% | 0% | 0% | 0%
mjs0% | 0% | 100% | 0% | 0%
Latest Change Distribution per Extension
Days since last update
366+
181-365
91-180
31-90
1-30
ts6% | 15% | 11% | 9% | 57%
js18% | 23% | 38% | 19% | 0%
ps1100% | 0% | 0% | 0% | 0%
mjs0% | 0% | 100% | 0% | 0%
File Change History per Logical Decomposition
primary
primary (file age distribution)
Days since first update
366+
181-365
91-180
31-90
1-30
src95% | 3% | <1% | 0% | 0%
scripts98% | 0% | 1% | 0% | 0%
ROOT100% | 0% | 0% | 0% | 0%
lib100% | 0% | 0% | 0% | 0%
primary (latest change distribution)
Days since last update
366+
181-365
91-180
31-90
1-30
src5% | 15% | 11% | 9% | 57%
scripts53% | 21% | 9% | 12% | 2%
lib100% | 0% | 0% | 0% | 0%
ROOT0% | 0% | 100% | 0% | 0%
Oldest Files (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes
emitter.ts
in src/compiler
 4796 411 11 2763 1067
checker.ts
in src/compiler
 35866 2160 2 2762 2111
types.ts
in src/compiler
 6196 1 5 2762 1550
parser.ts
in src/compiler
 7108 518 6 2761 1150
commandLineParser.ts
in src/compiler
 3054 133 11 2760 887
binder.ts
in src/compiler
 2802 183 6 2760 989
services.ts
in src/services
 2203 204 6 2760 1126
core.ts
in src/compiler
 1709 185 59 2760 950
sys.ts
in src/compiler
 1614 107 13 2760 603
shims.ts
in src/services
 959 116 27 2760 643
851 60 27 2760 599
sourceMapRecorder.ts
in src/harness
 291 19 426 2760 182
typeWriter.ts
in src/harness
 153 5 168 2760 213
95 7 3 2760 152
runnerbase.ts
in src/harness
 39 5 614 2760 136
formatting.ts
in src/services/formatting
 993 55 63 2754 444
classifier.ts
in src/services
 846 39 54 2754 174
rules.ts
in src/services/formatting
 643 68 151 2754 394
breakpoints.ts
in src/services
 487 30 258 2754 311
284 23 88 2754 240
rulesMap.ts
in src/services/formatting
 105 9 426 2754 130
formattingContext.ts
in src/services/formatting
 83 9 614 2754 118
rule.ts
in src/services/formatting
 30 - 614 2754 55
smartIndenter.ts
in src/services/formatting
 476 31 172 2699 377
signatureHelp.ts
in src/services
 488 38 258 2688 381
utilities.ts
in src/services
 2525 281 4 2686 803
word2md.ts
in scripts
 353 11 614 2685 48
navigationBar.ts
in src/services
 796 63 19 2677 436
formattingScanner.ts
in src/services/formatting
 244 17 63 2662 217
utilities.ts
in src/compiler
 6035 660 4 2608 1252
program.ts
in src/compiler
 3356 188 6 2603 1038
bisect-test.ts
in scripts
 51 1 614 2569 43
editorServices.ts
in src/server
 3091 169 94 2545 838
protocol.ts
in src/server
 1528 - 88 2545 428
VSDevMode.ps1
in scripts
 62 - 2492 2544 18
session.ts
in src/server
 2838 228 25 2541 754
patternMatcher.ts
in src/services
 328 32 426 2537 159
navigateTo.ts
in src/services
 102 9 11 2536 256
errorCheck.ts
in scripts
 72 - 614 2412 31
importDefinitelyTypedTests.ts
in scripts/importDefinitelyTypedTests
 128 5 614 2328 25
link-hooks.js
in scripts
 15 - 1718 2320 13
sourcemap.ts
in src/compiler
 614 46 122 2260 258
transformer.ts
in src/compiler
 439 39 123 2187 225
ts.ts
in src/compiler/transformers
 2067 149 17 2183 467
module.ts
in src/compiler/transformers/module
 1432 62 54 2183 332
system.ts
in src/compiler/transformers/module
 1184 72 196 2183 273
jsx.ts
in src/compiler/transformers
 681 37 13 2183 204
destructuring.ts
in src/compiler/transformers
 398 25 258 2183 227
generators.ts
in src/compiler/transformers
 1982 131 258 2163 248
730 42 220 2071 140
Files Not Recently Changed (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes
VSDevMode.ps1
in scripts
 62 - 2492 2544 18
link-hooks.js
in scripts
 15 - 1718 2320 13
fixUnusedLabel.ts
in src/services/codefixes
 22 2 1285 1354 9
useDefaultImport.ts
in src/services/codefixes
 39 3 1285 1428 34
failed-tests.js
in scripts
 95 4 1124 1330 12
base64.ts
in src/testRunner/unittests
 9 - 1095 1330 18
convertToBase64.ts
in src/testRunner/unittests
 13 1 1095 1330 25
asyncArrow.ts
in src/testRunner/unittests/evaluation
 17 1 1095 1330 19
importHelpers.ts
in src/testRunner/unittests/tsserver
 18 - 1095 1150 13
languageService.ts
in src/testRunner/unittests/tsserver
 19 - 1095 1150 13
initializeTSConfig.ts
in src/testRunner/unittests/config
 23 1 1095 1151 14
formatSettings.ts
in src/testRunner/unittests/tsserver
 26 - 1095 1150 13
asyncGenerator.ts
in src/testRunner/unittests/evaluation
 30 2 1095 1330 19
compilerCore.ts
in src/testRunner/unittests
 33 - 1095 1250 19
symbolWalker.ts
in src/testRunner/unittests/services/extract
 44 2 1095 1151 14
documentRegistry.ts
in src/testRunner/unittests/services
 45 - 1095 1330 19
maxNodeModuleJsDepth.ts
in src/testRunner/unittests/tsserver
 46 - 1095 1150 13
typeAquisition.ts
in src/testRunner/unittests/tsserver
 50 - 1095 1150 13
parsePseudoBigInt.ts
in src/testRunner/unittests
 71 - 1095 1220 20
forAwaitOf.ts
in src/testRunner/unittests/evaluation
 102 12 1095 1330 19
constants.ts
in src/testRunner/unittests/services/extract
 237 18 1095 1151 14
telemetry.ts
in src/testRunner/unittests/tsserver
 246 7 1095 1151 14
patternMatcher.ts
in src/testRunner/unittests/services
 268 8 1095 1330 19
refactors.ts
in src/testRunner/unittests/tsserver
 148 - 1046 1150 16
typescriptServices.ts
in src/typescriptServices
 1 - 614 1074 8
tsserverlibrary.ts
in src/tsserverlibrary
 1 - 614 1074 8
vpathRef.ts
in src/testRunner
 1 - 614 787 4
vfsRef.ts
in src/testRunner
 1 - 614 787 4
utilsRef.ts
in src/testRunner
 1 - 614 787 4
playbackRef.ts
in src/testRunner
 1 - 614 787 4
fourslashRef.ts
in src/testRunner
 1 - 614 787 4
fakesRef.ts
in src/testRunner
 1 - 614 787 4
evaluatorRef.ts
in src/testRunner
 1 - 614 787 4
documentsRef.ts
in src/testRunner
 1 - 614 787 4
compilerRef.ts
in src/testRunner
 1 - 614 787 4
utils.ts
in scripts/eslint/rules
 2 - 614 922 9
exportAsModule.ts
in src/services
 4 - 614 796 4
exitCodeOnBogusFile.ts
in src/testRunner/unittests/tsbuild
 10 - 614 840 6
watchGuard.ts
in src/watchGuard
 11 - 614 1332 15
getApplicableRefactors.ts
in src/testRunner/unittests/tsserver
 12 - 614 1138 20
types.ts
in src/server
 19 - 614 1856 94
listFilesOnly.ts
in src/testRunner/unittests/tsc
 22 - 614 837 6
emptyFiles.ts
in src/testRunner/unittests/tsbuild
 23 - 614 1096 25
awaiter.ts
in src/testRunner/unittests/evaluation
 23 3 614 923 4
25 - 614 913 7
globalThisShim.ts
in src/services
 26 1 614 796 6
objectRest.ts
in src/testRunner/unittests/evaluation
 27 - 614 924 5
no-in-operator.ts
in scripts/eslint/rules
 29 1 614 922 8
sourcemaps.js
in scripts/build
 29 2 614 1301 17
comments.ts
in src/testRunner/unittests
 30 - 614 1176 13
Most Recently Created Files (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes
findUpDir.js
in scripts/build
 16 1 105 105 1
findUpDir.ts
in src/harness
 16 1 101 105 2
convertToEsModule.ts
in src/services/codefixes
 474 33 83 108 2
nodeNextWatch.ts
in src/testRunner/unittests/tscWatch
 57 - 109 109 1
templateLiteral.ts
in src/testRunner/unittests/evaluation
 35 4 110 110 1
node.ts
in src/compiler/transformers/module
 66 7 129 129 1
25 - 160 160 1
loggedIO.ts
in src/loggedIO
 397 16 131 174 2
addOptionalPropertyUndefined.ts
in src/services/codefixes
 85 7 174 174 1
inlayHints.ts
in src/testRunner/unittests/tsserver
 60 2 174 174 1
updateExpressionInModule.ts
in src/testRunner/unittests/evaluation
 123 - 196 196 1
exportInfoMap.ts
in src/services
 393 17 4 209 8
83 10 209 209 1
superInStaticInitializer.ts
in src/testRunner/unittests/evaluation
 191 17 211 211 1
inlayHints.ts
in src/services
 269 22 124 220 11
completionsIncomplete.ts
in src/testRunner/unittests/tsserver
 213 6 209 220 2
arraySpread.ts
in src/testRunner/unittests/evaluation
 39 - 234 234 1
symlinkCache.ts
in src/testRunner/unittests/tsserver
 80 1 20 237 3
publicApi.ts
in src/testRunner/unittests/tsbuildWatch
 113 7 238 238 1
noEmit.ts
in src/testRunner/unittests/tsbuildWatch
 32 - 248 248 1
programUpdates.ts
in src/testRunner/unittests/tsbuildWatch
 737 20 145 250 2
watchEnvironment.ts
in src/testRunner/unittests/tsbuildWatch
 109 5 250 250 1
demo.ts
in src/testRunner/unittests/tsbuildWatch
 84 2 250 250 1
configFileErrors.ts
in src/testRunner/unittests/tsbuildWatch
 60 1 250 250 1
moduleResolution.ts
in src/testRunner/unittests/tsbuildWatch
 56 - 250 250 1
noEmitOnError.ts
in src/testRunner/unittests/tsbuildWatch
 43 1 250 250 1
reexport.ts
in src/testRunner/unittests/tsbuildWatch
 39 1 250 250 1
publicApi.ts
in src/testRunner/unittests/tsbuild
 118 7 24 269 4
clean.ts
in src/testRunner/unittests/tsbuild
 16 - 307 307 1
fixOverrideModifier.ts
in src/services/codefixes
 169 6 65 311 7
moduleSpecifierCache.ts
in src/testRunner/unittests/tsserver
 131 3 20 311 3
exportMapCache.ts
in src/testRunner/unittests/tsserver
 129 2 4 311 4
jsdocTag.ts
in src/testRunner/unittests/tsserver
 687 5 297 321 4
es2021.ts
in src/compiler/transformers
 81 4 258 327 2
externalModules.ts
in src/testRunner/unittests/evaluation
 74 2 223 334 2
projectsWithReferences.ts
in src/testRunner/unittests/tsserver
 479 2 311 342 2
projectsWithReferences.ts
in src/testRunner/unittests/tscWatch
 407 1 311 342 2
jsonParserRecovery.ts
in src/testRunner/unittests
 35 1 342 342 1
projectReferencesSourcemap.ts
in src/testRunner/unittests/tsserver
 3769 121 301 353 3
plugins.ts
in src/testRunner/unittests/tsserver
 95 2 227 356 2
configFileExtends.ts
in src/testRunner/unittests/tsbuild
 52 1 362 362 1
helpers.ts
in src/services/refactors
 12 2 175 404 2
getFileReferences.ts
in src/testRunner/unittests/tsserver
 52 1 416 416 1
nodeServer.ts
in src/tsserver
 710 31 25 418 9
webServer.ts
in src/webServer
 185 20 179 418 5
webServer.ts
in src/testRunner/unittests/tsserver
 148 8 243 418 2
webServer.ts
in src/tsserver
 111 11 131 418 2
outputPaths.ts
in src/testRunner/unittests/tsbuild
 109 1 311 420 3
reloadProjects.ts
in src/testRunner/unittests/tsserver
 115 1 418 453 3
inferFunctionReturnType.ts
in src/services/refactors
 104 6 20 453 6
Most Recently Changed Files (Top 50)
File# lines# unitslast modified
(days ago)		created
(days ago)		# changes
checker.ts
in src/compiler
 35866 2160 2 2762 2111
completions.ts
in src/services
 3183 161 3 1972 558
extractType.ts
in src/services/refactors
 219 15 3 1000 50
95 7 3 2760 152
utilities.ts
in src/compiler
 6035 660 4 2608 1252
utilities.ts
in src/services
 2525 281 4 2686 803
importFixes.ts
in src/services/codefixes
 1085 69 4 1901 370
moduleSpecifiers.ts
in src/compiler
 688 41 4 1336 134
exportInfoMap.ts
in src/services
 393 17 4 209 8
completions.ts
in src/testRunner/unittests/tsserver
 252 - 4 1150 44
exportMapCache.ts
in src/testRunner/unittests/tsserver
 129 2 4 311 4
duplicatePackages.ts
in src/testRunner/unittests/tsserver
 49 - 4 1150 25
types.ts
in src/compiler
 6196 1 5 2762 1550
textChanges.ts
in src/services
 1224 134 5 1795 307
incremental.ts
in src/testRunner/unittests/tsc
 428 8 5 840 24
parser.ts
in src/compiler
 7108 518 6 2761 1150
fourslashImpl.ts
in src/harness
 3844 301 6 787 91
program.ts
in src/compiler
 3356 188 6 2603 1038
binder.ts
in src/compiler
 2802 183 6 2760 989
services.ts
in src/services
 2203 204 6 2760 1126
1545 219 6 787 62
reuseProgramStructure.ts
in src/testRunner/unittests
 1058 28 6 1330 73
types.ts
in src/services
 995 6 6 1977 442
symbolDisplay.ts
in src/services
 628 15 6 1972 259
jsDocParsing.ts
in src/testRunner/unittests
 353 4 10 1330 59
goToDefinition.ts
in src/services
 321 26 10 1972 241
nodeFactory.ts
in src/compiler/factory
 5397 477 11 594 46
emitter.ts
in src/compiler
 4796 411 11 2763 1067
commandLineParser.ts
in src/compiler
 3054 133 11 2760 887
moduleNameResolver.ts
in src/compiler
 1874 132 11 1971 348
findAllReferences.ts
in src/services
 1751 107 11 1972 404
declarations.ts
in src/compiler/transformers
 1526 74 11 1417 192
visitorPublic.ts
in src/compiler
 1011 13 11 796 35
es2017.ts
in src/compiler/transformers
 653 40 11 1937 197
debug.ts
in src/compiler
 610 68 11 985 48
tracing.ts
in src/compiler
 269 18 11 543 20
navigateTo.ts
in src/services
 102 9 11 2536 256
fixUnreachableCode.ts
in src/services/codefixes
 64 3 11 1362 38
fixImplicitThis.ts
in src/services/codefixes
 47 2 11 685 10
programUpdates.ts
in src/testRunner/unittests/tscWatch
 1786 9 12 1138 63
inferFromUsage.ts
in src/services/codefixes
 966 58 12 1572 200
watchPublic.ts
in src/compiler
 792 50 12 796 42
watch.ts
in src/compiler
 640 53 12 1588 251
importTracker.ts
in src/services
 535 36 12 1831 211
project.ts
in src/server
 1907 151 13 2049 529
sys.ts
in src/compiler
 1614 107 13 2760 603
jsx.ts
in src/compiler/transformers
 681 37 13 2183 204
fixStrictClassInitialization.ts
in src/services/codefixes
 140 10 15 1438 57
es2015.ts
in src/compiler/transformers
 2852 155 17 1964 374
ts.ts
in src/compiler/transformers
 2067 149 17 2183 467