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tsconfig.json | noEmitHelpers | Disable generating custom helper functions like `__extends` in compiled output. | {"type": "boolean", "default": false} |
tsconfig.json | noEmitOnError | Disable emitting files if any type checking errors are reported. | {"type": "boolean", "default": false} |
tsconfig.json | noImplicitAny | Enable error reporting for expressions and declarations with an implied `any` type.. | {"type": "boolean"} |
tsconfig.json | noImplicitThis | Enable error reporting when `this` is given the type `any`. | {"type": "boolean"} |
tsconfig.json | noUnusedLocals | Enable error reporting when a local variables aren't read. | {"type": "boolean", "default": false} |
tsconfig.json | noUnusedParameters | Raise an error when a function parameter isn't read | {"type": "boolean", "default": false} |
tsconfig.json | noLib | Disable including any library files, including the default lib.d.ts. | {"type": "boolean", "default": false} |
tsconfig.json | noResolve | Disallow `import`s, `require`s or `<reference>`s from expanding the number of files TypeScript should add to a project. | {"type": "boolean", "default": false} |
tsconfig.json | noStrictGenericChecks | Disable strict checking of generic signatures in function types. | {"type": "boolean", "default": false} |
tsconfig.json | skipDefaultLibCheck | Skip type checking .d.ts files that are included with TypeScript. | {"type": "boolean", "default": false} |
tsconfig.json | skipLibCheck | Skip type checking all .d.ts files. | {"type": "boolean", "default": false} |
tsconfig.json | outFile | Specify a file that bundles all outputs into one JavaScript file. If `declaration` is true, also designates a file that bundles all .d.ts output. | {"type": "string"} |
tsconfig.json | outDir | Specify an output folder for all emitted files. | {"type": "string"} |
tsconfig.json | preserveConstEnums | Disable erasing `const enum` declarations in generated code. | {"type": "boolean", "default": false} |
tsconfig.json | preserveSymlinks | Disable resolving symlinks to their realpath. This correlates to the same flag in node. | {"type": "boolean", "default": false} |
tsconfig.json | preserveValueImports | Preserve unused imported values in the JavaScript output that would otherwise be removed | {"type": "boolean", "default": false} |
tsconfig.json | preserveWatchOutput | Disable wiping the console in watch mode | {"type": "boolean"} |
tsconfig.json | pretty | Enable color and formatting in output to make compiler errors easier to read | {"type": "boolean", "default": true} |
tsconfig.json | removeComments | Disable emitting comments. | {"type": "boolean", "default": false} |
tsconfig.json | rootDir | Specify the root folder within your source files. | {"type": "string"} |
tsconfig.json | isolatedModules | Ensure that each file can be safely transpiled without relying on other imports. | {"type": "boolean", "default": false} |
tsconfig.json | sourceMap | Create source map files for emitted JavaScript files. | {"type": "boolean", "default": false} |
tsconfig.json | sourceRoot | Specify the root path for debuggers to find the reference source code. | {"type": "string"} |
tsconfig.json | suppressExcessPropertyErrors | Disable reporting of excess property errors during the creation of object literals. | {"type": "boolean", "default": false} |
tsconfig.json | suppressImplicitAnyIndexErrors | Suppress `noImplicitAny` errors when indexing objects that lack index signatures. | {"type": "boolean", "default": false} |
tsconfig.json | stripInternal | Disable emitting declarations that have `@internal` in their JSDoc comments. | {"type": "boolean"} |
tsconfig.json | target | Set the JavaScript language version for emitted JavaScript and include compatible library declarations. | {"type": "string", "default": "ES3", "anyOf": [{"enum": ["ES3", "ES5", "ES6", "ES2015", "ES2016", "ES2017", "ES2018", "ES2019", "ES2020", "ES2021", "ES2022", "ES2023", "ESNext"]}, {"pattern": "^([Ee][Ss]([356]|(20(1[56789]|2[0123]))|[Nn][Ee][Xx][Tt]))$"}]} |
tsconfig.json | useUnknownInCatchVariables | Default catch clause variables as `unknown` instead of `any`. | {"type": "boolean", "default": false} |
tsconfig.json | watch | Watch input files. | {"type": "boolean"} |
tsconfig.json | fallbackPolling | Specify the polling strategy to use when the system runs out of or doesn't support native file watchers. Requires TypeScript version 3.8 or later. | {"enum": ["fixedPollingInterval", "priorityPollingInterval", "dynamicPriorityPolling", "fixedInterval", "priorityInterval", "dynamicPriority", "fixedChunkSize"]} |
tsconfig.json | watchDirectory | Specify the strategy for watching directories under systems that lack recursive file-watching functionality. Requires TypeScript version 3.8 or later. | {"enum": ["useFsEvents", "fixedPollingInterval", "dynamicPriorityPolling", "fixedChunkSizePolling"], "default": "useFsEvents"} |
tsconfig.json | watchFile | Specify the strategy for watching individual files. Requires TypeScript version 3.8 or later. | {"enum": ["fixedPollingInterval", "priorityPollingInterval", "dynamicPriorityPolling", "useFsEvents", "useFsEventsOnParentDirectory", "fixedChunkSizePolling"], "default": "useFsEvents"} |
tsconfig.json | experimentalDecorators | Enable experimental support for TC39 stage 2 draft decorators. | {"type": "boolean"} |
tsconfig.json | emitDecoratorMetadata | Emit design-type metadata for decorated declarations in source files. | {"type": "boolean"} |
tsconfig.json | allowUnusedLabels | Disable error reporting for unused labels. | {"type": "boolean"} |
tsconfig.json | noImplicitReturns | Enable error reporting for codepaths that do not explicitly return in a function. | {"type": "boolean", "default": false} |
tsconfig.json | noUncheckedIndexedAccess | Add `undefined` to a type when accessed using an index. | {"type": "boolean"} |
tsconfig.json | noFallthroughCasesInSwitch | Enable error reporting for fallthrough cases in switch statements. | {"type": "boolean", "default": false} |
tsconfig.json | noImplicitOverride | Ensure overriding members in derived classes are marked with an override modifier. | {"type": "boolean", "default": false} |
tsconfig.json | allowUnreachableCode | Disable error reporting for unreachable code. | {"type": "boolean"} |
tsconfig.json | forceConsistentCasingInFileNames | Ensure that casing is correct in imports. | {"type": "boolean", "default": false} |
tsconfig.json | generateCpuProfile | Emit a v8 CPU profile of the compiler run for debugging. | {"type": "string", "default": "profile.cpuprofile"} |
tsconfig.json | baseUrl | Specify the base directory to resolve non-relative module names. | {"type": "string"} |
tsconfig.json | paths | Specify a set of entries that re-map imports to additional lookup locations. | {"type": "object", "additionalProperties": {"type": "array", "uniqueItems": true, "items": {"type": "string"}}} |
tsconfig.json | items | Path mapping to be computed relative to baseUrl option. | {"type": "string"} |
tsconfig.json | plugins | Specify a list of language service plugins to include. | {"type": "array", "items": {"type": "object", "properties": {"name": {"type": "string"}}}} |
tsconfig.json | name | Plugin name. | {"type": "string"} |
tsconfig.json | rootDirs | Allow multiple folders to be treated as one when resolving modules. | {"type": "array", "uniqueItems": true, "items": {"type": "string"}} |
tsconfig.json | typeRoots | Specify multiple folders that act like `./node_modules/@types`. | {"type": "array", "uniqueItems": true, "items": {"type": "string"}} |
tsconfig.json | types | Specify type package names to be included without being referenced in a source file. | {"type": "array", "uniqueItems": true, "items": {"type": "string"}} |
tsconfig.json | traceResolution | Enable tracing of the name resolution process. Requires TypeScript version 2.0 or later. | {"type": "boolean", "default": false} |
tsconfig.json | allowJs | Allow JavaScript files to be a part of your program. Use the `checkJS` option to get errors from these files. | {"type": "boolean", "default": false} |
tsconfig.json | noErrorTruncation | Disable truncating types in error messages. | {"type": "boolean", "default": false} |
tsconfig.json | allowSyntheticDefaultImports | Allow 'import x from y' when a module doesn't have a default export. | {"type": "boolean"} |
tsconfig.json | noImplicitUseStrict | Disable adding 'use strict' directives in emitted JavaScript files. | {"type": "boolean", "default": false} |
tsconfig.json | listEmittedFiles | Print the names of emitted files after a compilation. | {"type": "boolean", "default": false} |
tsconfig.json | disableSizeLimit | Remove the 20mb cap on total source code size for JavaScript files in the TypeScript language server. | {"type": "boolean", "default": false} |
tsconfig.json | lib | Specify a set of bundled library declaration files that describe the target runtime environment. | {"type": "array", "uniqueItems": true, "items": {"type": "string", "anyOf": [{"enum": ["ES5", "ES6", "ES2015", "ES2015.Collection", "ES2015.Core", "ES2015.Generator", "ES2015.Iterable", "ES2015.Promise", "ES2015.Proxy", "ES2015.Reflect", "ES2015.Symbol.WellKnown", "ES2015.Symbol", "ES2016", "ES2016.Array.Include", "ES2017", "ES2017.Intl", "ES2017.Object", "ES2017.SharedMemory", "ES2017.String", "ES2017.TypedArrays", "ES2018", "ES2018.AsyncGenerator", "ES2018.AsyncIterable", "ES2018.Intl", "ES2018.Promise", "ES2018.Regexp", "ES2019", "ES2019.Array", "ES2019.Intl", "ES2019.Object", "ES2019.String", "ES2019.Symbol", "ES2020", "ES2020.BigInt", "ES2020.Promise", "ES2020.String", "ES2020.Symbol.WellKnown", "ESNext", "ESNext.Array", "ESNext.AsyncIterable", "ESNext.BigInt", "ESNext.Intl", "ESNext.Promise", "ESNext.String", "ESNext.Symbol", "DOM", "DOM.Iterable", "ScriptHost", "WebWorker", "WebWorker.ImportScripts", "Webworker.Iterable", "ES7", "ES2021", "ES2020.SharedMemory", "ES2020.Intl", "ES2020.Date", "ES2020.Number", "ES2021.Promise", "ES2021.String", "ES2021.WeakRef", "ESNext.WeakRef", "ES2021.Intl", "ES2022", "ES2022.Array", "ES2022.Error", "ES2022.Intl", "ES2022.Object", "ES2022.String", "ES2022.SharedMemory", "ES2022.RegExp", "ES2023", "ES2023.Array"]}, {"pattern": "^[Ee][Ss]5|[Ee][Ss]6|[Ee][Ss]7$"}, {"pattern": "^[Ee][Ss]2015(\\.([Cc][Oo][Ll][Ll][Ee][Cc][Tt][Ii][Oo][Nn]|[Cc][Oo][Rr][Ee]|[Gg][Ee][Nn][Ee][Rr][Aa][Tt][Oo][Rr]|[Ii][Tt][Ee][Rr][Aa][Bb][Ll][Ee]|[Pp][Rr][Oo][Mm][Ii][Ss][Ee]|[Pp][Rr][Oo][Xx][Yy]|[Rr][Ee][Ff][Ll][Ee][Cc][Tt]|[Ss][Yy][Mm][Bb][Oo][Ll].[Ww][Ee][Ll][Ll][Kk][Nn][Oo][Ww][Nn]|[Ss][Yy][Mm][Bb][Oo][Ll]))?$"}, {"pattern": "^[Ee][Ss]2016(\\.[Aa][Rr][Rr][Aa][Yy].[Ii][Nn][Cc][Ll][Uu][Dd][Ee])?$"}, {"pattern": "^[Ee][Ss]2017(\\.([Ii][Nn][Tt][Ll]|[Oo][Bb][Jj][Ee][Cc][Tt]|[Ss][Hh][Aa][Rr][Ee][Dd][Mm][Ee][Mm][Oo][Rr][Yy]|[Ss][Tt][Rr][Ii][Nn][Gg]|[Tt][Yy][Pp][Ee][Dd][Aa][Rr][Rr][Aa][Yy][Ss]))?$"}, {"pattern": "^[Ee][Ss]2018(\\.([Aa][Ss][Yy][Nn][Cc][Ii][Tt][Ee][Rr][Aa][Bb][Ll][Ee]|[Ii][Nn][Tt][Ll]|[Pp][Rr][Oo][Mm][Ii][Ss][Ee]|[Rr][Ee][Gg][Ee][Xx][Pp]))?$"}, {"pattern": "^[Ee][Ss]2019(\\.([Aa][Rr][Rr][Aa][Yy]|[Oo][Bb][Jj][Ee][Cc][Tt]|[Ss][Tt][Rr][Ii][Nn][Gg]|[Ss][Yy][Mm][Bb][Oo][Ll]))?$"}, {"pattern": "^[Ee][Ss]2020(\\.([Bb][Ii][Gg][Ii][Nn][Tt]|[Pp][Rr][Oo][Mm][Ii][Ss][Ee]|[Ss][Tt][Rr][Ii][Nn][Gg]|[Ss][Yy][Mm][Bb][Oo][Ll].[Ww][Ee][Ll][Ll][Kk][Nn][Oo][Ww][Nn]|[Dd][Aa][Tt][Ee]|[Nn][Uu][Mm][Bb][Ee][Rr]))?$"}, {"pattern": "^[Ee][Ss]2021(\\.([Ii][Nn][Tt][Ll]|[Pp][Rr][Oo][Mm][Ii][Ss][Ee]|[Ss][Tt][Rr][Ii][Nn][Gg]|[Ww][Ee][Aa][Kk][Rr][Ee][Ff]))?$"}, {"pattern": "^[Ee][Ss]2022(\\.([Aa][Rr][Rr][Aa][Yy]|[Ee][Rr][Rr][Oo][Rr]|[Ii][Nn][Tt][Ll]|[Oo][Bb][Jj][Ee][Cc][Tt]|[Ss][Tt][Rr][Ii][Nn][Gg]|[Ss][Hh][Aa][Rr][Ee][Dd][Mm][Ee][Mm][Oo][Rr][Yy]|[Rr][Ee][Gg][Ee][Xx][Pp]))?$"}, {"pattern": "^[Ee][Ss]2023(\\.([Aa][Rr][Rr][Aa][Yy]))?$"}, {"pattern": "^[Ee][Ss][Nn][Ee][Xx][Tt](\\.([Aa][Rr][Rr][Aa][Yy]|[Aa][Ss][Yy][Nn][Cc][Ii][Tt][Ee][Rr][Aa][Bb][Ll][Ee]|[Bb][Ii][Gg][Ii][Nn][Tt]|[Ii][Nn][Tt][Ll]|[Pp][Rr][Oo][Mm][Ii][Ss][Ee]|[Ss][Tt][Rr][Ii][Nn][Gg]|[Ss][Yy][Mm][Bb][Oo][Ll]|[Ww][Ee][Aa][Kk][Rr][Ee][Ff]))?$"}, {"pattern": "^[Dd][Oo][Mm](\\.[Ii][Tt][Ee][Rr][Aa][Bb][Ll][Ee])?$"}, {"pattern": "^[Ss][Cc][Rr][Ii][Pp][Tt][Hh][Oo][Ss][Tt]$"}, {"pattern": "^[Ww][Ee][Bb][Ww][Oo][Rr][Kk][Ee][Rr](\\.[Ii][Mm][Pp][Oo][Rr][Tt][Ss][Cc][Rr][Ii][Pp][Tt][Ss])?$"}]}} |
tsconfig.json | moduleDetection | Specify how TypeScript determine a file as module. | {"enum": ["auto", "legacy", "force"]} |
tsconfig.json | strictNullChecks | When type checking, take into account `null` and `undefined`. | {"type": "boolean", "default": false} |
tsconfig.json | maxNodeModuleJsDepth | Specify the maximum folder depth used for checking JavaScript files from `node_modules`. Only applicable with `allowJs`. | {"type": "number", "default": 0} |
tsconfig.json | importHelpers | Allow importing helper functions from tslib once per project, instead of including them per-file. | {"type": "boolean", "default": false} |
tsconfig.json | importsNotUsedAsValues | Specify emit/checking behavior for imports that are only used for types. | {"default": "remove", "enum": ["remove", "preserve", "error"]} |
tsconfig.json | alwaysStrict | Ensure 'use strict' is always emitted. | {"type": "boolean"} |
tsconfig.json | strict | Enable all strict type checking options. | {"type": "boolean", "default": false} |
tsconfig.json | strictBindCallApply | Check that the arguments for `bind`, `call`, and `apply` methods match the original function. | {"type": "boolean", "default": false} |
tsconfig.json | downlevelIteration | Emit more compliant, but verbose and less performant JavaScript for iteration. | {"type": "boolean", "default": false} |
tsconfig.json | checkJs | Enable error reporting in type-checked JavaScript files. | {"type": "boolean", "default": false} |
tsconfig.json | strictFunctionTypes | When assigning functions, check to ensure parameters and the return values are subtype-compatible. | {"type": "boolean", "default": false} |
tsconfig.json | strictPropertyInitialization | Check for class properties that are declared but not set in the constructor. | {"type": "boolean", "default": false} |
tsconfig.json | esModuleInterop | Emit additional JavaScript to ease support for importing CommonJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. | {"type": "boolean", "default": false} |
tsconfig.json | allowUmdGlobalAccess | Allow accessing UMD globals from modules. | {"type": "boolean", "default": false} |
tsconfig.json | keyofStringsOnly | Make keyof only return strings instead of string, numbers or symbols. Legacy option. | {"type": "boolean", "default": false} |
tsconfig.json | useDefineForClassFields | Emit ECMAScript-standard-compliant class fields. | {"type": "boolean", "default": false} |
tsconfig.json | declarationMap | Create sourcemaps for d.ts files. | {"type": "boolean", "default": false} |
tsconfig.json | resolveJsonModule | Enable importing .json files | {"type": "boolean", "default": false} |
tsconfig.json | resolvePackageJsonExports | Use the package.json 'exports' field when resolving package imports. | {"type": "boolean", "default": false} |
tsconfig.json | resolvePackageJsonImports | Use the package.json 'imports' field when resolving imports. | {"type": "boolean", "default": false} |
tsconfig.json | assumeChangesOnlyAffectDirectDependencies | Have recompiles in '--incremental' and '--watch' assume that changes within a file will only affect files directly depending on it. Requires TypeScript version 3.8 or later. | {"type": "boolean"} |
tsconfig.json | extendedDiagnostics | Output more detailed compiler performance information after building. | {"type": "boolean", "default": false} |
tsconfig.json | listFilesOnly | Print names of files that are part of the compilation and then stop processing. | {"type": "boolean"} |
tsconfig.json | disableSourceOfProjectReferenceRedirect | Disable preferring source files instead of declaration files when referencing composite projects | {"type": "boolean"} |
tsconfig.json | disableSolutionSearching | Opt a project out of multi-project reference checking when editing. | {"type": "boolean"} |
tsconfig.json | verbatimModuleSyntax | Do not transform or elide any imports or exports not marked as type-only, ensuring they are written in the output file's format based on the 'module' setting. | {"type": "boolean"} |
tsconfig.json | typeAcquisition | Auto type (.d.ts) acquisition options for this project. Requires TypeScript version 2.1 or later. | {"type": "object", "properties": {"enable": {"type": "boolean", "default": false}, "include": {"type": "array", "uniqueItems": true, "items": {"type": "string"}}, "exclude": {"type": "array", "uniqueItems": true, "items": {"type": "string"}}}} |
tsconfig.json | enable | Enable auto type acquisition | {"type": "boolean", "default": false} |
tsconfig.json | include | Specifies a list of type declarations to be included in auto type acquisition. Ex. ["jquery", "lodash"] | {"type": "array", "uniqueItems": true, "items": {"type": "string"}} |
tsconfig.json | exclude | Specifies a list of type declarations to be excluded from auto type acquisition. Ex. ["jquery", "lodash"] | {"type": "array", "uniqueItems": true, "items": {"type": "string"}} |
tsconfig.json | references | Referenced projects. Requires TypeScript version 3.0 or later. | {"type": "array", "uniqueItems": true, "items": {"type": "object", "properties": {"path": {"type": "string"}}}} |
tsconfig.json | items | Project reference. | {"type": "object", "properties": {"path": {"type": "string"}}} |
tsconfig.json | path | Path to referenced tsconfig or to folder containing tsconfig. | {"type": "string"} |
tsconfig.json | ts-node | ts-node options. See also: https://typestrong.org/ts-node/docs/configuration
ts-node offers TypeScript execution and REPL for node.js, with source map support. | {"properties": {"compiler": {"default": "typescript", "type": "string"}, "compilerHost": {"default": false, "type": "boolean"}, "compilerOptions": {"additionalProperties": true, "allOf": [{}], "properties": {}, "type": "object"}, "emit": {"default": false, "type": "boolean"}, "esm": {"type": "boolean"}, "experimentalReplAwait": {"type": "boolean"}, "experimentalResolver": {"type": "boolean"}, "experimentalSpecifierResolution": {"enum": ["explicit", "node"], "type": "string"}, "files": {"default": false, "type": "boolean"}, "ignore": {"default": ["(?:^|/)node_modules/"], "items": {"type": "string"}, "type": "array"}, "ignoreDiagnostics": {"items": {"type": ["string", "number"]}, "type": "array"}, "logError": {"default": false, "type": "boolean"}, "moduleTypes": {}, "preferTsExts": {"default": false, "type": "boolean"}, "pretty": {"default": false, "type": "boolean"}, "require": {"items": {"type": "string"}, "type": "array"}, "scope": {"default": false, "type": "boolean"}, "scopeDir": {"default": "First of: `tsconfig.json` \"rootDir\" if specified, directory containing `tsconfig.json`, or cwd if no `tsconfig.json` is loaded.", "type": "string"}, "skipIgnore": {"default": false, "type": "boolean"}, "swc": {"type": "boolean"}, "transpileOnly": {"default": false, "type": "boolean"}, "transpiler": {"anyOf": [{"items": [{"type": "string"}, {"additionalProperties": true, "properties": {}, "type": "object"}], "maxItems": 2, "minItems": 2, "type": "array"}, {"type": "string"}]}, "typeCheck": {"default": true, "type": "boolean"}}, "type": "object"} |
tsconfig.json | compiler | Specify a custom TypeScript compiler. | {"default": "typescript", "type": "string"} |
tsconfig.json | compilerHost | Use TypeScript's compiler host API instead of the language service API. | {"default": false, "type": "boolean"} |
tsconfig.json | compilerOptions | JSON object to merge with TypeScript `compilerOptions`. | {"additionalProperties": true, "allOf": [{}], "properties": {}, "type": "object"} |
tsconfig.json | emit | Emit output files into `.ts-node` directory. | {"default": false, "type": "boolean"} |
tsconfig.json | esm | Enable native ESM support.
For details, see https://typestrong.org/ts-node/docs/imports#native-ecmascript-modules | {"type": "boolean"} |
tsconfig.json | experimentalReplAwait | Allows the usage of top level await in REPL.
Uses node's implementation which accomplishes this with an AST syntax transformation.
Enabled by default when tsconfig target is es2018 or above. Set to false to disable.
**Note**: setting to `true` when tsconfig target is too low will throw an Error. Leave as `undefined`
to get default, automatic behavior. | {"type": "boolean"} |
tsconfig.json | experimentalResolver | Enable experimental features that re-map imports and require calls to support:
`baseUrl`, `paths`, `rootDirs`, `.js` to `.ts` file extension mappings,
`outDir` to `rootDir` mappings for composite projects and monorepos.
For details, see https://github.com/TypeStrong/ts-node/issues/1514 | {"type": "boolean"} |
tsconfig.json | experimentalSpecifierResolution | Like node's `--experimental-specifier-resolution`, , but can also be set in your `tsconfig.json` for convenience.
For details, see https://nodejs.org/dist/latest-v18.x/docs/api/esm.html#customizing-esm-specifier-resolution-algorithm | {"enum": ["explicit", "node"], "type": "string"} |
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