Function isCompilerOptionEnabled

isCompilerOptionEnabled(
    options: CompilerOptions,
    option:
        | "allowImportingTsExtensions"
        | "allowJs"
        | "allowArbitraryExtensions"
        | "allowSyntheticDefaultImports"
        | "allowUmdGlobalAccess"
        | "allowUnreachableCode"
        | "allowUnusedLabels"
        | "alwaysStrict"
        | "checkJs"
        | "declaration"
        | "declarationMap"
        | "emitDeclarationOnly"
        | "disableSizeLimit"
        | "disableSourceOfProjectReferenceRedirect"
        | "disableSolutionSearching"
        | "disableReferencedProjectLoad"
        | "downlevelIteration"
        | "emitBOM"
        | "emitDecoratorMetadata"
        | "exactOptionalPropertyTypes"
        | "experimentalDecorators"
        | "forceConsistentCasingInFileNames"
        | "importHelpers"
        | "inlineSourceMap"
        | "inlineSources"
        | "isolatedModules"
        | "isolatedDeclarations"
        | "keyofStringsOnly"
        | "libReplacement"
        | "noEmit"
        | "noCheck"
        | "noEmitHelpers"
        | "noEmitOnError"
        | "noErrorTruncation"
        | "noFallthroughCasesInSwitch"
        | "noImplicitAny"
        | "noImplicitReturns"
        | "noImplicitThis"
        | "noStrictGenericChecks"
        | "noUnusedLocals"
        | "noUnusedParameters"
        | "noImplicitUseStrict"
        | "noPropertyAccessFromIndexSignature"
        | "assumeChangesOnlyAffectDirectDependencies"
        | "noLib"
        | "noResolve"
        | "noUncheckedIndexedAccess"
        | "preserveConstEnums"
        | "noImplicitOverride"
        | "preserveSymlinks"
        | "preserveValueImports"
        | "composite"
        | "incremental"
        | "removeComments"
        | "resolvePackageJsonExports"
        | "resolvePackageJsonImports"
        | "rewriteRelativeImportExtensions"
        | "skipLibCheck"
        | "skipDefaultLibCheck"
        | "sourceMap"
        | "strict"
        | "strictFunctionTypes"
        | "strictBindCallApply"
        | "strictNullChecks"
        | "strictPropertyInitialization"
        | "strictBuiltinIteratorReturn"
        | "stripInternal"
        | "suppressExcessPropertyErrors"
        | "suppressImplicitAnyIndexErrors"
        | "traceResolution"
        | "useUnknownInCatchVariables"
        | "noUncheckedSideEffectImports"
        | "resolveJsonModule"
        | "verbatimModuleSyntax"
        | "erasableSyntaxOnly"
        | "esModuleInterop"
        | "useDefineForClassFields",
): boolean
Checks if a given compiler option is enabled. It handles dependencies of options, e.g. declaration is implicitly enabled by composite or strictNullChecks is enabled by strict. However, it does not check dependencies that are already checked and reported as errors, e.g. checkJs without allowJs. This function only handles boolean flags.
Parameters
- options: CompilerOptions
- option:
      | "allowImportingTsExtensions"
      | "allowJs"
      | "allowArbitraryExtensions"
      | "allowSyntheticDefaultImports"
      | "allowUmdGlobalAccess"
      | "allowUnreachableCode"
      | "allowUnusedLabels"
      | "alwaysStrict"
      | "checkJs"
      | "declaration"
      | "declarationMap"
      | "emitDeclarationOnly"
      | "disableSizeLimit"
      | "disableSourceOfProjectReferenceRedirect"
      | "disableSolutionSearching"
      | "disableReferencedProjectLoad"
      | "downlevelIteration"
      | "emitBOM"
      | "emitDecoratorMetadata"
      | "exactOptionalPropertyTypes"
      | "experimentalDecorators"
      | "forceConsistentCasingInFileNames"
      | "importHelpers"
      | "inlineSourceMap"
      | "inlineSources"
      | "isolatedModules"
      | "isolatedDeclarations"
      | "keyofStringsOnly"
      | "libReplacement"
      | "noEmit"
      | "noCheck"
      | "noEmitHelpers"
      | "noEmitOnError"
      | "noErrorTruncation"
      | "noFallthroughCasesInSwitch"
      | "noImplicitAny"
      | "noImplicitReturns"
      | "noImplicitThis"
      | "noStrictGenericChecks"
      | "noUnusedLocals"
      | "noUnusedParameters"
      | "noImplicitUseStrict"
      | "noPropertyAccessFromIndexSignature"
      | "assumeChangesOnlyAffectDirectDependencies"
      | "noLib"
      | "noResolve"
      | "noUncheckedIndexedAccess"
      | "preserveConstEnums"
      | "noImplicitOverride"
      | "preserveSymlinks"
      | "preserveValueImports"
      | "composite"
      | "incremental"
      | "removeComments"
      | "resolvePackageJsonExports"
      | "resolvePackageJsonImports"
      | "rewriteRelativeImportExtensions"
      | "skipLibCheck"
      | "skipDefaultLibCheck"
      | "sourceMap"
      | "strict"
      | "strictFunctionTypes"
      | "strictBindCallApply"
      | "strictNullChecks"
      | "strictPropertyInitialization"
      | "strictBuiltinIteratorReturn"
      | "stripInternal"
      | "suppressExcessPropertyErrors"
      | "suppressImplicitAnyIndexErrors"
      | "traceResolution"
      | "useUnknownInCatchVariables"
      | "noUncheckedSideEffectImports"
      | "resolveJsonModule"
      | "verbatimModuleSyntax"
      | "erasableSyntaxOnly"
      | "esModuleInterop"
      | "useDefineForClassFields"
Returns boolean
Example
```
const options = {
	allowJs: true,
};

isCompilerOptionEnabled(options, "allowJs"); // true
isCompilerOptionEnabled(options, "allowSyntheticDefaultImports"); // false
```
- Defined in compilerOptions.ts:51

Function isCompilerOptionEnabled

Parameters

Returns boolean

Example

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