JavaScriptExpert
diff --git a/‎apps/api-extractor/src/cli/RunAction.ts‎
Lines changed: 12 additions & 1 deletion b/‎apps/api-extractor/src/cli/RunAction.ts‎
Lines changed: 12 additions & 1 deletion
diff --git a/‎apps/api-extractor/src/extractor/Extractor.ts‎
Lines changed: 18 additions & 0 deletions b/‎apps/api-extractor/src/extractor/Extractor.ts‎
Lines changed: 18 additions & 0 deletions
diff --git a/‎common/reviews/api/api-extractor.api.ts‎
Lines changed: 2 additions & 0 deletions b/‎common/reviews/api/api-extractor.api.ts‎
Lines changed: 2 additions & 0 deletions
@@ -29,6 +29,7 @@ export class RunAction extends CommandLineAction {
   private _configFileParameter: CommandLineStringParameter;
   private _localParameter: CommandLineFlagParameter;
   private _typescriptCompilerFolder: CommandLineStringParameter;
+  private _skipLibCheck: CommandLineFlagParameter;
 
   constructor(parser: ApiExtractorCommandLine) {
     super({
@@ -63,6 +64,15 @@ export class RunAction extends CommandLineAction {
         + ' This can often cause compiler errors due to incompatibilities between different TS versions.'
         + ' Use "--typescript-compiler-folder" to specify the folder path for your compiler version.'
     });
+
+    this._skipLibCheck = this.defineFlagParameter({
+      parameterLongName: '--skip-lib-check',
+      description: 'This flag causes the typechecker to be invoked with the --skipLibCheck option. This option is not'
+        + ' recommended and may cause api-extractor to produce incomplete or incorrect declarations, but it '
+        + ' may be required when dependencies contain declarations that are incompatible with newer versions'
+        + ' of TypeScript. If this option is used, it is strongly recommended that broken dependencies be'
+        + ' fixed or upgraded.'
+    });
   }
 
   protected onExecute(): Promise<void> { // override
@@ -124,7 +134,8 @@ export class RunAction extends CommandLineAction {
       config,
       {
         localBuild: this._localParameter.value,
-        typescriptCompilerFolder: typescriptCompilerFolder
+        typescriptCompilerFolder: typescriptCompilerFolder,
+        skipLibCheck: this._skipLibCheck.value
       }
     );
 
 
@@ -76,6 +76,20 @@ export interface IExtractorOptions {
    * @beta
    */
   typescriptCompilerFolder?: string;
+
+  /**
+   * This option causes the typechecker to be invoked with the --skipLibCheck option. This option is not
+   * recommended and may cause api-extractor to produce incomplete or incorrect declarations, but it
+   * may be required when dependencies contain declarations that are incompatible with newer versions
+   * of TypeScript. If this option is used, it is strongly recommended that broken dependencies be
+   * fixed or upgraded.
+   *
+   * @remarks
+   * This option only applies when compiler.config.configType is set to "tsconfig"
+   *
+   * @beta
+   */
+  skipLibCheck?: boolean;
 }
 
 /**
@@ -192,6 +206,10 @@ export class Extractor {
           this._absoluteRootFolder
         );
 
+        if (!commandLine.options.skipLibCheck && options.skipLibCheck) {
+          commandLine.options.skipLibCheck = true;
+        }
+
         this._updateCommandLineForTypescriptPackage(commandLine, options);
 
         const normalizedEntryPointFile: string = path.normalize(
 
@@ -215,6 +215,8 @@ interface IExtractorOptions {
   customLogger?: Partial<ILogger>;
   localBuild?: boolean;
   // @beta
+  skipLibCheck?: boolean;
+  // @beta
   typescriptCompilerFolder?: string;
 }
Original file line number	Diff line number	Diff line change
`@@ -215,6 +215,8 @@ interface IExtractorOptions {`
`215`	`215`	`customLogger?: Partial<ILogger>;`
`216`	`216`	`localBuild?: boolean;`
`217`	`217`	`// @beta`
	`218`	`+ skipLibCheck?: boolean;`
	`219`	`+ // @beta`
`218`	`220`	`typescriptCompilerFolder?: string;`
`219`	`221`	`}`
`220`	`222`