diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 9cd5b7a31d2..c189475fd4d 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -141,7 +141,7 @@ namespace ts {
             getAugmentedPropertiesOfType,
             getRootSymbols,
             getContextualType: node => {
-                node = getParseTreeNode(node, isExpression)
+                node = getParseTreeNode(node, isExpression);
                 return node ? getContextualType(node) : undefined;
             },
             getFullyQualifiedName,
@@ -20674,7 +20674,7 @@ namespace ts {
                 }
 
                 if (potentialNewTargetCollisions.length) {
-                    forEach(potentialNewTargetCollisions, checkIfNewTargetIsCapturedInEnclosingScope)
+                    forEach(potentialNewTargetCollisions, checkIfNewTargetIsCapturedInEnclosingScope);
                     potentialNewTargetCollisions.length = 0;
                 }
 
diff --git a/src/compiler/core.ts b/src/compiler/core.ts
index 71c0f55c9af..c3c0ba77fe4 100644
--- a/src/compiler/core.ts
+++ b/src/compiler/core.ts
@@ -84,7 +84,7 @@ namespace ts {
                     this.index++;
                     return { value: this.selector(this.data, this.keys[index]), done: false };
                 }
-                return { value: undefined as never, done: true }
+                return { value: undefined as never, done: true };
             }
         }
 
@@ -140,7 +140,7 @@ namespace ts {
                     action(this.data[key], key);
                 }
             }
-        }
+        };
     }
 
     export function createFileMap<T>(keyMapper?: (key: string) => string): FileMap<T> {
diff --git a/src/compiler/declarationEmitter.ts b/src/compiler/declarationEmitter.ts
index 12411cabd56..4a542ab30c7 100644
--- a/src/compiler/declarationEmitter.ts
+++ b/src/compiler/declarationEmitter.ts
@@ -1164,7 +1164,7 @@ namespace ts {
             emitTypeParameters(node.typeParameters);
             const baseTypeNode = getClassExtendsHeritageClauseElement(node);
             if (baseTypeNode) {
-                node.name
+                node.name;
                 emitHeritageClause(node.name, [baseTypeNode], /*isImplementsList*/ false);
             }
             emitHeritageClause(node.name, getClassImplementsHeritageClauseElements(node), /*isImplementsList*/ true);
diff --git a/src/compiler/moduleNameResolver.ts b/src/compiler/moduleNameResolver.ts
index f9fbe5b01c1..1911605a0a6 100644
--- a/src/compiler/moduleNameResolver.ts
+++ b/src/compiler/moduleNameResolver.ts
@@ -675,7 +675,7 @@ namespace ts {
     }
 
     export function nodeModuleNameResolver(moduleName: string, containingFile: string, compilerOptions: CompilerOptions, host: ModuleResolutionHost, cache?: ModuleResolutionCache): ResolvedModuleWithFailedLookupLocations {
-        return nodeModuleNameResolverWorker(moduleName, containingFile, compilerOptions, host, cache, /* jsOnly*/ false);
+        return nodeModuleNameResolverWorker(moduleName, containingFile, compilerOptions, host, cache, /*jsOnly*/ false);
     }
 
     /* @internal */
@@ -962,7 +962,7 @@ namespace ts {
         const result = cache && cache.get(containingDirectory);
         if (result) {
             if (traceEnabled) {
-                trace(host, Diagnostics.Resolution_for_module_0_was_found_in_cache, moduleName)
+                trace(host, Diagnostics.Resolution_for_module_0_was_found_in_cache, moduleName);
             }
             return { value: result.resolvedModule && { path: result.resolvedModule.resolvedFileName, extension: result.resolvedModule.extension } };
         }
diff --git a/src/compiler/transformer.ts b/src/compiler/transformer.ts
index b9a75015f41..d51fdb12ac3 100644
--- a/src/compiler/transformer.ts
+++ b/src/compiler/transformer.ts
@@ -121,13 +121,13 @@ namespace ts {
             enableEmitNotification,
             isSubstitutionEnabled,
             isEmitNotificationEnabled,
-            get onSubstituteNode() { return onSubstituteNode },
+            get onSubstituteNode() { return onSubstituteNode; },
             set onSubstituteNode(value) {
                 Debug.assert(state < TransformationState.Initialized, "Cannot modify transformation hooks after initialization has completed.");
                 Debug.assert(value !== undefined, "Value must not be 'undefined'");
                 onSubstituteNode = value;
             },
-            get onEmitNode() { return onEmitNode },
+            get onEmitNode() { return onEmitNode; },
             set onEmitNode(value) {
                 Debug.assert(state < TransformationState.Initialized, "Cannot modify transformation hooks after initialization has completed.");
                 Debug.assert(value !== undefined, "Value must not be 'undefined'");
diff --git a/src/compiler/transformers/es2015.ts b/src/compiler/transformers/es2015.ts
index 03d4b9ce328..fd2c287d0e0 100644
--- a/src/compiler/transformers/es2015.ts
+++ b/src/compiler/transformers/es2015.ts
@@ -2690,7 +2690,7 @@ namespace ts {
                 if (loopOutParameters.length) {
                     copyOutParameters(loopOutParameters, CopyDirection.ToOutParameter, statements);
                 }
-                addRange(statements, lexicalEnvironment)
+                addRange(statements, lexicalEnvironment);
                 loopBody = createBlock(statements, /*multiline*/ true);
             }
 
diff --git a/src/compiler/transformers/module/module.ts b/src/compiler/transformers/module/module.ts
index 72a3558b1a3..52c6db707c1 100644
--- a/src/compiler/transformers/module/module.ts
+++ b/src/compiler/transformers/module/module.ts
@@ -1152,7 +1152,7 @@ namespace ts {
                         createIdentifier("__esModule"),
                         createLiteral(true)
                     )
-                )
+                );
             }
             else {
                 statement = createStatement(
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
index 4ffd44e6aa1..53d84118609 100644
--- a/src/compiler/types.ts
+++ b/src/compiler/types.ts
@@ -3297,7 +3297,7 @@
     }
 
     export interface PluginImport {
-        name: string
+        name: string;
     }
 
     export type CompilerOptionsValue = string | number | boolean | (string | number)[] | string[] | MapLike<string[]> | PluginImport[];
diff --git a/src/harness/fourslash.ts b/src/harness/fourslash.ts
index 49d1336c874..2532a1875d9 100644
--- a/src/harness/fourslash.ts
+++ b/src/harness/fourslash.ts
@@ -585,7 +585,7 @@ namespace FourSlash {
         }
 
         private getGoToDefinition(): ts.DefinitionInfo[] {
-            return this.languageService.getDefinitionAtPosition(this.activeFile.fileName, this.currentCaretPosition)
+            return this.languageService.getDefinitionAtPosition(this.activeFile.fileName, this.currentCaretPosition);
         }
 
         public verifyGoToType(arg0: any, endMarkerNames?: string | string[]) {
@@ -926,7 +926,7 @@ namespace FourSlash {
             function rangeToReferenceEntry(r: Range) {
                 let { isWriteAccess, isDefinition } = (r.marker && r.marker.data) || { isWriteAccess: false, isDefinition: false };
                 isWriteAccess = !!isWriteAccess; isDefinition = !!isDefinition;
-                return { fileName: r.fileName, textSpan: { start: r.start, length: r.end - r.start }, isWriteAccess, isDefinition }
+                return { fileName: r.fileName, textSpan: { start: r.start, length: r.end - r.start }, isWriteAccess, isDefinition };
             }
         }
 
@@ -2136,7 +2136,7 @@ namespace FourSlash {
 
             const result = includeWhiteSpace
                 ? actualText === expectedText
-                : this.removeWhitespace(actualText) === this.removeWhitespace(expectedText)
+                : this.removeWhitespace(actualText) === this.removeWhitespace(expectedText);
 
             if (!result) {
                 this.raiseError(`Actual text doesn't match expected text. Actual:\n'${actualText}'\nExpected:\n'${expectedText}'`);
@@ -2173,7 +2173,7 @@ namespace FourSlash {
                     start: diagnostic.start,
                     length: diagnostic.length,
                     code: diagnostic.code
-                }
+                };
             });
             const dedupedDiagnositcs = ts.deduplicate(diagnosticsForCodeFix, ts.equalOwnProperties);
 
diff --git a/src/harness/harness.ts b/src/harness/harness.ts
index 8935da642d4..23e8106864a 100644
--- a/src/harness/harness.ts
+++ b/src/harness/harness.ts
@@ -44,7 +44,7 @@ declare namespace NodeJS {
 declare var window: {};
 declare var XMLHttpRequest: {
     new(): XMLHttpRequest;
-}
+};
 interface XMLHttpRequest  {
     readonly readyState: number;
     readonly responseText: string;
@@ -1017,7 +1017,7 @@ namespace Harness {
                     }
                     else {
                         if (!es6TestLibFileNameSourceFileMap.get(libFileName)) {
-                            es6TestLibFileNameSourceFileMap.set(libFileName, createSourceFileAndAssertInvariants(libFileName, IO.readFile(libFileName), scriptTarget))
+                            es6TestLibFileNameSourceFileMap.set(libFileName, createSourceFileAndAssertInvariants(libFileName, IO.readFile(libFileName), scriptTarget));
                         }
                     }
                 }
diff --git a/src/harness/harnessLanguageService.ts b/src/harness/harnessLanguageService.ts
index 202b429fcbc..e7f32748570 100644
--- a/src/harness/harnessLanguageService.ts
+++ b/src/harness/harnessLanguageService.ts
@@ -779,7 +779,7 @@ namespace Harness.LanguageService {
                                         start: 0
                                     });
                                     return prev;
-                                }
+                                };
                                 return proxy;
                             }
                         }),
diff --git a/src/harness/unittests/compileOnSave.ts b/src/harness/unittests/compileOnSave.ts
index 48558b5c1a3..114ee77fef1 100644
--- a/src/harness/unittests/compileOnSave.ts
+++ b/src/harness/unittests/compileOnSave.ts
@@ -496,7 +496,7 @@ namespace ts.projectSystem {
                 const emitOutput = host.readFile(path + ".js");
                 assert.equal(emitOutput, f.content + newLine, "content of emit output should be identical with the input + newline");
             }
-        })
+        });
 
         it("should emit specified file", () => {
             const file1 = {
diff --git a/src/harness/unittests/printer.ts b/src/harness/unittests/printer.ts
index 2496a880bc5..1a5a5a12f9e 100644
--- a/src/harness/unittests/printer.ts
+++ b/src/harness/unittests/printer.ts
@@ -9,7 +9,7 @@ namespace ts {
                     Harness.Baseline.runBaseline(`printerApi/${prefix}.${name}.js`, () =>
                         printCallback(createPrinter({ newLine: NewLineKind.CarriageReturnLineFeed, ...options })));
                 });
-            }
+            };
         }
 
         describe("printFile", () => {
diff --git a/src/harness/unittests/textStorage.ts b/src/harness/unittests/textStorage.ts
index b4287f2610c..545d090df9b 100644
--- a/src/harness/unittests/textStorage.ts
+++ b/src/harness/unittests/textStorage.ts
@@ -65,6 +65,6 @@ namespace ts.textStorage {
 
             ts1.getLineInfo(0);
             assert.isTrue(ts1.hasScriptVersionCache(), "have script version cache - 2");
-        })
+        });
     });
 }
\ No newline at end of file
diff --git a/src/harness/unittests/tsserverProjectSystem.ts b/src/harness/unittests/tsserverProjectSystem.ts
index 7446cc84deb..1531b18bb9d 100644
--- a/src/harness/unittests/tsserverProjectSystem.ts
+++ b/src/harness/unittests/tsserverProjectSystem.ts
@@ -628,7 +628,7 @@ namespace ts.projectSystem {
 
             checkProjectActualFiles(service.configuredProjects[0], []);
             checkProjectActualFiles(service.inferredProjects[0], [f1.path]);
-        })
+        });
 
         it("create configured project without file list", () => {
             const configFile: FileOrFolder = {
@@ -1181,7 +1181,7 @@ namespace ts.projectSystem {
 
             const host = createServerHost([f1, f2, libFile]);
             const service = createProjectService(host);
-            service.openExternalProject({ projectFileName: "/a/b/project", rootFiles: toExternalFiles([f1.path, f2.path]), options: {} })
+            service.openExternalProject({ projectFileName: "/a/b/project", rootFiles: toExternalFiles([f1.path, f2.path]), options: {} });
 
             service.openClientFile(f1.path);
             service.openClientFile(f2.path, "let x: string");
@@ -1213,7 +1213,7 @@ namespace ts.projectSystem {
 
             const host = createServerHost([f1, f2, libFile]);
             const service = createProjectService(host);
-            service.openExternalProject({ projectFileName: "/a/b/project", rootFiles: [{ fileName: f1.path }, { fileName: f2.path, hasMixedContent: true }], options: {} })
+            service.openExternalProject({ projectFileName: "/a/b/project", rootFiles: [{ fileName: f1.path }, { fileName: f2.path, hasMixedContent: true }], options: {} });
 
             service.openClientFile(f1.path);
             service.openClientFile(f2.path, "let somelongname: string");
@@ -2040,7 +2040,7 @@ namespace ts.projectSystem {
 
             for (const f of [f2, f3]) {
                 const scriptInfo = projectService.getScriptInfoForNormalizedPath(server.toNormalizedPath(f.path));
-                assert.equal(scriptInfo.containingProjects.length, 0, `expect 0 containing projects for '${f.path}'`)
+                assert.equal(scriptInfo.containingProjects.length, 0, `expect 0 containing projects for '${f.path}'`);
             }
         });
 
@@ -2156,7 +2156,7 @@ namespace ts.projectSystem {
                 projectFileName,
                 rootFiles: [toExternalFile(f1.path)],
                 options: {}
-            })
+            });
             projectService.openClientFile(f1.path, "let x = 1;\nlet y = 2;");
 
             projectService.checkNumberOfProjects({ externalProjects: 1 });
@@ -3307,12 +3307,12 @@ namespace ts.projectSystem {
                 isCancellationRequested: () => false,
                 setRequest: requestId => {
                     if (expectedRequestId === undefined) {
-                        assert.isTrue(false, "unexpected call")
+                        assert.isTrue(false, "unexpected call");
                     }
                     assert.equal(requestId, expectedRequestId);
                 },
                 resetRequest: noop
-            }
+            };
             const session = createSession(host, /*typingsInstaller*/ undefined, /*projectServiceEventHandler*/ undefined, cancellationToken);
 
             expectedRequestId = session.getNextSeq();
@@ -3359,13 +3359,13 @@ namespace ts.projectSystem {
                         currentId = requestId;
                     },
                     resetRequest(requestId) {
-                        assert.equal(requestId, currentId, "unexpected request id in cancellation")
+                        assert.equal(requestId, currentId, "unexpected request id in cancellation");
                         currentId = undefined;
                     },
                     isCancellationRequested() {
                         return requestToCancel === currentId;
                     }
-                }
+                };
             })();
             const host = createServerHost([f1, config]);
             const session = createSession(host, /*typingsInstaller*/ undefined, () => {}, cancellationToken);
diff --git a/src/harness/unittests/typingsInstaller.ts b/src/harness/unittests/typingsInstaller.ts
index 29076df80f2..2eae01c3520 100644
--- a/src/harness/unittests/typingsInstaller.ts
+++ b/src/harness/unittests/typingsInstaller.ts
@@ -56,7 +56,7 @@ namespace ts.projectSystem {
                 path: "/a/config.js",
                 content: "export let x = 1"
             };
-            const typesCache = "/cache"
+            const typesCache = "/cache";
             const typesConfig = {
                 path: typesCache + "/node_modules/@types/config/index.d.ts",
                 content: "export let y: number;"
@@ -74,7 +74,7 @@ namespace ts.projectSystem {
                     super(host, { typesRegistry: createTypesRegistry("config"), globalTypingsCacheLocation: typesCache });
                 }
                 installWorker(_requestId: number, _args: string[], _cwd: string, _cb: server.typingsInstaller.RequestCompletedAction) {
-                    assert(false, "should not be called")
+                    assert(false, "should not be called");
                 }
             })();
             const service = createProjectService(host, { typingsInstaller: installer });
diff --git a/src/server/editorServices.ts b/src/server/editorServices.ts
index d0535e2f528..cbbe23650fb 100644
--- a/src/server/editorServices.ts
+++ b/src/server/editorServices.ts
@@ -140,7 +140,7 @@ namespace ts.server {
         getScriptKind: _ => undefined,
         hasMixedContent: (fileName, extraFileExtensions) => {
             const mixedContentExtensions = ts.map(ts.filter(extraFileExtensions, item => item.isMixedContent), item => item.extension);
-            return forEach(mixedContentExtensions, extension => fileExtensionIs(fileName, extension))
+            return forEach(mixedContentExtensions, extension => fileExtensionIs(fileName, extension));
         }
     };
 
@@ -1377,7 +1377,7 @@ namespace ts.server {
 
             // close projects that were missing in the input list
             forEachKey(projectsToClose, externalProjectName => {
-                this.closeExternalProject(externalProjectName, /*suppressRefresh*/ true)
+                this.closeExternalProject(externalProjectName, /*suppressRefresh*/ true);
             });
 
             this.refreshInferredProjects();
diff --git a/src/server/project.ts b/src/server/project.ts
index e4669ea191b..339f0288688 100644
--- a/src/server/project.ts
+++ b/src/server/project.ts
@@ -723,7 +723,7 @@ namespace ts.server {
                     const fileName = resolvedTypeReferenceDirective.resolvedFileName;
                     const typeFilePath = toPath(fileName, currentDirectory, getCanonicalFileName);
                     referencedFiles.set(typeFilePath, true);
-                })
+                });
             }
 
             const allFileNames = arrayFrom(referencedFiles.keys()) as Path[];
@@ -745,7 +745,7 @@ namespace ts.server {
                 const id = nextId;
                 nextId++;
                 return makeInferredProjectName(id);
-            }
+            };
         })();
 
         private _isJsInferredProject = false;
diff --git a/src/server/scriptInfo.ts b/src/server/scriptInfo.ts
index be3ef34ce3a..e5df91fd930 100644
--- a/src/server/scriptInfo.ts
+++ b/src/server/scriptInfo.ts
@@ -48,7 +48,7 @@ namespace ts.server {
 
         public reloadFromFile(tempFileName?: string) {
             if (this.svc || (tempFileName !== this.fileName)) {
-                this.reload(this.getFileText(tempFileName))
+                this.reload(this.getFileText(tempFileName));
             }
             else {
                 this.setText(undefined);
diff --git a/src/server/server.ts b/src/server/server.ts
index 2a5990f4252..2c68963ec5c 100644
--- a/src/server/server.ts
+++ b/src/server/server.ts
@@ -47,14 +47,14 @@ namespace ts.server {
         if (process.env.XDG_CACHE_HOME) {
             return process.env.XDG_CACHE_HOME;
         }
-        const usersDir = platformIsDarwin ? "Users" : "home"
+        const usersDir = platformIsDarwin ? "Users" : "home";
         const homePath = (os.homedir && os.homedir()) ||
             process.env.HOME ||
             ((process.env.LOGNAME || process.env.USER) && `/${usersDir}/${process.env.LOGNAME || process.env.USER}`) ||
             os.tmpdir();
         const cacheFolder = platformIsDarwin
             ? "Library/Caches"
-            : ".cache"
+            : ".cache";
         return combinePaths(normalizeSlashes(homePath), cacheFolder);
     }
 
@@ -653,7 +653,7 @@ namespace ts.server {
                 // this drive is unsafe - return no-op watcher
                 return { close() { } };
             }
-        }
+        };
     }
 
     // Override sys.write because fs.writeSync is not reliable on Node 4
diff --git a/src/server/session.ts b/src/server/session.ts
index f1b373c4a90..b5e7e44970d 100644
--- a/src/server/session.ts
+++ b/src/server/session.ts
@@ -226,7 +226,7 @@ namespace ts.server {
 
     /**
      * Represents operation that can schedule its next step to be executed later.
-     * Scheduling is done via instance of NextStep. If on current step subsequent step was not scheduled - operation is assumed to be completed. 
+     * Scheduling is done via instance of NextStep. If on current step subsequent step was not scheduled - operation is assumed to be completed.
      */
     class MultistepOperation {
         private requestId: number;
@@ -239,7 +239,7 @@ namespace ts.server {
             this.next = {
                 immediate: action => this.immediate(action),
                 delay: (ms, action) => this.delay(ms, action)
-            }
+            };
         }
 
         public startNew(action: (next: NextStep) => void) {
@@ -262,7 +262,7 @@ namespace ts.server {
 
         private immediate(action: () => void) {
             const requestId = this.requestId;
-            Debug.assert(requestId === this.operationHost.getCurrentRequestId(), "immediate: incorrect request id")
+            Debug.assert(requestId === this.operationHost.getCurrentRequestId(), "immediate: incorrect request id");
             this.setImmediateId(this.operationHost.getServerHost().setImmediate(() => {
                 this.immediateId = undefined;
                 this.operationHost.executeWithRequestId(requestId, () => this.executeAction(action));
@@ -271,7 +271,7 @@ namespace ts.server {
 
         private delay(ms: number, action: () => void) {
             const requestId = this.requestId;
-            Debug.assert(requestId === this.operationHost.getCurrentRequestId(), "delay: incorrect request id")
+            Debug.assert(requestId === this.operationHost.getCurrentRequestId(), "delay: incorrect request id");
             this.setTimerHandle(this.operationHost.getServerHost().setTimeout(() => {
                 this.timerHandle = undefined;
                 this.operationHost.executeWithRequestId(requestId, () => this.executeAction(action));
@@ -351,7 +351,7 @@ namespace ts.server {
                 logError: (err, cmd) => this.logError(err, cmd),
                 sendRequestCompletedEvent: requestId => this.sendRequestCompletedEvent(requestId),
                 isCancellationRequested: () => cancellationToken.isCancellationRequested()
-            }
+            };
             this.errorCheck = new MultistepOperation(multistepOperationHost);
             this.projectService = new ProjectService(host, logger, cancellationToken, useSingleInferredProject, typingsInstaller, this.eventHander);
             this.gcTimer = new GcTimer(host, /*delay*/ 7000, logger);
diff --git a/src/server/typingsInstaller/nodeTypingsInstaller.ts b/src/server/typingsInstaller/nodeTypingsInstaller.ts
index ff20e89e2d7..447a2c05429 100644
--- a/src/server/typingsInstaller/nodeTypingsInstaller.ts
+++ b/src/server/typingsInstaller/nodeTypingsInstaller.ts
@@ -61,9 +61,7 @@ namespace ts.server.typingsInstaller {
         return combinePaths(normalizeSlashes(globalTypingsCacheLocation), `node_modules/${TypesRegistryPackageName}/index.json`);
     }
 
-    type ExecSync = {
-        (command: string, options: { cwd: string, stdio?: "ignore" }): any
-    }
+    type ExecSync = (command: string, options: { cwd: string, stdio?: "ignore" }) => any;
 
     export class NodeTypingsInstaller extends TypingsInstaller {
         private readonly execSync: ExecSync;
diff --git a/src/server/watchGuard/watchGuard.ts b/src/server/watchGuard/watchGuard.ts
index 7a0307a9120..f57369aecb9 100644
--- a/src/server/watchGuard/watchGuard.ts
+++ b/src/server/watchGuard/watchGuard.ts
@@ -11,7 +11,7 @@ const fs: { watch(directoryName: string, options: any, callback: () => {}): any
 // This means that here we treat any result (success or exception) from fs.watch as success since it does not tear down the process.
 // The only case that should be considered as failure - when watchGuard process crashes.
 try {
-    const watcher = fs.watch(directoryName, { recursive: true }, () => ({}))
+    const watcher = fs.watch(directoryName, { recursive: true }, () => ({}));
     watcher.close();
 }
 catch (_e) {
diff --git a/src/services/codefixes/importFixes.ts b/src/services/codefixes/importFixes.ts
index 1f1b499d03b..1c157257051 100644
--- a/src/services/codefixes/importFixes.ts
+++ b/src/services/codefixes/importFixes.ts
@@ -3,8 +3,8 @@ namespace ts.codefix {
 
     type ImportCodeActionKind = "CodeChange" | "InsertingIntoExistingImport" | "NewImport";
     interface ImportCodeAction extends CodeAction {
-        kind: ImportCodeActionKind,
-        moduleSpecifier?: string
+        kind: ImportCodeActionKind;
+        moduleSpecifier?: string;
     }
 
     enum ModuleSpecifierComparison {
@@ -75,7 +75,7 @@ namespace ts.codefix {
         getAllActions() {
             let result: ImportCodeAction[] = [];
             for (const key in this.symbolIdToActionMap) {
-                result = concatenate(result, this.symbolIdToActionMap[key])
+                result = concatenate(result, this.symbolIdToActionMap[key]);
             }
             return result;
         }
diff --git a/src/services/findAllReferences.ts b/src/services/findAllReferences.ts
index 3dd55eb3590..b6a8f5b5d23 100644
--- a/src/services/findAllReferences.ts
+++ b/src/services/findAllReferences.ts
@@ -422,7 +422,7 @@ namespace ts.FindAllReferences {
             name,
             textSpan: references[0].textSpan,
             displayParts: [{ text: name, kind: ScriptElementKind.keyword }]
-        }
+        };
 
         return [{ definition, references }];
     }
@@ -613,7 +613,7 @@ namespace ts.FindAllReferences {
         const result: Node[] = [];
 
         for (const decl of classSymbol.members.get("__constructor").declarations) {
-            const ctrKeyword = ts.findChildOfKind(decl, ts.SyntaxKind.ConstructorKeyword, sourceFile)!
+            const ctrKeyword = ts.findChildOfKind(decl, ts.SyntaxKind.ConstructorKeyword, sourceFile)!;
             Debug.assert(decl.kind === SyntaxKind.Constructor && !!ctrKeyword);
             result.push(ctrKeyword);
         }
diff --git a/src/services/jsDoc.ts b/src/services/jsDoc.ts
index 59c6ad4b03b..a2a32f95fa4 100644
--- a/src/services/jsDoc.ts
+++ b/src/services/jsDoc.ts
@@ -107,7 +107,7 @@ namespace ts.JsDoc {
                 kind: ScriptElementKind.keyword,
                 kindModifiers: "",
                 sortText: "0"
-            }
+            };
         }));
     }
 
diff --git a/tslint.json b/tslint.json
index 13de7acec63..3952d4fac29 100644
--- a/tslint.json
+++ b/tslint.json
@@ -17,7 +17,7 @@
             "double",
             "avoid-escape"
         ],
-        "semicolon": [true, "ignore-bound-class-methods"],
+        "semicolon": [true, "always", "ignore-bound-class-methods"],
         "whitespace": [true,
             "check-branch",
             "check-decl",