Fix linting errors

src/js/babel.js

@@ -19,7 +19,7 @@ export default class BabelCompiler extends SimpleCompilerBase {
   // installed in it. Instead, we try to load from our entry point's node_modules
   // directory (i.e. Grunt perhaps), and if it doesn't work, just keep going.
   attemptToPreload(names, prefix) {
-    if (!names.length) return null
+    if (!names.length) return null;
 
     const fixupModule = (exp) => {
       // NB: Some plugins like transform-decorators-legacy, use import/export
@@ -34,7 +34,7 @@ export default class BabelCompiler extends SimpleCompilerBase {
       x => fixupModule(require.main.require(x)),
       x => fixupModule(require(path.join(nodeModulesAboveUs, x))),
       x => fixupModule(require(x))
-    ]
+    ];
 
     const possibleNames = (name) => {
       let names = [`babel-${prefix}-${name}`];
@@ -57,20 +57,20 @@ export default class BabelCompiler extends SimpleCompilerBase {
 
         try {
           return strategy(possibleName);
-        } catch(e) {}
+        } catch(e) {} // eslint-disable-line no-empty
 
         return null;
-      }, null)
-    }
+      }, null);
+    };
 
     // Pick a loading strategy that finds the first plugin, the same strategy will be
     // used to preload all plugins
     const selectedStrategy = preloadStrategies.reduce((winner, strategy)=>{
       if (winner !== null) return winner;
       return preloadPossibleNames(names[0], strategy) === null ? null : strategy;
-    }, null)
+    }, null);
 
-    return names.map(name => preloadPossibleNames(name, selectedStrategy)).filter((mod) => mod !== null)
+    return names.map(name => preloadPossibleNames(name, selectedStrategy)).filter((mod) => mod !== null);
   }
 
   compileSync(sourceCode, filePath, compilerContext) { // eslint-disable-line no-unused-vars

src/js/typescript.js

@@ -62,7 +62,7 @@ export default class TypeScriptCompiler extends SimpleCompilerBase {
     };
 
     if (isTsx && options.builtinOpts.hotModuleReload !== false) {
-      sourceCode = this.addHotModuleLoadingRegistration(sourceCode, filePath, this.getExportsForFile(sourceCode, filePath, options.typescriptOpts));
+      sourceCode = this.addHotModuleLoadingRegistration(sourceCode, filePath, this.getExportsForFile(sourceCode, filePath));
     }
 
     let output = ts.transpileModule(sourceCode, transpileOptions);
@@ -142,14 +142,14 @@ if (typeof __REACT_HOT_LOADER__ !== 'undefined') {
     return tmpl;
   }
 
-  getExportsForFile(sourceCode, fileName, tsOptions) {
+  getExportsForFile(sourceCode, fileName) {
     let sourceFile = ts.createSourceFile(fileName, sourceCode, ts.ScriptTarget.ES6);
     let ret = [];
 
     // Walk the tree to search for classes
     let visit = (node) => {
       if (!this.isNodeExported(node)) return;
-      
+
       if (node.kind === ts.SyntaxKind.ClassDeclaration || node.kind === ts.SyntaxKind.FunctionDeclaration) {
         ret.push(node.name.text);
       }