Fixes linter issues

Author: alexgorbatchev

webpack/dev-server.ts

@@ -22,7 +22,9 @@ app.use('/fixtures', express.static(`${BUILD_SRC_DIR}/tests/fixtures`));
 app.use(['/static', '/*'], express.static(BUILD_PUBLIC_DIR));
 
 app.listen(3000, 'localhost', function() {
-  process.send && process.send('express ready');
+  if (process.send) {
+    process.send('express ready');
+  }
 
   console.log('http://localhost:3000');
   console.log('http://localhost:3000/webpack-dev-server');

webpack/source-map-fix.ts

@@ -7,7 +7,9 @@ module.exports = function (input, inputMap) {
   const callback = this.async();
   let err = null;
 
-  this.cacheable && this.cacheable();
+  if (this.cacheable) {
+    this.cacheable();
+  }
 
   if (typeof (inputMap) === 'string') {
     inputMap = JSON.parse(inputMap);

webpack/stats.ts

@@ -8,4 +8,4 @@ export default {
   chunkModules: true,
   errorDetails: true,
   reasons: false,
-};
+};