refactor: some stuff

Author: alexander-akait

lib/getImportPrefix.js

@@ -3,12 +3,18 @@
 	Author Tobias Koppers @sokra
 */
 module.exports = function getImportPrefix(loaderContext, query) {
-	if(query.importLoaders === false)
-		return "";
-	var importLoaders = parseInt(query.importLoaders, 10) || 0;
-	var loadersRequest = loaderContext.loaders.slice(
-		loaderContext.loaderIndex,
-		loaderContext.loaderIndex + 1 + importLoaders
-	).map(function(x) { return x.request; }).join("!");
-	return "-!" + loadersRequest + "!";
+  if (query.importLoaders === false) {
+    return "";
+  }
+
+  const importLoaders = parseInt(query.importLoaders, 10) || 0;
+  const loadersRequest = loaderContext.loaders
+    .slice(
+      loaderContext.loaderIndex,
+      loaderContext.loaderIndex + 1 + importLoaders
+    )
+    .map((x) => x.request)
+    .join("!");
+
+  return "-!" + loadersRequest + "!";
 };