feat: refactoring project

node_modules/webpack/lib/ModuleGraph.js

@@ -36,7 +36,7 @@ const getConnectionsByOriginModule = set => {
 	/** @type {Module | 0} */
 	let lastModule = 0;
 	/** @type {ModuleGraphConnection[] | undefined} */
-	let lastList = undefined;
+	let lastList;
 	for (const connection of set) {
 		const { originModule } = connection;
 		if (lastModule === originModule) {
@@ -67,7 +67,7 @@ const getConnectionsByModule = set => {
 	/** @type {Module | 0} */
 	let lastModule = 0;
 	/** @type {ModuleGraphConnection[] | undefined} */
-	let lastList = undefined;
+	let lastList;
 	for (const connection of set) {
 		const { module } = connection;
 		if (lastModule === module) {
@@ -445,7 +445,7 @@ class ModuleGraph {
 				}
 			}
 			this._dependencyMap.set(dependency, null);
-			return undefined;
+			return;
 		}
 		return connection === null ? undefined : connection;
 	}
@@ -851,12 +851,13 @@ class ModuleGraph {
 				const moduleGraph = moduleGraphForModuleMap.get(module);
 				if (!moduleGraph)
 					throw new Error(
-						deprecateMessage +
-							"There was no ModuleGraph assigned to the Module for backward-compat (Use the new API)"
+						`${
+							deprecateMessage
+						}There was no ModuleGraph assigned to the Module for backward-compat (Use the new API)`
 					);
 				return moduleGraph;
 			},
-			deprecateMessage + ": Use new ModuleGraph API",
+			`${deprecateMessage}: Use new ModuleGraph API`,
 			deprecationCode
 		);
 		deprecateMap.set(deprecateMessage, newFn);