Update remove-duplicates.js

scripts/remove-duplicates.js

@@ -1,36 +1,35 @@
-const fs = require("fs").promises;
-const path = require("path");
+const fs = require("node:fs").promises;
+const path = require("node:path");
 
 (async () => {
 	try {
 		const directoryPath = path.join(__dirname, "..");
-		const files = (await fs.readdir(directoryPath)).filter(file => file.endsWith(".txt"));
+		const files = (await fs.readdir(directoryPath)).filter((file) =>
+			file.endsWith(".txt"),
+		);
 
-		await Promise.all(files.map(async file => {
-			const filePath = path.join(directoryPath, file);
-			let fileContents = await fs.readFile(filePath, "utf8");
+		await Promise.all(
+			files.map(async (file) => {
+				const filePath = path.join(directoryPath, file);
+				const fileContents = await fs.readFile(filePath, "utf8");
 
-			const lines = fileContents.split("\n");
-			const existingDomains = new Set();
-			const filteredLines = [];
-
-			lines.forEach(line => {
-				if (line.startsWith("0.0.0.0 ")) {
-					const domain = line.replace("0.0.0.0 ", "");
-					if (!existingDomains.has(domain)) {
-						existingDomains.add(domain);
-						filteredLines.push(line);
+				const lines = fileContents.split("\n");
+				const existingDomains = new Set();
+				const filteredLines = lines.filter((line) => {
+					if (line.startsWith("0.0.0.0 ")) {
+						const domain = line.replace("0.0.0.0 ", "");
+						if (!existingDomains.has(domain)) {
+							existingDomains.add(domain);
+							return true;
+						}
+						return false;
 					}
-				} else {
-					filteredLines.push(line);
-				}
-			});
-
-			// Combine the filtered lines back into a single string
-			const updatedContents = filteredLines.join("\n");
+					return true;
+				});
 
-			await fs.writeFile(filePath, updatedContents, "utf8");
-		}));
+				await fs.writeFile(filePath, filteredLines.join("\n"), "utf8");
+			}),
+		);
 	} catch (error) {
 		console.error("Error processing files:", error);
 	}