Create renameDuplicates.js

Author: lgope

js-coding-technique/renameDuplicates.js

@@ -0,0 +1,47 @@
+// 1
+var array = [
+{
+	name: "Steven Smith",
+	Country: "England",
+	Age: 35
+},
+{
+	name: "Hannah Reed",
+	Country: "Scottland",
+	Age: 23
+},
+{
+	name: "Steven Smith",
+	Country: "Spain",
+	Age: 35
+},
+];
+
+	let names = {};
+	arr.forEach(obj => {
+	  if (names[obj.name]) {
+	    obj.name += "_" + ++names[obj.name];
+	  } else {
+	    names[obj.name] = 1;
+	  }
+	});
+
+
+// 2
+	function renameFiles(arr) {
+		let count = {};
+		arr.forEach((x, i) => {
+			if (arr.indexOf(x) !== i) {
+				let c = x in count ? (count[x] = count[x] + 1) : (count[x] = 1);
+				let j = c + 1;
+				let k = `${x }(${ j })`;
+
+				while (arr.indexOf(k) !== -1) k = `${x }(${ ++j })`;
+				arr[i] = k;
+			}
+		});
+		return arr;
+	}
+
+	let res = renameFiles(['a(1)', 'a(6)', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a']);
+	console.log(res);