Merge Two Arrays

Author: nilajcoder

Programs/Array/merge.js

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+
+
+
+/*
+
+let arr1 = [1, 2, 3];
+let arr2 = [4, 5, 6];
+
+arr1.push(...arr2);
+console.log(arr1); // [1, 2, 3, 4, 5, 6]
+
+
+let arr1 = [1, 2, 3];
+let arr2 = [4, 5, 6];
+
+let merged = [...arr1, ...arr2];
+console.log(merged); // [1, 2, 3, 4, 5, 6]
+
+
+let arr1 = [1, 2, 3];
+let arr2 = [4, 5, 6];
+
+let merged = arr1.concat(arr2);
+console.log(merged); // [1, 2, 3, 4, 5, 6]
+
+*/
+
+
+/*
+Merge Two Array
+*/
+
+let arr1 = [1, 2, 3];
+let arr2 = [4, 5, 6];
+
+let merged = [];
+
+// Copy elements from arr1
+for (let i = 0; i < arr1.length; i++) {
+    merged[merged.length] = arr1[i];
+}
+
+// Copy elements from arr2
+for (let i = 0; i < arr2.length; i++) {
+    merged[merged.length] = arr2[i];
+}
+
+console.log(merged); // [1, 2, 3, 4, 5, 6]