Completed part 4

Author: SyedAlvi22

arrays/exercises/part-four-arrays.js

@@ -1,10 +1,30 @@
 let holdCabinet1 = ['duct tape', 'gum', 3.14, false, 6.022e23];
 let holdCabinet2 = ['orange drink', 'nerf toys', 'camera', 42, 'parsnip'];
 
-//Explore the methods concat, slice, reverse, and sort to determine which ones alter the original array.
+// 1) Print the result of using concat on the two arrays. Does concat alter the original arrays? Verify this by printing holdCabinet1 after using the method.
+let combinedCabinet = holdCabinet1.concat(holdCabinet2);
+console.log(combinedCabinet); 
+// ['duct tape', 'gum', 3.14, false, 6.022e23, 'orange drink', 'nerf toys', 'camera', 42, 'parsnip']
+console.log(holdCabinet1); 
+// ['duct tape', 'gum', 3.14, false, 6.022e23] - concat does not alter the original array.
 
-//1) Print the result of using concat on the two arrays. Does concat alter the original arrays? Verify this by printing holdCabinet1 after using the method.
+// 2) Print a slice of two elements from each array. Does slice alter the original arrays?
+let sliceCabinet1 = holdCabinet1.slice(1, 3);
+let sliceCabinet2 = holdCabinet2.slice(2, 4);
+console.log(sliceCabinet1); 
+// ['gum', 3.14]
+console.log(sliceCabinet2); 
+// ['camera', 42]
+console.log(holdCabinet1); 
+// ['duct tape', 'gum', 3.14, false, 6.022e23] - slice does not alter the original array.
+console.log(holdCabinet2); 
+// ['orange drink', 'nerf toys', 'camera', 42, 'parsnip'] - slice does not alter the original array.
 
-//2) Print a slice of two elements from each array. Does slice alter the original arrays?
+// 3) Reverse the first array, and sort the second. What is the difference between these two methods? Do the methods alter the original arrays?
+holdCabinet1.reverse();
+console.log(holdCabinet1); 
+// [6.022e23, false, 3.14, 'gum', 'duct tape'] - reverse alters the original array.
 
-//3) reverse the first array, and sort the second. What is the difference between these two methods? Do the methods alter the original arrays?
+holdCabinet2.sort();
+console.log(holdCabinet2); 
+// [42, 'camera', 'nerf toys', 'orange drink', 'parsnip'] - sort alters the original array.