chore: exercise level1 complete

solutions/day-01/Level1.js

@@ -0,0 +1,48 @@
+// Declare an empty array;
+const emptyArray = [];
+// Declare an array with more than 5 number of elements
+const numberArray = [1, 2, 3, 4, 5];
+// Find the length of your array
+console.log(numberArray.length);
+// Get the first item, the middle item and the last item of the array
+console.log(numberArray[0], numberArray[2], numberArray[4]);
+// Declare an array called mixedDataTypes, put different data types in the array and find the length of the array. The array size should be greater than 5
+const mixedDataTypes = [1, true, "Diego", 10, false, "black"];
+// Print the number of companies in the array
+console.log(mixedDataTypes.length);
+// Declare an array variable name itCompanies and assign initial values Facebook, Google, Microsoft, Apple, IBM, Oracle and Amazon
+const itCompanies = [
+  "Facebook",
+  "Google",
+  "Microsoft",
+  "Apple",
+  "IBM",
+  "Oracle",
+  "Amazon",
+];
+// Print the array using console.log()
+console.log(itCompanies);
+// Print the number of companies in the array
+console.log(itCompanies.length);
+
+// Change each company name to uppercase one by one and print them out
+for(let i = 0; i < itCompanies.length; i++) {
+    console.log(itCompanies[i].toUpperCase());
+}
+
+// Check if a certain company exists in the itCompanies array. If it exist return the company else return a company is not found
+console.log(itCompanies.includes("Facebook"));
+// Sort the array using sort() method
+console.log(itCompanies.sort());
+// Reverse the array using reverse() method
+console.log(itCompanies.reverse());
+// Slice out the first 3 companies from the array
+console.log(itCompanies.slice(0, 2));
+// Slice out the last 3 companies from the array
+console.log(itCompanies.slice(0, -4));
+// Remove the first IT company from the array
+console.log('teste');
+console.log(itCompanies.shift());
+// Remove the last IT company from the array
+console.log(itCompanies.pop());
+