diff --git a/Day-1/datatypes.js b/Day-1/datatypes.js
new file mode 100644
index 0000000..c53f205
--- /dev/null
+++ b/Day-1/datatypes.js
@@ -0,0 +1,42 @@
+let favoriteColor = "Blue";
+let isBoolean = false;
+let electionDetails;
+let emptyValue = null;
+let firstNumber = 0;
+
+// These are type of each variables
+console.log(typeof(favoriteColor));
+console.log(typeof(isBoolean));
+console.log(typeof(electionDetails));
+console.log(typeof(emptyValue));
+console.log(typeof(firstNumber));
+
+// These are unassigned variables
+let nameOfMom;
+let nameOfDad;
+let nameOfSister;
+let nameOfBrother;
+
+// These are assigned variables
+let currentYear = 2020;
+let currentMonth = "November";
+let currentDay = "Tuesday";
+let isEmployed = false;
+
+// This is my details in multiple lines
+let firstName = "Kelechi";
+let lastName = "Egekenze";
+let isMarried = false;
+let country = "Nigeria";
+let age = 27;
+
+// This is my details in single line
+//let firstName = "Kelechi"; let lastName = "Egekenze"; let isMarried = false; let country = "Nigeria"; let age = 27;
+
+// Console to the browser
+let myAge = 27;
+let yourAge = 30;
+console.log("I am 27 years old");
+console.log("I am 30 years old");
+console.log(myAge);
+console.log(yourAge);
diff --git a/Day-1/index.html b/Day-1/index.html
new file mode 100644
index 0000000..ad7b2da
--- /dev/null
+++ b/Day-1/index.html
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+
+
+
+
+
+ Document
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/Day-1/script.js b/Day-1/script.js
new file mode 100644
index 0000000..4893888
--- /dev/null
+++ b/Day-1/script.js
@@ -0,0 +1,7 @@
+// Comments can make code readable
+
+// Welcome to 30DaysOfJavaScript
+
+/* comments can make code readable,
+easy to reuse and informative */
+
diff --git a/Day-1/variable.js b/Day-1/variable.js
new file mode 100644
index 0000000..e06ba19
--- /dev/null
+++ b/Day-1/variable.js
@@ -0,0 +1,4 @@
+let favoriteColor = "Blue";
+let isBoolean = false;
+let electionDetails;
+let emptyValue = null;
\ No newline at end of file