diff --git a/javascript/javascript1/week3/index.html b/javascript/javascript1/week3/index.html
new file mode 100644
index 00000000..c3ab94e4
--- /dev/null
+++ b/javascript/javascript1/week3/index.html
@@ -0,0 +1,15 @@
+
+
+
+
+
+ javasSript1-week3
+
+
+
+
+
+
+
+
+
diff --git a/javascript/javascript1/week3/notes.js b/javascript/javascript1/week3/notes.js
new file mode 100644
index 00000000..511ca72e
--- /dev/null
+++ b/javascript/javascript1/week3/notes.js
@@ -0,0 +1,36 @@
+const notes = [];
+
+function saveNote(content, id) {
+ notes.push({ content, id });
+}
+
+function getNote(id) {
+ if (typeof id !== "number") {
+ console.log("Error: Invalid ID.");
+ return;
+ }
+
+ for (let note of notes) {
+ if (note.id === id) {
+ return note;
+ }
+ }
+
+ console.log("Error: Note not found.");
+ return null;
+}
+
+function logOutNotesFormatted() {
+ for (let note of notes) {
+ console.log(`The note with id: ${note.id}, has the following note text: ${note.content}`);
+ }
+}
+
+
+saveNote("Pick up groceries", 1);
+saveNote("Do laundry", 2);
+
+console.log(getNote(1));
+
+logOutNotesFormatted();
+
diff --git a/javascript/javascript1/week3/seriesDuration.js b/javascript/javascript1/week3/seriesDuration.js
new file mode 100644
index 00000000..5122c02a
--- /dev/null
+++ b/javascript/javascript1/week3/seriesDuration.js
@@ -0,0 +1,46 @@
+const seriesDurations = [
+ {
+ title: "Modern Family",
+ days: 4,
+ hours: 8,
+ minutes: 10,
+ },
+ {
+ title: "Squid Game",
+ days: 0,
+ hours: 20,
+ minutes: 10,
+ },
+ {
+ title: "Attack on Titan",
+ days: 1,
+ hours: 10,
+ minutes: 48,
+ },
+ {
+ title: "Demon Slayer",
+ days: 1,
+ hours: 0,
+ minutes: 9,
+ },
+ ];
+
+ function logSeriesTime(seriesArray) {
+ const lifespanInMinutes = 80 * 365 * 24 * 60; // 80 years in minutes
+ let totalPercentage = 0;
+
+ seriesArray.forEach((series) => {
+ const seriesMinutes =
+ series.days * 24 * 60 + series.hours * 60 + series.minutes;
+ const percentage = (seriesMinutes / lifespanInMinutes) * 100;
+ totalPercentage += percentage;
+
+ console.log(`${series.title} took ${percentage.toFixed(6)}% of your life.`);
+ });
+
+ console.log(
+ `In total, you have spent ${totalPercentage.toFixed(6)}% of your life watching series.`
+ );
+ }
+
+ logSeriesTime(seriesDurations);
\ No newline at end of file
diff --git a/javascript/javascript1/week3/smartPhoneUsage.js b/javascript/javascript1/week3/smartPhoneUsage.js
new file mode 100644
index 00000000..0be02a6a
--- /dev/null
+++ b/javascript/javascript1/week3/smartPhoneUsage.js
@@ -0,0 +1,47 @@
+
+let activities = [];
+
+
+let usageLimit = 100;
+
+
+function addActivity(date, activity, duration) {
+ if (!date || !activity || !duration) {
+ console.log("All parameters are required!");
+ }
+ activities.push({ date, activity, duration });
+}
+
+
+function setUsageLimit(limit) {
+ if (limit < 0) {
+ console.log("Limit cannot be negative!");
+ }
+ usageLimit = limit;
+ console.log(`Usage limit set to ${limit} minutes.`);
+}
+
+
+function showStatus() {
+ if (activities.length == 0) {
+ console.log("Add some activities before calling showStatus");
+ return;
+ }
+
+ let totalDuration = activities.reduce((sum, act) => sum + act.duration, 0);
+
+ console.log(`You have added ${activities.length} activities. They amount to ${totalDuration} min. of usage.`);
+
+ if (totalDuration >= usageLimit) {
+ console.log("You have reached your limit, no more smartphoning for you!");
+}
+
+addActivity("23/7-18", "Youtube", 30);
+addActivity("23/7-18", "Spotify");
+addActivity("23/7-18", "Goodreads", 40);
+addActivity("23/7-18", "Instagram", 40);
+
+showStatus();
+
+
+setUsageLimit();
diff --git a/javascript/javascript1/week3/travelTime.js b/javascript/javascript1/week3/travelTime.js
new file mode 100644
index 00000000..fe722ce1
--- /dev/null
+++ b/javascript/javascript1/week3/travelTime.js
@@ -0,0 +1,16 @@
+const travelInformation = {
+ speed: 50,
+ destinationDistance: 432,
+ };
+
+function calculateTravelTime(travelInfo) {
+ const time = travelInfo.destinationDistance / travelInfo.speed;
+ const hours = Math.floor(time);
+ const minutes = Math.round((time - hours) * 60);
+
+return `${hours} hours and ${minutes} minutes`;
+
+}
+
+ const travelTime = calculateTravelTime(travelInformation);
+ console.log(travelTime); // 8 hours and 38 minutes
\ No newline at end of file
diff --git a/javascript/javascript1/week3/warmUp.js b/javascript/javascript1/week3/warmUp.js
new file mode 100644
index 00000000..be813277
--- /dev/null
+++ b/javascript/javascript1/week3/warmUp.js
@@ -0,0 +1,29 @@
+
+const names = [
+ "Peter",
+ "Ahmad",
+ "Yana",
+ "Rasmus",
+ "Samuel",
+ "Katrine",
+ "Tala",
+];
+
+const nameToRemove ="Ahmad"
+const index = names.indexOf("Ahmad");
+if (name >-1){
+ names.splice(index,1);
+}
+console.log(names);
+console.log(names[names.length]);
+
+
+/* //another way?
+
+const nameToRemove = "Ahmad";
+delete names[1];
+
+console.log(names); */
+
+
+