diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+.DS_Store
+node_modules
+**/.DS_Store
+todo/**
+_*.js
diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
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+# Exercises
+
+Repository with exercises for [ID499 - Software Prototyping](https://software.prototyping.id).
diff --git a/w2_1_types/README.md b/w2_1_types/README.md
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+# Week 1 - Types
+
+How to open the devtools
+
+
diff --git a/w2_1_types/assets/devtools.png b/w2_1_types/assets/devtools.png
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diff --git a/w2_1_types/index.html b/w2_1_types/index.html
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+
+
+
+
+
+
+
+ Types
+
+
+
+ 
+
+
+
+
\ No newline at end of file
diff --git a/w2_1_types/main.js b/w2_1_types/main.js
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+// Types and conversions
+
+// Ex 1 (implicit convertion)
+// Compute the time in seconds
+function timeInSeconds(hours, mins, secs) {
+ // placeholder
+ // return (hours * 60 + mins) * 60 + secs;
+}
+
+console.log('Ex 1');
+console.log('timeInSeconds(0, 0, 12) is... ', timeInSeconds(0, 0, 12));
+console.log('timeInSeconds(0, 1, 12) is... ', timeInSeconds(0, 1, 12));
+console.log('timeInSeconds(2, 1, "AB") is... ', timeInSeconds(2, 1, 'AB'));
+
+// Ex 2 (string templates)
+// Print a student record
+/*
+{
+ name: 'Andrea',
+ id: 20200212
+}
+*/
+function print(student) {
+ // placeholder
+}
+
+// console.log('Ex 2');
+// print({ name: 'Andrea', id: 20200212 });
+// print({ id: 20200212 });
+// print(undefined);
+
+// Ex 3 (type casting)
+// Given a csv string like "andrea,20200212", create an object like the one in Ex 2
+function csvToObj(csv) {
+ // placeholder
+}
+
+// console.log('Ex 3');
+// print(csvToObj('andrea,20200212'));
+// print(csvToObj('andrea'));
+// print(csvToObj(undefined));