exercise 3

exercise_3.js

@@ -5,4 +5,37 @@ if (String(num).includes('.')) {
 }
 else {
 	console.log(String(num).length);
-}
+}
+
+
+
+let dna = " TCG-TAC-gaC-TAC-CGT-CAG-ACT-TAa-CcA-GTC-cAt-AGA-GCT    ";
+dna = dna.trim().toUpperCase().replace('GCT', 'AGG');
+
+if (dna.indexOf('CAT')) {
+	console.log('CAT FOUND');
+} else {
+	console.log('CAT NOT FOUND');
+}
+
+
+let seq = dna.slice(16, 19);
+
+console.log(dna);
+console.log(`The DNA strand is ${dna.length} characters long.`);
+
+console.log(`${dna.slice(4, 7).toLowerCase()}o ${dna.slice(40, 43).toLowerCase()}`);
+
+
+
+
+
+let lang = 'JavaScript';
+
+console.log(lang.slice(0, 1) + lang.slice(4, 5));
+console.log(lang.replace('ava', '').replace('cript', ''));
+console.log(`The abbreviation for 'JavaScript' is '${lang.slice(0, 1) + lang.slice(4, 5)}'.`);
+
+
+let title = "title case".replace('t', 'T').replace('c', 'C');
+console.log(title);