for loop

3_strings.js

@@ -0,0 +1,51 @@
+let num = 1001;
+let dec = 123.45;
+
+console.log(num.toString().length);
+console.log(dec.toString().length);
+
+let numb = 1.2;
+
+if (numb.toString().includes('.')) {
+  console.log('It\'s a decimal.')
+} else {
+  console.log('It\s a number.')
+}
+
+let dna = " TCG-TAC-gaC-TAC-CGT-CAG-ACT-TAa-CcA-GTC-cAt-AGA-GCT    ";
+/*let up = dna.trim();
+console.log(up.toUpperCase());*/
+dna = dna.trim().toUpperCase();
+console.log(dna);
+
+dna = dna.replace('GCT', 'AGG');
+console.log(dna);
+
+if (dna.includes('CAT')) {
+  console.log('CAT found');
+}
+else {
+  console.log('CAT NOT found');
+}
+
+let codon = dna.slice(16, 19);
+
+console.log(codon);
+
+//console.log('The DNA strand is ' + dna.length + ' characters long');
+
+console.log(`The DNA strand is ${dna.length} characters long`);
+
+let name = 'JavaScript';
+
+/*let abbreviation = name.slice(0,1) + name.slice(4,5);
+
+console.log(abbreviation);*/
+
+let abbreviation = name.replace('ava', '').replace('cript', '');
+
+console.log(abbreviation);
+
+
+
+

arrays.js

@@ -0,0 +1,31 @@
+let dingen = ['JavaScript', 10, null, [1, 2], { naam: "Nart" }, true];
+
+console.log(dingen[0]);
+
+let coolName = 'JavaScript';
+
+console.log(coolName[0]);
+
+let practiceFile = [273.15];
+
+practiceFile.push(42);  //push zet achteraan 42 erbij
+practiceFile.push('Hello');
+practiceFile.push(false, -4.6, "87");
+
+console.log(practiceFile);
+
+let cargoHold = ['oxygen tanks', 'space suits', 'parrot', 'instruction manual', 'meal packs', 'slinky', 'security blanket'];
+
+/*cargoHold[5] = 'Space tether';
+
+let element = cargoHold.pop();
+
+cargoHold.unshift(1138);
+
+console.log(cargoHold);
+console.log(element);*/
+
+
+
+
+

booleans-and-conditionals.js

@@ -50,3 +50,4 @@ else {
 }
 
 
+