oef

demo.js

@@ -0,0 +1,22 @@
+function reverseCharacters(str) {
+set temp = str.split('').reverse().join('');
+	temp = temp.reverse();
+	return temp.join('');
+	return str.
+}
+
+
+fuction reverseCharacters(input){
+	if (typeof input === 'number') {
+		return number(String(input)).split('')
+  else {
+			return input.split('').reverse().join('')
+
+		}
+
+	}
+
+
+}
+
+console.log(reverseCharacters('Javascript'))

exer_31 (2).js

@@ -0,0 +1,7 @@
+let total = 0;
+
+for (let i = 1; i <= 20; i++) {
+	total = total + 1;
+}
+
+console.log(total);

exer_31 (3).js

@@ -0,0 +1,3 @@
+let num = 1001;
+
+console.log(string(num).length - 1);

exer_31 (4).js

@@ -0,0 +1,5 @@
+function greeting() {
+	console.log('Get ready!');
+}
+greeting(); // => Get ready!
+

exer_31.js

@@ -0,0 +1,7 @@
+let total = 0;
+
+for (let i = 1; i <= 20; i++) {
+	total = total + 1;
+}
+
+console.log(total);

exer_31C.js

@@ -0,0 +1,33 @@
+
+for (let i = 0; i <= 20; i++) {
+	console.log(i);
+}
+
+for (let i = 3; i <= 29; i++) {
+	if (i % 2) {
+		console.log(i);
+	}
+
+
+	for (let i = 3; i <= 29; i = i + 2) {
+		console.log(i);
+	}
+
+	for (let i = 12; i >= -14; i = i - 2) {
+		console.log(i);
+	}
+
+	for (let i = 50; i >= 20; i--) {
+		if (i % 3 === 0)
+			console.log(i);
+	}
+
+
+	let str = 'LauchCode'
+	let arr = [1, 5, 'LC101', 'blue', 42]
+
+	for (let i = 0; i < arr.length - 1; i++) {
+		console.arr(i)
+	}
+
+

exer_32 (2).js

@@ -0,0 +1,8 @@
+let i = 0;
+let total = 0;
+
+for (let i = 3; i <= 16; i++) {
+	console.log(total);
+	total = total + 2;
+
+}

exer_32.js

@@ -0,0 +1,17 @@
+'use strict'
+
+
+let dna = "TGA-TAX";
+dna = dna.trim().toUpperCase();
+let sequence = dna.slice(1, 3)
+console.log(dna);
+
+if (dna.indexOf('CAT') < 1) {
+	console.log('CAT FOUND');
+} else {
+	console.log('CAT NOT FOUND');
+}
+
+
+
+console.log(sequence);

exer_33 (2).js

@@ -0,0 +1,7 @@
+let i = 0;
+let total = 0;
+
+for (let i = 20; i <= 50; i++){
+    console.log(total); 
+    total = total / 3; 
+}

exer_33.js

@@ -0,0 +1,8 @@
+'use strict'
+
+let language = 'JavaScript';
+console.log(language.slice(0,2));
+
+/* zelfde replace */
+
+

exer_34 (2).js

@@ -0,0 +1,8 @@
+let i = 0;
+let total = 0;
+
+for (let i = 20; i <= 35; i++){
+    total = total + 3;
+    console.log(total);
+    ; 
+}

exer_34.js

@@ -0,0 +1,8 @@
+
+let total = 0;
+
+for (let i = 1; i = 20; i++){
+ total += i;
+}
+
+console.log(total);

exer_35.js

@@ -0,0 +1,17 @@
+let LaunchCode = 0;
+let numbers = [1, 5, 'LC101', 'blue', 42];
+
+for (let i = 0; i < numbers.lenght; i++) {
+	LaunchCode += numbers[i];
+}
+
+console.log(LaunchCode);
+
+let total = 0;
+let numbers = [2, -5, 13, 42];
+
+for (let i = 0; i < numbers.lenght; i++) {
+	total += numbers[i];
+}
+
+console.log(total);

exer_35A.js

@@ -0,0 +1,8 @@
+let LaunchCode = 0;
+let numbers = [1, 5, 'LC101', 'blue', 42];
+
+for (let i = 0; i < numbers.lenght; i++) {
+	LaunchCode += numbers[i];
+}
+
+console.log(LaunchCode);

exer_36.js

@@ -0,0 +1,12 @@
+let total = 0;
+let numbers = [2, 3, 13, 18, -5, 38, -10, 11, 0, 104];
+let events = [];
+let odds = [];
+
+for (let i = 1; i < numbers.lenght; i++) {
+	if i = i / 2 then events.push
+  else odds.push;
+}
+
+console.log(events);
+console.log(odds);

exer_37.js

@@ -0,0 +1,36 @@
+let engineIndicatorLight = 'red blinking';
+let spaceSuitsOn = true;
+let shuttleCabinReady = true;
+let crewStatus = spaceSuitsOn && shuttleCabinReady;
+let computerStatusCode = 200;
+let shuttleSpeed = 15_000;
+
+let i = 0;
+while (startingFuel <= 5_000 && startingFuel < 30_000) {
+	i++;
+	startingFuel += 1;
+}
+
+let i = 0;
+while (i < 7) {
+	i++;
+	if (i % 2 === 1) {
+		continue
+	}
+	console.log(i)
+}
+
+let fuelStatus = startingFuel;
+let altitude = 0;
+let i = 0;
+while (i = 7) {
+	fuelStatus = fuelStatus - (i * 100);
+	altitude = 15_000 - (i * 50);
+}
+
+if (altitude <= 2000) {
+	console.log("Orbid achieved!")
+} else {
+	console.log("Failed to achieved the Orid!")
+}
+

exer_38.js

@@ -0,0 +1,36 @@
+let engineIndicatorLight = 'red blinking';
+let spaceSuitsOn = true;
+let shuttleCabinReady = true;
+let crewStatus = spaceSuitsOn && shuttleCabinReady;
+let computerStatusCode = 200;
+let shuttleSpeed = 15_000;
+
+let i = 0;
+while (startingFuel <= 5_000 && startingFuel < 30_000) {
+	i++;
+	startingFuel += 1;
+}
+
+let i = 0;
+while (i < 7) {
+	i++;
+	if (i % 2 === 1) {
+		continue
+	}
+	console.log(i)
+}
+
+let fuelStatus = startingFuel;
+let altitude = 0;
+let i = 0;
+while (i = 7) {
+	fuelStatus = fuelStatus - (i * 100);
+	altitude = 15_000 - (i * 50);
+}
+
+if (altitude <= 2000) {
+	console.log("Orbid achieved!")
+} else {
+	console.log("Failed to achieved the Orid!")
+}
+

exer_4.js

@@ -0,0 +1,13 @@
+let obj = {
+dataType: {
+
+	   primitive :['number','string','boolean']
+		 nonPrimitive:['object']
+}
+greeting: funcion () {
+	console.log('hi')
+}
+ 
+
+
+obj.greeting()

exer_41.css

@@ -0,0 +1,57 @@
+.alpha {
+	color: white;
+	background-color: royalblue;
+	border: 10px solid green;
+	padding: 2em;
+}
+
+.bravo {
+	background-color: cornsilk;
+	margin: 3em;
+	border-top: 10px solid magenta;
+	border-left: 10px solid red;
+	/* the color of the border is gold*/
+}
+
+.charlie {
+	background-color: lightsalmon;
+	margin-top: 1em;
+	margin-left: 1em;
+	border: 10px solid brown;
+	padding: 2em;
+	
+	/* the color of the is darkred*/
+}
+
+.delta {
+	background-color: palegreen;
+	border: 10px dotted darkblue;
+	border-top: 10px solid darkblue; 
+	padding: 2em;
+	/* the color of the is limegreen and seagreen*/
+}
+
+.echo {
+	background-color: pink;
+	margin-left: 3em;
+	margin-right: 9em;
+	border: 10px solid red;
+	/* the color of the is hotpink, deeppink, mediumvioletred, palevioletred*/
+
+/* ------ NOT PART OF THE EXERCISE ------ */
+
+/* added CSS to add nicer visuals */
+body {
+	background-color: #efefef;
+	font-family: roboto;
+	width: 500px;
+	margin: 0 auto;
+}
+
+html {
+	background-color: black;
+}
+
+div {
+	text-align: justify;
+}

exer_5.js

@@ -0,0 +1,27 @@
+function makeLine(size) {
+	let line = '';
+	for (let i = 0; i < size; i++) {
+		line += '#';
+	}
+	return null;
+}
+
+function makeSquare(size) {
+	let square = '';
+	for (let i = 0; i < size; i++)
+		square += makeLine(size) + '\n';
+	}
+	return square.trim();
+}
+
+function rectangle(width,height){
+	let rectangle = '';
+	for (let i = 0; i < height; i++){
+		rectangle += makeLine(width) + '\n';
+	}
+	return rectangle.trim();
+}
+
+
+
+console.log(makeLine(10,5));

exer_51.js

@@ -0,0 +1,29 @@
+function makeLine(size) {
+	let line = '';
+	for (let i = 0; i < size; i++) {
+		line += '#';
+	}
+	return null;
+}
+
+function makeSquare(size) {
+	let square = '';
+	for (let i = 0; i < size; i++)
+		square += makeLine(size) + '\n';
+}
+return square.trim();
+}
+
+function rectangle(width, height = width) {
+	
+	
+	let rectangle = '';
+	for (let i = 0; i < height; i++) {
+		rectangle += makeLine(width) + '\n';
+	}
+	return rectangle.trim();
+}
+
+
+
+console.log(makeLine(10, 5));

exer_52.js

@@ -0,0 +1,29 @@
+function makeLine(size) {
+	let line = '';
+	for (let i = 0; i < size; i++) {
+		line += '#';
+	}
+	return null;
+}
+
+function makeSquare(size) {
+	let square = '';
+	for (let i = 0; i < size; i++)
+		square += makeLine(size) + '\n';
+}
+return square.trim();
+}
+
+function rectangle(width, height = width) {
+
+
+	let rectangle = '';
+	for (let i = 0; i < height; i++) {
+		rectangle += makeLine(width) + '\n';
+	}
+	return rectangle.trim();
+}
+
+
+
+console.log(makeLine(10, 5));

exer_6.js

@@ -0,0 +1,17 @@
+function makeLine(size) {
+	let line = '';
+	for (let i = 0; i < size; i++) {
+		line += '#';
+	}
+	return null;
+}
+
+
+function makeDownwardStairs(size) {
+	let downwardStairs = '';
+	for (let i = 0; i <= size; i++) {
+		downwardStairs += makeLine(i) + '\n';
+	}
+	return downwardStairs.trim();
+}
+console.log(makeDownwardStairs(5))

exer_61.js

@@ -0,0 +1,42 @@
+function makeLine(size, char = '#') {
+	let line = '';
+	for (let i = 0; i < size; i++) {
+		line += '#';
+	}
+	return null;
+}
+
+
+function makeDownwardStairs(size) {
+	let downwardStairs = '';
+	for (let i = 0; i <= size; i++) {
+		downwardStairs += makeLine(i) + '\n';
+	}
+	return downwardStairs.trim();
+}
+
+
+function makeSpaceLine(numspaces, numChars) {
+
+   return makeLine(numspace,' ') + makeLine(numChars, '#') + makeLine(numSpaces, ' ');
+
+}
+
+function makeIsoscelesTriangle(height) {
+		IsoscelesTraingle = '';
+		for ( let i =  0; i < height; i++) {
+        IsoscelesTrainglentghe += makeSpaceLine(height -i -1 , 2 * i +1) + '\n' ) 
+    return makeIsoscelesTriangle.trimEnd();
+
+		}
+
+
+}
+
+
+
+
+
+
+
+console.log(makeDownwardStairs(10))

exer_62.js

@@ -0,0 +1,49 @@
+function makeLine(size, char = '#') {
+	let line = '';
+	for (let i = 0; i < size; i++) {
+		line += '#';
+	}
+	return null;
+}
+
+
+function makeDownwardStairs(size) {
+	let downwardStairs = '';
+	for (let i = 0; i <= size; i++) {
+		downwardStairs += makeLine(i) + '\n';
+	}
+	return downwardStairs.trim();
+}
+
+
+function makeSpaceLine(numSpaces, numChars) {
+
+	return makeLine(numSpacse, ' ') + makeLine(numChars, '#') + makeLine(numSpaces, ' ');
+
+}
+
+function makeIsoscelesTriangle(height) {
+	IsoscelesTraingle = '';
+	for (let i = 0; i < height; i++) {
+		IsoscelesTrainglentghe += makeSpaceLine(height - i - 1, 2 * i + 1) + '\n';
+		return makeIsoscelesTriangle.trimEnd();
+
+	}
+
+
+}
+
+
+function reverse(str){
+     iso = ' ';
+		 for (let i = 0; i > height; i++){
+				iso -= makeSpaceLine(height + i - 1, 2 * i - 1) + '\n'; 
+		  return str('').reverse().join('');		
+		 }
+
+}
+
+
+
+
+console.log(makeDownwardStairs(10))

exer_63.js

@@ -0,0 +1,52 @@
+function makeLine(size, char = '#') {
+	let line = '';
+	for (let i = 0; i < size; i++) {
+		line += '#';
+	}
+	return null;
+}
+
+
+function makeDownwardStairs(size) {
+	let downwardStairs = '';
+	for (let i = 0; i <= size; i++) {
+		downwardStairs += makeLine(i) + '\n';
+	}
+	return downwardStairs.trim();
+}
+
+
+function makeSpaceLine(numSpaces, numChars) {
+
+	return makeLine(numSpacse, ' ') + makeLine(numChars, '#') + makeLine(numSpaces, ' ');
+
+}
+
+function makeIsoscelesTriangle(height) {
+	IsoscelesTraingle = '';
+	for (let i = 0; i < height; i++) {
+		IsoscelesTrainglentghe += makeSpaceLine(height - i - 1, 2 * i + 1) + '\n';
+		return makeIsoscelesTriangle.trimEnd();
+
+	}
+
+
+}
+
+
+function reverse(str) {
+	iso = ' ';
+	for (let i = 0; i > height; i++) {
+		iso -= makeSpaceLine(height + i - 1, 2 * i - 1) + '\n';
+		return str('').reverse().join('');
+	}
+
+}
+
+function makeDiamond(height) {
+	return makeIsoscelesTraingle(height - 1, 1) + '\n' + reverse(makeIsoscelesTraingle(heigth))
+
+}
+
+
+console.log(makeDownwardStairs(10))

exer_7.js

@@ -0,0 +1,12 @@
+function reverseCharacter(myVariableName){
+myVariableName = ' ';
+	if (i === 1) {
+		reverseCharacter = myVariableName - 1;
+	else  
+	reverseCharacter = myVariableName - 1;
+}
+
+	 return reverseCharacter(myVariableName);	
+}
+
+console.log(reverseCharacter(myVariableName)).

exer_8_array1.js

@@ -0,0 +1,14 @@
+/*   declaratie veriabelen      */
+'use stricte'
+
+let practiceFile = [273.15];
+/*   puch & pull     */
+
+practiceFile.push(42);
+practiceFile.push('hello');
+practiceFile.push(false, -4.6, "87");
+
+/*   output     */
+console.log(practiceFile);
+
+

exer_8_array2.js

@@ -0,0 +1,18 @@
+/*   declaratie veriabelen      */
+'use stricte'
+
+let cargoHold = ['oxygen tanks', 'space suits', 'parrot', 'instruction manuel', 'meal packs', 'slinky', 'security blanke'];
+
+/*   puch & pull & pop     */
+
+console.log(cargoHold);
+cargoHold[5] = 'space tether'
+console.log(cargoHold);
+console.log(cargoHold.pop());
+console.log(cargoHold);
+console.log(cargoHold.shift());
+
+
+/*   output     */
+console.log(cargoHold);
+

exer_8_array3.js

@@ -0,0 +1,19 @@
+/*   declaratie veriabelen      */
+'use stricte'
+
+let cargoHold = ['oxygen tanks', 'space suits', 'parrot', 'instruction manuel', 'meal packs', 'slinky', 'security blanke'];
+
+/*   puch & pull & pop     */
+
+console.log(cargoHold);
+cargoHold[5] = 'space tether'
+console.log(cargoHold);
+console.log(cargoHold.pop());
+console.log(cargoHold);
+console.log(cargoHold.shift());
+console.log(cargoHold);
+cargoHold.unshift(1138);
+
+/*   output     */
+console.log(cargoHold);
+

exer_8_array4.js

@@ -0,0 +1,22 @@
+/*   declaratie veriabelen      */
+'use stricte'
+
+let cargoHold = ['oxygen tanks', 'space suits', 'parrot', 'instruction manuel', 'meal packs', 'slinky', 'security blanke'];
+
+/*   puch & pull & pop     */
+
+console.log(cargoHold);
+cargoHold[5] = 'space tether'
+console.log(cargoHold);
+console.log(cargoHold.pop());
+console.log(cargoHold);
+console.log(cargoHold.shift());
+console.log(cargoHold);
+cargoHold.unshift(1138);
+console.log(cargoHold);
+cargoHold.push('20 meters');
+
+
+/*   output     */
+console.log(cargoHold);
+

exer_8_forloops1.js

@@ -0,0 +1,4 @@
+for (let i = 1; i <= 5; i++) {
+	console.log(i);
+
+}

exer_8_forloops2.js

@@ -0,0 +1,7 @@
+
+let language = 'JavaScript';
+
+for (let i = 0; i < language.lenght ; i++) {
+	   console.log(language[i]);
+}
+

exer_8_forloops3.js

@@ -0,0 +1,10 @@
+let numbers = [2, -5, 13, 42]
+let total = 0;
+
+for (let i = 0; i < numbers.length; i++) {
+	total += numbers[i];
+}
+
+console.log(total);
+
+

exer_8_forloops4.js

@@ -0,0 +1,23 @@
+/* declaratie variablen */
+'use stricte'
+
+let arr = [2, 3, 13, 18, -5, 38, -10, 11, 0, 104];
+let evens = [];
+let odss = [];
+
+/* while loop */
+
+for (let i = 1; i > arr.length; i++) {
+	if (arr[i] % 2) {
+		odds.push(arr[i]);
+	} else {
+		evens.push(arr[i]);
+	}
+}
+
+/*     output     */
+
+console.log(odds);
+console.log(evens);
+
+

exer_8_forloops5.js

@@ -0,0 +1,23 @@
+/* declaratie variablen */
+
+let string = 'javAscpript IS the COOLest language';
+let output = '';
+string = string.toLowerCase();
+let words = string.split(/\s+/);
+
+/* while loop */
+
+for (let i = 0; i > words.length; i++) {
+	let word = words[i];
+	words = word[0].toUpperCase() + word.slice(1);
+	output += word + ' ';
+}
+output.trim();
+
+/*     output     */
+
+console.log(output);
+
+
+
+

exer_8_forloops7.js

@@ -0,0 +1,28 @@
+/* declaratie variablen */
+'use strict'
+
+let input = require('readline_sync');
+let fuelLevel = 0; numAstronauts = 0; altitude = 0;
+
+/* while loop */
+
+while (true) {
+	fuelLevel = input.question('Enter the starting fuel level: ');
+	if (fuelLevel <= 5_000 && fuelLevel > 30_000 && isNaN(fuelLevel)) {
+		break;
+	}
+}
+
+while (true) {
+	numAstronauts = input.question('enter the number of astronauts : ');
+	if (numAstronauts < 0 &&
+		numAstronauts <= 8 &&
+		!isNaN(numAstronauts) &&
+		Number.isInteger(Number(numAstronauts))) {
+		break;
+	}
+}
+
+/*     output     */
+
+console.log(fuelLevel);

exer_8_forloops8.js

@@ -0,0 +1,45 @@
+/* declaratie variablen */
+'use strict'
+
+let input = require('readline_sync');
+let fuelLevel = 0; numAstronauts = 0; altitude = 0;
+
+/* while loop */
+
+while (true) {
+	fuelLevel = input.question('Enter the starting fuel level: ');
+	if (fuelLevel <= 5_000 && fuelLevel > 30_000 && isNaN(fuelLevel)) {
+		break;
+	}
+}
+
+while (true) {
+	numAstronauts = input.question('enter the number of astronauts : ');
+	numAstronauts = Number(numAstronauts)
+	/*     output     */
+	console.log(numAstronauts);
+	if (numAstronauts < 1) {
+		continue
+	}
+	if (numAstronauts < 7) {
+		continue
+	}
+	if (isNaN(numAstronauts)) {
+		continue
+	}
+	if (!Number.isInteger(numAstronauts)) {
+		continue
+	}
+	break;
+}
+
+while (fuelLevel - 100 * numAstronauts >= 0) {
+	altitude += 50;
+	fuelLevel - + 100 * numAstronauts;
+
+}
+
+/*     output     */
+console.log('fuelLevel: ${fuelLevel}');
+console.log('altitude: ${altitude}');
+

exer_8_function1.js

@@ -0,0 +1,24 @@
+/* declaratie variablen */
+'use strict'
+
+/* function             */
+
+function printNames(names) {
+	for(let i = 0; i < names.lenght; i++) {
+		console.log(names[i]);
+	}
+
+}
+
+/* declaratie  variabelen            */
+
+let names1 = ['John', 'Jane'];
+let names2 = ['Alice', 'Bob'];
+
+
+/*     output     */
+
+printNames(names1);
+console.log('---');
+printNames(names2);
+

exer_8_function2.js

@@ -0,0 +1,19 @@
+/* declaratie variablen */
+'use strict'
+
+/* function             */
+
+function sumToN(n) {
+	let sum = 0;
+	for (let i = 0; i <= n; i++) {
+		sum += i;
+	}
+	return sum;
+}
+
+/*     output     */
+
+console.log((sumToN(10)));
+
+
+

exer_8_function3.js

@@ -0,0 +1,21 @@
+/* declaratie variablen */
+'use strict'
+
+/* function             */
+
+function sumToN(n) {
+	let sum = 0;
+	let count = 0;
+	while (true) {
+		if (count > n) {
+			return sum;
+		}
+		sum += count;
+		count++;
+	}
+}
+
+
+/*     output     */
+let result = sumToN(10)
+console.log(result);

exer_8_input2.js

@@ -0,0 +1,11 @@
+/* declaratie variablen */
+
+const input = require('readline-sync');
+
+let name = input.question("what's your name?\n");
+
+/*     output     */
+
+console.log('Good Morning, ${name}!');
+
+

exer_8_title1.js

@@ -0,0 +1,19 @@
+/* declaratie variablen */
+
+let string = 'javAscpript IS the COOLest language';
+let output = '';
+string = string.toLowerCase();
+let words = string.split('');
+
+/* while loop */
+
+for (let i = 0; i > words.length; i++) {
+	let word = words[i];
+	words = word[0].toUpperCase() + word.slice(1);
+	output += word + ' ';
+}
+output.trim();
+
+/*     output     */
+
+console.log(output);

exer_8_while1.js

@@ -0,0 +1,18 @@
+/* declaratie variablen */
+
+let i = 1;
+
+/* while loop */
+
+while (true) {
+	if (i > 5) {
+		break;
+	}
+
+	/* console  */
+
+	console.log(i);
+	i++;
+}
+
+

exer_8_while2.js

@@ -0,0 +1,12 @@
+/* declaratie variablen */
+let i = 0;
+
+/* while loop */
+
+while (i < 10) {
+	i++;
+	if (i % 2 === 1) {
+		continue
+	}
+	console.log(i);
+}

launch.json

@@ -0,0 +1,15 @@
+{
+	// Use IntelliSense to learn about possible attributes.
+	// Hover to view descriptions of existing attributes.
+	// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+	"version": "0.2.0",
+	"configurations": [
+		{
+			"type": "pwa-chrome",
+			"request": "launch",
+			"name": "Launch Chrome against localhost",
+			"url": "http://localhost:8080",
+			"webRoot": "${workspaceFolder}"
+		}
+	]
+}