ptorrel/JS
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat: added 03_dom

Browse Source
This commit is contained in:
Philippe Torrel
2026-07-13 10:38:22 +02:00
parent 6292cabfee
commit e0bd3930d9
134 changed files with 21947 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
02_advanced/uebungen/u05_sum-rekursiv/index.html
View File

@@ -1,10 +1,11 @@
<!DOCTYPE html>
<!doctype html>
<html lang="de">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Übung 5: Summe einer Zahlenreihe rekursiv berechnen</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js"></script>
</head>
<body>
<main>
@@ -28,10 +29,29 @@
<script>
'use strict';
const sumRecursive = (n) => {};
const sumRecursive = (n) => {
if (n === 0) {
return 0;
}
return n + sumRecursive(n - 1); // 5 + 4 + 3 + 2 + 1 + 0
};
const sumReduce = (n) => {
return _.range(0, n + 1).reduce((a, b) => a + b, 0);
};
// Test Cases
console.log(_.range(5)); // => [0,1,2,3,4]
console.log(_.range(2, 5)); // => [2,3,4]
console.log(_.range(2, 10, 2)); // => [2,4,6,8]
console.time('recursive');
console.log(sumRecursive(5)); // => 15 (5 + 4 + 3 + 2 + 1)
console.timeEnd('recursive');
console.time('reduce');
console.log(sumReduce(5)); // => 15 (5 + 4 + 3 + 2 + 1)
console.timeEnd('reduce');
console.log(sumRecursive(10)); // => 55 (10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1)
console.log(sumRecursive(0)); // => 0
</script>

14
02_advanced/uebungen/u06_binomialkoeffizienten/index.html
View File

@@ -1,4 +1,4 @@
<!DOCTYPE html>
<!doctype html>
<html lang="de">
<head>
<meta charset="UTF-8" />
@@ -36,7 +36,17 @@
<script>
'use strict';
const combinations = (n, k) => {};
const combinations = (n, k) => {
if (k === 0 || k === n) {
return 1;
}
if (k > n) {
return 0;
}
return combinations(n - 1, k - 1) + combinations(n - 1, k);
};
// Test Cases
console.log(combinations(5, 2)); // => 10

23
02_advanced/uebungen/#u10_sum-array-rekursiv/index.html → 02_advanced/uebungen/u10_sum-array-rekursiv/index.html
View File

@@ -1,4 +1,4 @@
<!DOCTYPE html>
<!doctype html>
<html lang="de">
<head>
<meta charset="UTF-8" />
@@ -21,7 +21,26 @@
<script>
'use strict';
const sumNestedArray = (arr) => {};
const sumNestedArray = (arr) => {
// Basisfall: Wenn das Array leer ist, ist die Summe 0
if (arr.length === 0) {
return 0;
}
// Nimm das erste Element des Arrays
const first = arr[0];
const rest = arr.slice(1);
let sumFirst = 0;
// Wenn das erste Element ein Array ist, rufe die Funktion rekursiv auf
if (Array.isArray(first)) {
sumFirst = sumNestedArray(first);
} else if (!isNaN(first)) {
// Wenn es eine Zahl ist, füge sie zur Summe hinzu
sumFirst = Number(first);
}
// Rekursiver Fall: Summe des ersten Elements + Summe des restlichen Arrays
return sumFirst + sumNestedArray(rest);
};
// Test cases
console.log(sumNestedArray([1, [2, [3, 4], 5], 6])); // => 21

1
02_advanced/uebungen/u26_csv-quotes2/data/csvDatei.csv Normal file
View File

@@ -0,0 +1 @@
"very big, soft computer mouse","the cutest peripheral ever",10,39.90
1 very big, soft computer mouse the cutest peripheral ever 10 39.90

11
02_advanced/uebungen/u26_csv-quotes2/data/products.csv Normal file
View File

@@ -0,0 +1,11 @@
Code,Short Description,Tagline,Quantity,Price
MUG0007,coffee mug with LCD level indicator,never again reach for the empty mug,20,49.90
MUG0013,coffee mug with bluetooth-connected coffee grounds scanner for automatized fortune telling,put the smart into coffee reading,20,99.90
OFF3145,pen with pre-warmed ink (tested on the South Pole),the pen is mightier than the cold,50,29.90
COM1001,ambidextrous computer mouse,end the dictate of left and right,10,19.90
COM0404,Easter egg themed webcam for your monitor,put an Easter egg on hardware too,20,149.90
COM0001,Vulcan language vi cheatsheet,learn vi and Vulcan at the same time,3,9.90
COM1536,Klingon language emacs cheatsheet,learn emacs and Klingon at the same time,50,9.90
MOB0555,smartphone case with built-in screen,never miss a message,20,39.90
1 Code Short Description Tagline Quantity Price
2 MUG0007 coffee mug with LCD level indicator never again reach for the empty mug 20 49.90
3 MUG0013 coffee mug with bluetooth-connected coffee grounds scanner for automatized fortune telling put the smart into coffee reading 20 99.90
4 OFF3145 pen with pre-warmed ink (tested on the South Pole) the pen is mightier than the cold 50 29.90
5 COM1001 ambidextrous computer mouse end the dictate of left and right 10 19.90
6 COM0404 Easter egg themed webcam for your monitor put an Easter egg on hardware too 20 149.90
7 COM0001 Vulcan language vi cheatsheet learn vi and Vulcan at the same time 3 9.90
8 COM1536 Klingon language emacs cheatsheet learn emacs and Klingon at the same time 50 9.90
9 MOB0555 smartphone case with built-in screen never miss a message 20 39.90

58
02_advanced/uebungen/u26_csv-quotes2/index-andreas.js Normal file
View File

@@ -0,0 +1,58 @@
import fs from 'node:fs';
import color from 'chalk';
const data = fs.readFileSync('data/products.csv', 'utf-8');
const productAr = data.split('\n').map((row) => row.replace('\n', ''));
const headerAr = productAr.shift().split(/\s*,\s*/);
console.log(productAr);
// console.log(headerAr);
// console.log('=======');
// console.log(productAr);
const convertCsvToJson = (products, headerAr) => {
let jsonStr = '[\n';
products.forEach((row, idxRow) => {
jsonStr += ' {\n';
row
.trim()
.split(',')
.forEach((elem, idxElem, ar) => {
if (ar.length === idxElem + 1) {
if (isNaN(elem)) {
jsonStr += ` "${headerAr[idxElem]}": "${elem}"\n`;
} else {
jsonStr += ` "${headerAr[idxElem]}": ${Number(elem)}\n`;
}
} else {
if (isNaN(elem)) {
jsonStr += ` "${headerAr[idxElem]}": "${elem}",\n`;
} else {
jsonStr += ` "${headerAr[idxElem]}": ${Number(elem)},\n`;
}
}
});
if (products.length === idxRow + 1) {
jsonStr += ` }\n`;
} else {
jsonStr += ` },\n`;
}
});
jsonStr += ']';
console.log(color.yellow(`${jsonStr}`));
fs.writeFile('products.json', jsonStr, 'utf-8', (err) => {
if (err) {
console.log(err);
} else {
console.log(color.green('file created!'));
}
});
};
convertCsvToJson(productAr, headerAr);

21
02_advanced/uebungen/u26_csv-quotes2/index-ersin.js Normal file
View File

@@ -0,0 +1,21 @@
import fs from 'node:fs';
import papa from 'papaparse';
//https://www.npmjs.com/package/papaparse
const data = fs.readFileSync('data/csvDatei.csv', 'utf-8').trim();
const parsed = papa.parse(data, {
dynamicTyping: true,
});
const dataRow = parsed.data[0];
const result = {
name: dataRow[0],
description: dataRow[1],
quantity: dataRow[2],
price: dataRow[3],
};
console.log(JSON.stringify(result, null, 2));

62
02_advanced/uebungen/u26_csv-quotes2/index-phil.js Normal file
View File

@@ -0,0 +1,62 @@
import fs from 'node:fs';
import color from 'chalk';
const data = fs.readFileSync('data/products.csv', 'utf-8');
const toCamelCase = (str) => {
return str
.trim()
.toLowerCase()
.replace(/[^a-zA-Z0-9]+(.)/g, (match, chr) => chr.toUpperCase());
};
const convertCsvToJson = (products, ar) => {
const resultAr = products.map((str) => {
const fields = str.split(/\s*,\s*/);
const labels = ar.map((label, idx) => {
return [label, isNaN(fields[idx]) ? fields[idx] : Number(fields[idx])];
});
const obj = Object.fromEntries(labels);
// console.log(labels); // Entries Array
//console.log(obj);
return obj;
// return {
// [ar[0]]: fields[0],
// [ar[1]]: fields[1],
// [ar[2]]: fields[2],
// [ar[3]]: Number(fields[3]),
// [ar[4]]: Number(fields[4]),
// };
});
// console.log(resultAr);
const jsonStr = JSON.stringify(resultAr, '', 2);
fs.writeFile('products.json', jsonStr, 'utf-8', (err) => {
if (err) {
console.log(err);
} else {
console.log(color.green('file created!'));
}
});
};
const productAr = data
.split('\n')
.map((row) => row.replace('\n', ''))
.filter((row) => row !== '');
const headerAr = productAr
.shift()
.split(/\s*,\s*/)
.map(toCamelCase);
// console.log('=======');
// console.log(productAr);
convertCsvToJson(productAr, headerAr);

35
02_advanced/uebungen/u26_csv-quotes2/package-lock.json generated Normal file
View File

@@ -0,0 +1,35 @@
{
"name": "u26_csv-quotes2",
"version": "1.0.0",
"lockfileVersion": 3,
"requires": true,
"packages": {
"": {
"name": "u26_csv-quotes2",
"version": "1.0.0",
"license": "ISC",
"dependencies": {
"chalk": "^5.6.2",
"papaparse": "^5.5.4"
}
},
"node_modules/chalk": {
"version": "5.6.2",
"resolved": "https://registry.npmjs.org/chalk/-/chalk-5.6.2.tgz",
"integrity": "sha512-7NzBL0rN6fMUW+f7A6Io4h40qQlG+xGmtMxfbnH/K7TAtt8JQWVQK+6g0UXKMeVJoyV5EkkNsErQ8pVD3bLHbA==",
"license": "MIT",
"engines": {
"node": "^12.17.0 || ^14.13 || >=16.0.0"
},
"funding": {
"url": "https://github.com/chalk/chalk?sponsor=1"
}
},
"node_modules/papaparse": {
"version": "5.5.4",
"resolved": "https://registry.npmjs.org/papaparse/-/papaparse-5.5.4.tgz",
"integrity": "sha512-SwzWD9gl/ElwYLCI0nUja1mFJzjq2D8ziShfNBa7zCHzkOozeOGDwHWQ+tvCzEZcewecWZ5U7kUopDnG+DFYEQ==",
"license": "MIT"
}
}
}

17
02_advanced/uebungen/u26_csv-quotes2/package.json Normal file
View File

@@ -0,0 +1,17 @@
{
"name": "u26_csv-quotes2",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"type": "module",
"dependencies": {
"chalk": "^5.6.2",
"papaparse": "^5.5.4"
}
}

58
02_advanced/uebungen/u26_csv-quotes2/products.json Normal file
View File

@@ -0,0 +1,58 @@
[
{
"code": "MUG0007",
"shortDescription": "coffee mug with LCD level indicator",
"tagline": "never again reach for the empty mug",
"quantity": 20,
"price": 49.9
},
{
"code": "MUG0013",
"shortDescription": "coffee mug with bluetooth-connected coffee grounds scanner for automatized fortune telling",
"tagline": "put the smart into coffee reading",
"quantity": 20,
"price": 99.9
},
{
"code": "OFF3145",
"shortDescription": "pen with pre-warmed ink (tested on the South Pole)",
"tagline": "the pen is mightier than the cold",
"quantity": 50,
"price": 29.9
},
{
"code": "COM1001",
"shortDescription": "ambidextrous computer mouse",
"tagline": "end the dictate of left and right",
"quantity": 10,
"price": 19.9
},
{
"code": "COM0404",
"shortDescription": "Easter egg themed webcam for your monitor",
"tagline": "put an Easter egg on hardware too",
"quantity": 20,
"price": 149.9
},
{
"code": "COM0001",
"shortDescription": "Vulcan language vi cheatsheet",
"tagline": "learn vi and Vulcan at the same time",
"quantity": 3,
"price": 9.9
},
{
"code": "COM1536",
"shortDescription": "Klingon language emacs cheatsheet",
"tagline": "learn emacs and Klingon at the same time",
"quantity": 50,
"price": 9.9
},
{
"code": "MOB0555",
"shortDescription": "smartphone case with built-in screen",
"tagline": "never miss a message",
"quantity": 20,
"price": 39.9
}
]

BIN
02_advanced/uebungen/u27_zlip.zip Normal file
View File

Binary file not shown.

51
02_advanced/uebungen/u27_zlip/Regex-erklaerung.md Normal file
View File

@@ -0,0 +1,51 @@
# Regex Beispiel
Am besten löst man das mit einem regulären Ausdruck, der entweder nach **Inhalten in Anführungszeichen** sucht _oder_ nach **Inhalten ohne Kommas**.
Hier ist der passende Reguläre Ausdruck:
`/"([^"\\]*(?:\\.[^"\\]*)*)"|([^,]+)/g`
---
### Wie der Regex funktioniert
Der Ausdruck nutzt das **ODER-Prinzip (`|`)**, um zwei Szenarien zu matchen:
1. **`"([^"\\]*(?:\\.[^"\\]*)*)"` (Gruppe 1):** Matcht alles, was in doppelten Anführungszeichen steht. Er erlaubt sogar escaped Anführungszeichen (`\"`) im Text.
2. **`([^,]+)` (Gruppe 2):** Wenn keine Anführungszeichen da sind, matcht er alles bis zum nächsten Komma.
---
### Anwendung in JavaScript (Beispiel)
Da du das Ergebnis sicherlich in einem Array von einzelnen Werten brauchst, kannst du den Regex wie folgt anwenden. Hierbei nutzen wir `matchAll`, um die Treffer sauber zu trennen und die Anführungszeichen direkt zu entfernen:
```javascript
const input = '"very big, soft computer mouse","the cutest peripheral ever",10,39.90';
const regex = /"([^"\\]*(?:\\.[^"\\]*)*)"|([^,]+)/g;
const matches = [...input.matchAll(regex)];
const result = matches.map((match) => {
// Wenn Gruppe 1 existiert, war es ein String in Anführungszeichen
// Wenn Gruppe 2 existiert, war es ein unberührter Wert (Zahl)
const value = match[1] !== undefined ? match[1] : match[2].trim();
// Optional: Datentypen konvertieren
if (!isNaN(value) && value !== '') {
return Number(value);
}
return value;
});
console.log(result);
```
### Das Ergebnis (Output)
Nach dem Parsen erhältst du ein sauberes Array, bei dem die Kommas innerhalb der Strings ignoriert wurden und die Zahlen einsatzbereit sind:
```json
["very big, soft computer mouse", "the cutest peripheral ever", 10, 39.9]
```

1
02_advanced/uebungen/u27_zlip/data/csvDatei.csv Normal file
View File

@@ -0,0 +1 @@
"very big, soft computer mouse","the cutest peripheral ever",10,39.90
1 very big, soft computer mouse the cutest peripheral ever 10 39.90

11
02_advanced/uebungen/u27_zlip/data/products.csv Normal file
View File

@@ -0,0 +1,11 @@
Code,Short Description,Tagline,Quantity,Price
MUG0007,coffee mug with LCD level indicator,never again reach for the empty mug,20,49.90
MUG0013,coffee mug with bluetooth-connected coffee grounds scanner for automatized fortune telling,put the smart into coffee reading,20,99.90
OFF3145,pen with pre-warmed ink (tested on the South Pole),the pen is mightier than the cold,50,29.90
COM1001,ambidextrous computer mouse,end the dictate of left and right,10,19.90
COM0404,Easter egg themed webcam for your monitor,put an Easter egg on hardware too,20,149.90
COM0001,Vulcan language vi cheatsheet,learn vi and Vulcan at the same time,3,9.90
COM1536,Klingon language emacs cheatsheet,learn emacs and Klingon at the same time,50,9.90
MOB0555,smartphone case with built-in screen,never miss a message,20,39.90
1 Code Short Description Tagline Quantity Price
2 MUG0007 coffee mug with LCD level indicator never again reach for the empty mug 20 49.90
3 MUG0013 coffee mug with bluetooth-connected coffee grounds scanner for automatized fortune telling put the smart into coffee reading 20 99.90
4 OFF3145 pen with pre-warmed ink (tested on the South Pole) the pen is mightier than the cold 50 29.90
5 COM1001 ambidextrous computer mouse end the dictate of left and right 10 19.90
6 COM0404 Easter egg themed webcam for your monitor put an Easter egg on hardware too 20 149.90
7 COM0001 Vulcan language vi cheatsheet learn vi and Vulcan at the same time 3 9.90
8 COM1536 Klingon language emacs cheatsheet learn emacs and Klingon at the same time 50 9.90
9 MOB0555 smartphone case with built-in screen never miss a message 20 39.90

63
02_advanced/uebungen/u27_zlip/index.js Normal file
View File

@@ -0,0 +1,63 @@
import fs from 'node:fs';
import zlib from 'node:zlib';
import color from 'chalk';
const data = fs.readFileSync('data/products.csv', 'utf-8');
const toCamelCase = (str) => {
return str
.trim()
.toLowerCase()
.replace(/[^a-zA-Z0-9]+(.)/g, (match, chr) => chr.toUpperCase());
};
const convertCsvToJson = (products, ar) => {
const resultAr = products.map((str) => {
const fields = str.split(/\s*,\s*/);
const labels = ar.map((label, idx) => {
return [label, isNaN(fields[idx]) ? fields[idx] : Number(fields[idx])];
});
const obj = Object.fromEntries(labels);
// console.log(labels); // Entries Array
//console.log(obj);
return obj;
// return {
// [ar[0]]: fields[0],
// [ar[1]]: fields[1],
// [ar[2]]: fields[2],
// [ar[3]]: Number(fields[3]),
// [ar[4]]: Number(fields[4]),
// };
});
// console.log(resultAr);
const jsonStr = JSON.stringify(resultAr, '', 2);
fs.writeFile('products.json.gz', zlib.gzipSync(jsonStr), 'utf-8', (err) => {
if (err) {
console.log(err);
} else {
console.log(color.green('file created!'));
}
});
};
const productAr = data
.split('\n')
.map((row) => row.replace('\n', ''))
.filter((row) => row !== '');
const headerAr = productAr
.shift()
.split(/\s*,\s*/)
.map(toCamelCase);
// console.log('=======');
// console.log(productAr);
convertCsvToJson(productAr, headerAr);

17
02_advanced/uebungen/u27_zlip/package.json Normal file
View File

@@ -0,0 +1,17 @@
{
"name": "u27_zlib",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"type": "module",
"dependencies": {
"chalk": "^5.6.2",
"papaparse": "^5.5.4"
}
}

BIN
02_advanced/uebungen/u27_zlip/products.json.gz Normal file
View File

Binary file not shown.

54
02_advanced/uebungen/u28_password-generator/index.js Normal file
View File

@@ -0,0 +1,54 @@
// const crypto = require('node:crypto');
import crypto from 'node:crypto';
import _ from 'lodash';
const PASSWORD_LENGTH = 10;
const s = '23456789abcdefghjkmnpqrstuvwxyzABCDEFGHJKMNPQRSTUVWXYZ!.,;#$%/+*';
const buf = crypto.randomBytes(PASSWORD_LENGTH);
console.log(buf, Array.from(buf));
const password = Array.from(buf)
.map((byte) => s.charAt(byte % s.length))
.join('');
const getPassword = (amount = 10) => {
const chars = '23456789abcdefghjkmnpqrstuvwxyzABCDEFGHJKMNPQRSTUVWXYZ!.,;#$%/+*'.split('');
return _.shuffle(chars).slice(0, amount).join('');
};
console.log(password);
console.log(getPassword());
// Source - https://stackoverflow.com/a/2450976
// Posted by ChristopheD, modified by community. See post 'Timeline' for change history
// Retrieved 2026-07-10, License - CC BY-SA 4.0
function shuffle(array) {
let currentIndex = array.length;
// While there remain elements to shuffle...
while (currentIndex != 0) {
// Pick a remaining element...
let randomIndex = Math.floor(Math.random() * currentIndex);
currentIndex--;
// And swap it with the current element.
[array[currentIndex], array[randomIndex]] = [array[randomIndex], array[currentIndex]];
}
return array;
}
// Used like so
let arr = [2, 11, 37, 42];
shuffle(arr);
console.log(arr);
// Übung 28: Passwortgenerator
// Was macht der folgende Code?
// OK: Der Titel verrät es schon. Versuche dennoch, das Programm zu verstehen! Benutze die Dokumentation der Standardbibliothek, um nachzuschlagen, was crypto.randomBytes(…) genau macht!
// Bonusfrage: Warum sind in den Zeichen «1», «i» und «l» nicht enthalten, genau so wenig wie «0» und «o»?

21
02_advanced/uebungen/u28_password-generator/package-lock.json generated Normal file
View File

@@ -0,0 +1,21 @@
{
"name": "u28_password-generator",
"version": "1.0.0",
"lockfileVersion": 3,
"requires": true,
"packages": {
"": {
"name": "u28_password-generator",
"version": "1.0.0",
"dependencies": {
"lodash": "^4.18.1"
}
},
"node_modules/lodash": {
"version": "4.18.1",
"resolved": "https://registry.npmjs.org/lodash/-/lodash-4.18.1.tgz",
"integrity": "sha512-dMInicTPVE8d1e5otfwmmjlxkZoUpiVLwyeTdUsi/Caj/gfzzblBcCE5sRHV/AsjuCmxWrte2TNGSYuCeCq+0Q==",
"license": "MIT"
}
}
}

14
02_advanced/uebungen/u28_password-generator/package.json Normal file
View File

@@ -0,0 +1,14 @@
{
"name": "u28_password-generator",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"type": "module",
"dependencies": {
"lodash": "^4.18.1"
}
}

BIN
02_advanced/uebungen/u29_stream.zip Normal file
View File

Binary file not shown.

8769
02_advanced/uebungen/u29_stream/data/products.html Normal file
View File

File diff suppressed because it is too large Load Diff

BIN
02_advanced/uebungen/u29_stream/data/products.html.gz Normal file
View File

Binary file not shown.

21
02_advanced/uebungen/u29_stream/index.js Normal file
View File

@@ -0,0 +1,21 @@
// const fs = require('node:fs');
// const zlib = require('node:zlib');
import fs from 'node:fs';
import zlib from 'node:zlib';
const gzipCompressor = zlib.createGzip();
const inputStream = fs.createReadStream('data/products.html');
const outputStream = fs.createWriteStream('data/products.html.gz');
inputStream.on('data', (data) => {
console.log('Pakete (data chunks) werden geladen: ', data.length);
//outputStream.write(zlib.gzipSync(data));
});
inputStream.pipe(gzipCompressor).pipe(outputStream);
// Übung 29: Datenströme
// Schreibe Codebeispiel 239 um, ohne die Funktion pipe(…) zu verwenden!
// TIPP: Um eine Datei päckchenweise lesen- und schreiben zu können, gibt es für das fs Modul die Methoden createReadStream und createWriteStream.

13
02_advanced/uebungen/u29_stream/package.json Normal file
View File

@@ -0,0 +1,13 @@
{
"name": "03_stream",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"type": "module"
}

BIN
02_advanced/uebungen/u32_os-info.zip Normal file
View File

Binary file not shown.

35
02_advanced/uebungen/u32_os-info/index.js Normal file
View File

@@ -0,0 +1,35 @@
import os from 'node:os';
import color from 'chalk';
const platform = os.platform();
const cpu = os.cpus().length;
console.log(color.yellow(`I am running on a machine with ${platform} and ${cpu} cores.`));
//console.log(os.cpus()); //gibt ein array aus jeweils cpu kernen
console.log(os.type()); // Darwin
console.log(os.version()); // Darwin mit kernelversion
console.log(os.totalmem()); //RAM in bytes
console.log(os.freemem());
console.log(os.availableParallelism()); // 8 -> ein programm sollte max 8 parallele tasks ausführen?
console.log(os.arch()); // cpu architektur -> arm64
console.log(os.machine()); // arm64
//console.log(os.networkInterfaces());
console.log(os.hostname()); //MacBookAir
console.log(os.release()); // die releasenr und nicht datum
console.log(os.userInfo()); // Object mit Userinfos
console.log(os.userInfo().username);
// Übung 32: Information zum Betriebssystem und der Anzahl der vorhandenen CPUs
// Im Kontext einer Monitoring-Lösung benötigt ein Kunde eine kleine CLI (Command Line Interface)-Anwendung, die es erlaubt, das aktuelle Betriebssystem und die Anzahl der CPUs auf dem jeweiligen Rechner zu ermitteln.
// Vorgehensweise
// 1.Schau dir die Online-Dokumentation zum os-Modul der Standardbibliothek an.
// 2.Erstelle dann ein kurzes Node.js-Programm, das ausgibt, auf welcher Plattform es gerade läuft (also etwa »linux«, »darwin« (OS X) oder »win32«) und wie viele Kerne der Rechner hat.
// Hier eine mögliche Beispielausgabe:
// I am running on a machine with linux and 2 cores.

27
02_advanced/uebungen/u32_os-info/package-lock.json generated Normal file
View File

@@ -0,0 +1,27 @@
{
"name": "u32_os-info",
"version": "1.0.0",
"lockfileVersion": 3,
"requires": true,
"packages": {
"": {
"name": "u32_os-info",
"version": "1.0.0",
"dependencies": {
"chalk": "^5.6.2"
}
},
"node_modules/chalk": {
"version": "5.6.2",
"resolved": "https://registry.npmjs.org/chalk/-/chalk-5.6.2.tgz",
"integrity": "sha512-7NzBL0rN6fMUW+f7A6Io4h40qQlG+xGmtMxfbnH/K7TAtt8JQWVQK+6g0UXKMeVJoyV5EkkNsErQ8pVD3bLHbA==",
"license": "MIT",
"engines": {
"node": "^12.17.0 || ^14.13 || >=16.0.0"
},
"funding": {
"url": "https://github.com/chalk/chalk?sponsor=1"
}
}
}
}

14
02_advanced/uebungen/u32_os-info/package.json Normal file
View File

@@ -0,0 +1,14 @@
{
"name": "u32_os-info",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"type": "module",
"dependencies": {
"chalk": "^5.6.2"
}
}