Ein- und Ausgabe
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"slide_type": ""
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"tags": []
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},
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"source": [
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"# Standard-Ausgabe\n",
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"\n",
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"Geben wir nichts an, so wird automatisch das Ergebnis des letzten Befehls ausgegeben:"
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]
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"cell_type": "code",
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"execution_count": 5,
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"id": "1d7b4f6f-d399-4b8e-ad6d-bc5077d4b2e0",
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"metadata": {
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"editable": false,
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"slide_type": ""
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"tags": []
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},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"\u001b[33m11\u001b[39m"
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]
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},
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"execution_count": 5,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"8+13\n",
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"5+6"
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]
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},
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"cell_type": "markdown",
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"id": "9a3915e9-fcae-46f9-95c4-f2a197dcfe04",
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"metadata": {
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"editable": false,
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"slide_type": ""
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"tags": []
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},
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"source": [
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"Legen wir Variablen an, so wird nichts ausgegeben, da der Wert stattdessen in der Variablen gespeichert wird:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 8,
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"id": "61cbd9b7-f8e6-4b6e-94c1-e0a1bb96f2fd",
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"metadata": {
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"editable": false,
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"slideshow": {
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"slide_type": ""
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"tags": []
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},
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"outputs": [
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{
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"data": {
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"text/plain": [
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"\u001b[33m7\u001b[39m"
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]
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},
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"execution_count": 8,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"let x: number = 5\n",
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"7\n",
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"let y: number = 10"
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]
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},
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{
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"cell_type": "markdown",
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"id": "852c1c60-89ef-480b-9bb1-923e916e4f20",
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"metadata": {
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"editable": false,
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"slideshow": {
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"slide_type": ""
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},
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"tags": []
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},
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"source": [
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"# \"Konsolen\"-Ausgabe\n",
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"Soll mehr als eine Ausgabe gemacht werden, so können wir die Funktion `console.log` aufrufen und hier Parameter angeben mit allen Werten, die ausgegeben werden sollen.\n",
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"\n",
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"*Anmerkung: In klassisch im Browser ausgeführtem JavaScript erscheinen diese Ausgaben auf der Konsole, deswegen `console`*\n",
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"\n",
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"Neben `console.log` gibt es auch noch `console.error`, die eine Fehlerausgabe zusätzlich rot hinterlegt:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 13,
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"id": "664a56ad-3773-4d65-ba70-2e3d4bc3a0f8",
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"metadata": {
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"editable": false,
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"slideshow": {
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"slide_type": ""
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},
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"tags": []
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},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Hallo Welt!\n",
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"5\n",
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"10\n"
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]
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},
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{
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"name": "stderr",
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"output_type": "stream",
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"text": [
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"Das wird rot hinterlegt\n"
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]
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}
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],
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"source": [
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"console.log(\"Hallo Welt!\")\n",
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"console.log(x)\n",
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"console.log(y)\n",
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"console.error(\"Das wird rot hinterlegt\")"
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]
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},
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{
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"cell_type": "markdown",
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"id": "2e0e0c36-75ec-4fba-902d-a5b83eaebcb0",
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"metadata": {
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"editable": false,
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"slideshow": {
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"slide_type": ""
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},
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"tags": []
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},
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"source": [
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"# Eingabe\n",
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"Soll eine Eingabe des Benutzers erfolgen, so kann das mit `prompt` umgesetzt werden. Daraufhin wird im Notebook ein kleines Eingabefenster geöffnet. Das Ergebnis kann in einer Variablen abgespeichert und später wieder verwendet werden:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 14,
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"id": "de1ba2ce-fdec-49c0-be61-365d40fc789f",
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"metadata": {
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"editable": false,
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"slideshow": {
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"slide_type": ""
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},
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"tags": []
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},
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"outputs": [
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{
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"name": "stdin",
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"output_type": "stream",
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"text": [
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"Bitte Name eingeben: Alex\n"
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]
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},
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Hallo Alex\n"
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]
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}
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],
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"source": [
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"let eingabe: string = prompt(\"Bitte Name eingeben:\")\n",
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"console.log(\"Hallo \" + eingabe)"
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]
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},
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{
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"cell_type": "markdown",
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"id": "a8d30199-96c7-4ad8-9cf3-dd222d5a4d0f",
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"metadata": {
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"editable": false,
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"slide_type": ""
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},
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"tags": []
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},
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"source": [
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"## Eingabe von Zahlen\n",
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"Der Datentyp einer Eingabe ist zunächst immer ein String. Soll dieser als Zahl weiterverwendet werden, so muss er explizit mit der Funktion `parseInt` umgewandelt werden. Anschließend lässt sich damit rechnen:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 16,
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"id": "24ecee9e-843d-4a71-93cd-2060acafeb3e",
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"metadata": {
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"editable": false,
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"slideshow": {
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"slide_type": ""
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},
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"tags": []
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},
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"outputs": [
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{
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"name": "stdin",
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"output_type": "stream",
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"text": [
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"Bitte Zahl eingeben 17\n"
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]
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},
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{
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"data": {
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"text/plain": [
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"\u001b[33m19\u001b[39m"
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]
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},
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"execution_count": 16,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"let zahl: number = parseInt(prompt(\"Bitte Zahl eingeben\"))\n",
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"zahl + 2"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Deno",
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"language": "typescript",
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"name": "deno"
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},
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"language_info": {
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"codemirror_mode": "typescript",
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"file_extension": ".ts",
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"mimetype": "text/x.typescript",
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"name": "typescript",
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"nbconvert_exporter": "script",
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"pygments_lexer": "typescript",
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"version": "5.8.3"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}
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@ -0,0 +1,63 @@
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{
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"cells": [
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{
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"cell_type": "markdown",
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"id": "ab876578-aa1d-4a24-9534-f2b8d3e83bea",
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"metadata": {
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"editable": false,
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"slideshow": {
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"slide_type": ""
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},
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"tags": []
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},
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"source": [
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"# Aufgabe 01.02.6\n",
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"Lasse den Nutzer nacheinander zwei ganze Zahlen `a` und `b` eingeben und gib anschließend\n",
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"* die Summe\n",
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"* die Differenz\n",
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"* das Produkt\n",
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"* den Quotienten\n",
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"aus.\n",
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"\n",
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"Mögliche Ausgabe:\n",
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"\n",
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"```\n",
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"Erste Zahl eingeben: 12\n",
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"Zweite Zahl eingeben: 3\n",
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"Summe: 15\n",
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"Differenz: 9\n",
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"Produkt: 36\n",
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"Quotient: 4\n",
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"```\n",
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"\n",
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"*Hinweis: bei dieser Aufgabe gibt es keinen automatisierten Test auf Korrektheit!*"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"id": "b8e700ea-3053-4d6b-b905-d7c116b98f33",
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"metadata": {},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Deno",
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"language": "typescript",
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"name": "deno"
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},
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"language_info": {
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"codemirror_mode": "typescript",
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"file_extension": ".ts",
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"mimetype": "text/x.typescript",
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"name": "typescript",
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"nbconvert_exporter": "script",
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"pygments_lexer": "typescript",
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"version": "5.8.3"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 5
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}
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