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๐Ÿ”€: Udemy/Ts/section2/16 (#20)
* ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: README์„ ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: issue templates ์ƒ์„ฑ Github์—์„œ ์ž‘์„ฑํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: pr-template ์ƒ์„ฑ Github์—์„œ ์ž‘์„ฑํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: pr-template ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐ŸŒฑ: pr-template ์ˆ˜์ • Github์—์„œ ์ˆ˜์ •ํ•œ ์ปค๋ฐ‹์ž…๋‹ˆ๋‹ค. * ๐Ÿšฉ: udemy section2์˜ 14๋ฒˆ ๊ฐ•์˜๋ฅผ ๋“ฃ๊ณ  ์‹ค์Šต์„ ํ–ˆ๋‹ค. * ๐Ÿšฉ: ๊ฐ์ฒด์™€ ์ถ”๋ก  ๊ฐ์ฒด ํƒ€์ž…์˜ ์ฐจ์ด * ๐Ÿ›: object๋กœ ํƒ€์ž…์„ ์ง€์ •ํ•˜๋ฉด ์ผ๋ฐ˜์ ์ธ ๊ฐ์ฒด๋กœ ์ ‘๊ทผํ•  ์ˆ˜ ์—†๋‹ค๋Š” error๊ฐ€ ๋ฐœ์ƒํ•œ๋‹ค. * ๐Ÿšฉ: ์žฌํ™œ์šฉ์„ ๊ฐ€๋Šฅํ•œ ๊ฐ์ฒด ํƒ€์ž… ์ •์˜ ๋ฐฉ๋ฒ•๊ณผ ๊ฐ์ฒด ์ •์˜์™€์˜ ์ฐจ์ด
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โ€Žsrc/app.js

Lines changed: 6 additions & 13 deletions
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@@ -1,13 +1,6 @@
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function add(n1, n2, showResult, phrase) {
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if (showResult) {
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console.log(n1 + n2);
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}
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else {
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return n1 + n2;
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}
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}
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var number1 = 5;
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var number2 = 2.8;
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var printResult = true;
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var resultPhrase = 'Result is: ';
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add(number1, number2, printResult, resultPhrase);
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//console.log(person.name); ์œผ๋กœ person.name, ๊ฐ์ฒด ํƒ€์ž…์œผ๋กœ ์ ‘๊ทผํ•˜๊ธฐ ์œ„ํ•œ object ํƒ€์ž… ์ •์˜ ๋ฐฉ๋ฒ•
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var person = {
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name: 'Maximilian',
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age: 30
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};
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console.log(person.name); //error : Object์— name์ด ์—†์Šต๋‹ˆ๋‹ค. ๊ทธ๋ ‡๋‹ค๋ฉด ์–ด๋–ป๊ฒŒ ํ•ด์•ผํ• ๊นŒ?

โ€Žsrc/app.ts

Lines changed: 12 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -1,16 +1,13 @@
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function add(n1: number, n2: number, showResult: boolean, phrase: string) {
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const result = n1 + n2; //result๋Š” number๋ผ๊ณ  ์ถ”๋ก ์„ ํ•œ๋‹ค.
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if (showResult) {
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console.log(result + phrase);
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} else {
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return n1 + n2;
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}
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}
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//console.log(person.name); ์œผ๋กœ person.name, ๊ฐ์ฒด ํƒ€์ž…์œผ๋กœ ์ ‘๊ทผํ•˜๊ธฐ ์œ„ํ•œ object ํƒ€์ž… ์ •์˜ ๋ฐฉ๋ฒ•
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const person: {
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//entry ์ถ”๊ฐ€
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//์•ž์„œ ๋งํ–ˆ ๋“ฏ ๊ฐ์ฒด ํƒ€์ž…์„ ์ •์˜ํ•˜๊ธฐ ์œ„ํ•ด์„œ๋Š” ํ• ๋‹น ํ›„ `;`๋ฅผ ๋ถ™์—ฌ์•ผ ํ•œ๋‹ค.
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name: string;
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age: number;
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// ์ด๋ ‡๊ฒŒ ์ž‘์„ฑ์„ ํ•˜๊ฒŒ ๋˜๋ฉด ์ถ”ํ›„์— ์ •์˜ํ•œ ๊ฐ์ฒด ํƒ€์ž…์„ ์žฌํ™œ์šฉํ•  ์ˆ˜ ์žˆ๊ฒŒ ๋œ๋‹ค.
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} = { //`{}` ํŠน์ • ๊ฐ์ฒด ํƒ€์ž…์„ ์œ„ํ•œ ํ‘œ๊ธฐ๋ฒ•, ๊ฐ์ฒด์˜ ๊ตฌ์กฐ ์ •๋ณด๋ฅผ ์ œ๊ณตํ•˜๋Š” ๊ฒƒ. ๋นˆ `{}`์œผ๋กœ ํ• ๋‹น์„ ํ•˜๋ฉด ๊ฐ์ฒด๋กœ ํ• ๋‹นํ•˜๋Š” ๊ฒƒ๊ณผ ๋™์ผ์‹œํ•œ๋‹ค.
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name: 'Maximilian',
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age: 30
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};
912

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const number1 = 5;
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const number2 = 2.8;
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const printResult = true;
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const resultPhrase = 'Result is: ';
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// resultPhrase = 0; //error -> ํƒ€์ž… ์ถ”๋ก ์œผ๋กœ resultPhrase๋Š” string์ด๋‹ค. ๋”ฐ๋ผ 0์ด๋ผ๋Š” numberํƒ€์ž…์„ ํ• ๋‹นํ•  ์ˆ˜ ์—†๋‹ค.
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add(number1, number2, printResult, resultPhrase);
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console.log(person.name); //error : Object์— name์ด ์—†์Šต๋‹ˆ๋‹ค. ๊ทธ๋ ‡๋‹ค๋ฉด ์–ด๋–ป๊ฒŒ ํ•ด์•ผํ• ๊นŒ?

โ€Žsrc/basics.ts

Lines changed: 16 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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function add(n1: number, n2: number, showResult: boolean, phrase: string) {
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const result = n1 + n2; //result๋Š” number๋ผ๊ณ  ์ถ”๋ก ์„ ํ•œ๋‹ค.
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if (showResult) {
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console.log(result + phrase);
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} else {
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return n1 + n2;
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}
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}
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const number1 = 5;
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const number2 = 2.8;
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const printResult = true;
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const resultPhrase = 'Result is: ';
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// resultPhrase = 0; //error -> ํƒ€์ž… ์ถ”๋ก ์œผ๋กœ resultPhrase๋Š” string์ด๋‹ค. ๋”ฐ๋ผ 0์ด๋ผ๋Š” numberํƒ€์ž…์„ ํ• ๋‹นํ•  ์ˆ˜ ์—†๋‹ค.
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add(number1, number2, printResult, resultPhrase);

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