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| const f9 = pipe( | |
| a => ({ status: a }), | |
| a => Promise.reject('reject!'), | |
| ).exception(e => e && e.status == 10) ( | |
| e => console.log('e 10') | |
| ).error( | |
| e => console.log(e) | |
| ).nullable( | |
| e => console.log('nullable~') | |
| ); |
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| const isNagativeNumber = a => a < 0; | |
| const f7 = pipe( | |
| a => a - 10, | |
| a => a + 100 | |
| ).exception(isNagativeNumber) ( | |
| _ => console.log('์ค๊ฐ์ ๋น ์ ธ๋์ด') | |
| ); | |
| console.log( f7(10) ); // 100 |
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| const f4 = pipe( | |
| a => a + 10, | |
| a => asdasd123asdasd, | |
| a => a + 100 // <-- ์ค์ง ์์ต๋๋ค. | |
| ).error(log); // ReferenceError: asdasd123asdasd is not defined | |
| log(f4(1)); // undefined ๋ฆฌํด๋๊ณ , error๋ก ๊ฐ์ ์๋ฌ ์ถ๋ ฅ | |
| const f5 = pipe( | |
| a => a + 10, |
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| const f0 = pipe( | |
| a => a + 10, // <--- null ์จ ๊ฒฝ์ฐ ์คํ๋์ง ์์ | |
| a => a + 100 // <--- null ์จ ๊ฒฝ์ฐ ์คํ๋์ง ์์ | |
| ).nullable(); | |
| console.log( f0(1) ); // 111 | |
| console.log( f0(null) ); // null | |
| const f1 = pipe( | |
| a => a + 10, // <--- null ์จ ๊ฒฝ์ฐ ์คํ๋์ง ์์ |
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| // ๋์์ users์ posts ์ถ๋ฐ | |
| const res1 = awiat concurrency({ | |
| users: _=> query(...), | |
| posts: _=> query(...) | |
| }); | |
| //{ | |
| // users: [row, row, row, ...] | |
| // posts: [row, row, row, ...] | |
| //} |
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| some(pipe(get, isBlah), [{ ... }, { ... }, { ... }]); | |
| // - ํ๋์ฉ ์๋ | |
| // - ๋ง์ผ ์ฒซ ๋ฒ์งธ์์ ์ฐธ์ ๋ง๋ค๋ฉด ๋ค์ 2๊ฐ๋ ๋๋น ์์ฒญ์ ํ์ง ์์ | |
| someC(pipe(get, isBlah), [{ ... }, { ... }, { ... }]); | |
| // - ๋์์ 3๊ฐ ๋ชจ๋ ๋๋น ์์ฒญ | |
| // - ๋จผ์ ์จ ๊ฒฐ๊ณผ๋ฅผ ํตํด ์ฐธ์ ๋ง๋ค๋ฉด ๋๋จธ์ง ๊ฒฐ๊ณผ๋ฅผ ๋ ๊ธฐ๋ค๋ฆฌ์ง ์๊ณ ๋ค์์ผ๋ก ๋์ด๊ฐ |
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| go([0, 0, 3000, 5000, 6000, 1000, 5000], | |
| someC(a => new Promise(function (resolve) { | |
| setTimeout(function() { resolve(a); }, a); | |
| })), | |
| b => console.log(b, '<----------- 1์ด ๋ค')); | |
| // true <----------- 1์ด ๋ค | |
| // - ๋ชจ๋ ๊ฐ์ ํด๋นํ๋ ํจ์ ํ๊ฐ | |
| // - 1000์ด ๊ฐ์ฅ ๋จผ์ ๊ฒฐ๊ณผ๋ฅผ ๋ง๋ค์ด์ 1์ด ๋ค ๊ฒฐ๊ณผ๋ฅผ ์ฆ์ ๋ฆฌํดํ๊ณ , ๋๋จธ์ง๋ ๊ธฐ๋ค๋ฆฌ์ง ์์ |
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| go([0, 0, 3000, 5000, 6000, 1000, 5000], | |
| some(a => new Promise(function (resolve) { | |
| setTimeout(function() { resolve(a); }, a); | |
| })), | |
| b => console.log(b, '<---------- 3์ด ์ ๋ ๋ค')); | |
| // true <------ 3์ด ์ ๋ ๋ค | |
| // - 0, 0, 3000์ ํด๋นํ๋ ํจ์๋ง ํ๊ฐ |
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| (async function() { | |
| const list = [1, 2, 3, 4]; | |
| const result = await map(async function(val) { | |
| return await add2(val); | |
| }, list); | |
| console.log(result, 'async/await 3'); | |
| // [3, 4, 5, 6] async/await 3 | |
| }) (); |
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| (async function() { | |
| const list = [1, 2, 3, 4]; | |
| const result = await list.map(async function(val) { | |
| return await add2(val); | |
| }); | |
| console.log(result, 'async/await 2'); | |
| // [Promise, Promise, Promise, Promise] async/await 2 | |
| }) (); |