Page 133 - Nodejs 교과서 개정2판

pipeח झ౟ܿ ࢎ੉ী ৈ۞ ߣ োѾೡ ࣻ ੓णפ׮ ׮਺ ௏٘ח ౵ੌਸ ੍਷ റ H[JQ ߑधਵ۽ ঑୷ೞח ௏٘ੑ

פ׮

gzip.js

const zlib = require('zlib');
const fs = require('fs');

const readStream = fs.createReadStream('./readme4.txt');
const zlibStream = zlib.createGzip();
const writeStream = fs.createWriteStream('./readme4.txt.gz');
readStream.pipe(zlibStream).pipe(writeStream);

֢٘ীࢲח ౵ੌਸ ঑୷ೞח [MJC੉ۄח ݽٕب ઁҕ೤פ׮ ੉ ଼ীࢲח ݆੉ ࢎਊೞ૑ ঋਵ޲۽ ٮ۽ ࢸݺೞ૑
ח ঋणפ׮ ׮݅ [MJC੄ createGzip੉ۄח ݫࢲ٘о झ౟ܿਸ ૑ਗೞ޲۽ readStreamҗ writeStream ઺рী

ࢲ ౵੉ೝਸ ೡ ࣻ ੓णפ׮ ߡಌ ؘ੉ఠо ੹׳غ׮о H[JQ ঑୷ਸ Ѣ஘ റ ౵ੌ۽ ॄ૘פ׮

콘솔

$ node gzip

SFBENF UYU H[ ౵ੌ੉ ࢤࢿؾפ׮ ঑୷ػ ౵ੌ੉ۄ ղਊޛਸ ੍ӝח ൨ٟפ׮

੉ۧѱ ੹୓ ౵ੌਸ ݽف ߡಌী ੷੢ೞח readFile ݫࢲ٘৬ ࠗ࠙ਵ۽ աׇ ੍ח createRead Stream ݫࢲ٘ܳ
ঌইࠌणפ׮ ੉ ف ݫࢲ٘੄ ݫݽܻ ࢎਊ۝੉ ঴݃ա ׮ܲ૑ पઁ۽ ഛੋ೧ࠁѷणפ׮

׮਺਷ (# ਊ۝੄ ఫझ౟ ౵ੌਸ ݅٘ח ௏٘ੑפ׮ ݢ੷ അ੤ ٘ۄ੉࠳ী ୽࠙ೠ ਊ۝੉ թই ੓ח૑ ഛੋೞ
Ҋ प೯೧ঠ ೤פ׮ दр੉ ઑӘ ݆੉ ࣗਃؼ ࣻ ੓णפ׮

createBigFile.js
const fs = require('fs');
const file = fs.createWriteStream('./big.txt');

for (let i = 0; i <= 10000000; i++) {
file.write('안녕하세요. 엄청나게 큰 파일을 만들어 볼 것입니다. 각오 단단히 하세요!\n');
}
file.end();

콘솔

$ node createBigFile

readFile ݫࢲ٘ܳ ࢎਊೞৈ CJH UYUܳ CJH UYU۽ ࠂࢎ೧ࠁѷणפ׮