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title과 link를 크롤링하는 fetch.js 빌드

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	`1`	`+import fetch from 'node-fetch';`
	`2`	`+import * as cheerio from 'cheerio';`
	`3`	`+`
	`4`	`+async function fetchBody() {`
	`5`	`+ const COURSE_URL = 'https://programmers.co.kr/learn/courses/30';`
	`6`	`+ const response = await fetch(COURSE_URL);`
	`7`	`+ const body = await response.text();`
	`8`	`+ return body;`
	`9`	`+}`
	`10`	`+`
	`11`	`+export default async function fetchTitleLink() {`
	`12`	`+ const body = await fetchBody();`
	`13`	`+ const $ = cheerio.load(body);`
	`14`	`+ const lesson = {};`
	`15`	`+`
	`16`	`+ $('.lesson-title').each(function (index, el) {`
	`17`	`+ const title = $(el).children('span').text();`
	`18`	`+ const link = $(el).attr('href');`
	`19`	`+ lesson[title] = link;`
	`20`	`+ });`
	`21`	`+ return lesson;`
	`22`	`+}`

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