created gfg scrapper

Author: Dev-200219

.gitignore

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+node_modules

facts/practice.js

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+const fs = require('fs');
+const puppeteer = require('puppeteer');
+let questions = {}
+
+
+async function pattern532(dsaTopic) {
+    const browser = await puppeteer.launch({
+        headless: false,
+        defaultViewport: null,
+        args: ["--start-maximized"],
+        slowMo: 75
+    });
+    const page = await browser.newPage();
+    await page.goto('https://practice.geeksforgeeks.org/explore/?page=1');
+    
+    await page.waitForSelector("div[href='#collapse4'] h4")
+
+    await page.click("div[href='#collapse4'] h4", { delay: 2000 })
+    
+    await page.click("#moreCategories", { delay: 2000 })
+    
+    await page.waitForSelector("#searchCategories");
+    
+    await page.type("#searchCategories", dsaTopic)
+    
+    await page.click('[style="font-size: 12px; padding: 10px; display: block;"]', { delay: 2000 })
+}
+
+pattern532("Recursion");

gfgScrapper.js

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+const fs = require('fs');
+const puppeteer = require('puppeteer');
+let questions = {}
+
+
+async function pattern532(dsaTopic) {
+    const browser = await puppeteer.launch({
+        headless: false,
+        defaultViewport: null,
+        args: ["--start-maximized"],
+        slowMo: 75
+    });
+    const page = await browser.newPage();
+    await page.goto('https://practice.geeksforgeeks.org/explore/?page=1');
+    await page.waitForSelector("div[href='#collapse4'] h4")
+    // await page.click(".clearFilters")
+
+    await page.evaluate(function () {
+        document.querySelector("div[href='#collapse4'] h4").click();
+        document.querySelector("#moreCategories").click();
+    })
+
+    // await page.click("#moreCategories");
+    await page.waitForSelector("#searchCategories");
+    await page.type("#searchCategories", dsaTopic)
+
+    await page.click('[style="font-size: 12px; padding: 10px; display: block;"]',{delay:2000})
+    await page.click("#selectCategoryModal",{delay:500})
+
+    // await page.click(".modal-body button.close", { delay: 2000 })
+    // await page.click("label[style='display: block;']", { delay: 1000 })
+    // await page.click("label[style='display: block;']")
+    // await page.click("label[style='display: block;']")  
+
+
+    await page.click("div[href='#collapse1'] h4", { delay: 2000 });
+    await Promise.all([
+        page.waitForNavigation(),
+        page.click("[value='0']", { delay: 2000 })
+    ])
+
+
+
+    let easyQ = await page.evaluate(function () {
+        let easyQ = {};
+        let problemName = document.querySelectorAll(".panel.problem-block div>span");
+        let problemLink = document.querySelectorAll(".panel.problem-block a");
+
+        for (let i = 0; i < 5; i++) {
+
+            easyQ[problemName[i].innerText] = problemLink[i].getAttribute("href");
+        }
+
+        return easyQ;
+    })
+
+    questions["Easy Questions: "] = easyQ;
+
+    await page.click("[value='0']", { delay: 2000 })
+
+    await Promise.all([
+        page.waitForNavigation(),
+        page.click("[value='1']", { delay: 2000 })
+    ])
+
+    await page.waitForSelector(".panel.problem-block div>span")
+
+    let mediumQ = await page.evaluate(function () {
+        let mediumQ = {};
+        let problemName = document.querySelectorAll(".panel.problem-block div>span");
+        let problemLink = document.querySelectorAll(".panel.problem-block a");
+
+        for (let i = 0; i < 3; i++) {
+
+            mediumQ[problemName[i].innerText] = problemLink[i].getAttribute("href");
+        }
+
+        return mediumQ;
+    })
+
+    questions["Medium Questions: "] = mediumQ
+
+    await page.click("[value='1']", { delay: 2000 })
+    await Promise.all([
+        page.waitForNavigation(),
+        page.click("[value='2']", { delay: 2000 })
+    ])
+
+    await page.waitForSelector(".panel.problem-block div>span")
+
+    let hardQ = await page.evaluate(function () {
+        let hardQ = {};
+        let problemName = document.querySelectorAll(".panel.problem-block div>span");
+        let problemLink = document.querySelectorAll(".panel.problem-block a");
+
+        for (let i = 0; i < 2; i++) {
+
+            hardQ[problemName[i].innerText] = problemLink[i].getAttribute("href");
+        }
+
+        return hardQ;
+    })
+
+    questions["Hard Questions: "] = hardQ;
+
+    let fileName= dsaTopic+" Questions.json";
+
+    fs.writeFile(fileName, JSON.stringify(questions), function (err) {
+        if (err)
+        {
+            console.log(err);
+        }
+        browser.close();
+    })
+
+}
+
+pattern532("Graph");