count_of_search_results

count.js

const puppeteer = require('puppeteer');
const columnify = require('columnify');

const url = 'https://www.google.co.jp/';
const args = process.argv.slice(2);

(async () => {
  const browser = await puppeteer.launch();

  let results = await Promise.all(args.map(async (word) => {
    const page = await browser.newPage();
    await page.goto(url);
    await page.type('input[name="q"]', `"${word}"`);
    await page.keyboard.press('Enter');
    await page.waitForNavigation();
    const text = await page.evaluate(() => {
      const element = document.querySelector('#resultStats');

      return element ? element.textContent : '';
    });

    const match = text.match(/[\d,]+/);
    const rawCount = (match || ['0'])[0];
    const count = Number(rawCount.replace(/,/g, ''));

    return { word, rawCount, count }
  }));

  results = results.sort((a, b) => {
    if (a.count < b.count) return 1;
    if (a.count > b.count) return -1;
    return 0;
  })

  console.log(columnify(results, {
    columns: ['word', 'rawCount'],
    config: {
      word: { headingTransform: () => '単語' },
      rawCount: { headingTransform: () => '件数' }
    }
  }));

  await browser.close();
})();

package.json

{
  "private": true,
  "dependencies": {
    "columnify": "^1.5.4",
    "puppeteer": "1.16.0"
  }
}