Generate test data from the bacon ipsum API

generate-test-data.js

async function generateTestData (paragraphs = null, columns = 10, addBlanks = true) {
  let numParagraphs = parseInt(paragraphs)
  if (Number.isNaN(numParagraphs)) {
    numParagraphs = Math.floor(Math.random() * 6) + 1
  }

  const testData = await fetch(`https://baconipsum.com/api/?type=meat-and-filler&paras=${numParagraphs}`)
                         .then(response => response.json())
                         .then(data => data.join(' ').split(' ').filter(Boolean))

  if (addBlanks) {
    new Array(testData.length).fill(0)
                              .map((value, index) => Math.random() > 0.8 ? index : null)
                              .filter(val => val !== null)
                              .reverse()
                              .forEach(index => testData.splice(index, 0, ''))
  }

  const testDataLines = []
  while (testData.length > 0) {
    testDataLines.push(testData.splice(0, columns))
  }

  return testDataLines.map(values => values.join('\t')).join('\n')
}