Function insertAtLineAtIndex

tools/js/utils/insert-at-line.js:28–37

(oldContents, index, content)

}

const insertAtLineAtIndex = (oldContents, index, content) => {
  const line = getLineNumberOfIndex(oldContents, index)
  const lines = oldContents.split('\n')
  lines.splice(line, 0, content)

  return `${lines
    .join('\n')
    .replace(/\n{3,}/g, '\n\n')
    .replace(/\n*$/, '')}`
}

export { insertAtLineAtIndex }