Code to make pages out of strings

string pagination.js

function getPages(base, maxChars, splitTerm = '\n') {
  const pages = []
  // generates an array of items based in the string
  const contentItems = base.split(splitTerm)
  let content = ''

  for (let i = 0; i < contentItems.length; i++) {
    let part = contentItems[i] + splitTerm

    // if content + part will be more than the max chars allowed,
    // add the current content as a page and then empty it
    if (content.length + part.length > maxChars
       && i + 1 !== contentItems.length) {
      pages.push(content)
      content = ''
    }

    content += part
    if (i + 1 === contentItems.length) pages.push(content)
  }
  return pages
}