Simple es6 heredoc thingy

demo.es6

var html = heredoc `
  <section>
    <h1> title</h1>
    <p>content</p>
  </section>
`

heredoc.es6

function leastSpaces(length, line) {
  if(!line.length) return length
  var spaces = line.match(/^\s+/).pop().length
  return spaces < length ? spaces : length
}

function heredoc(strings) {
  var lines = strings.join('').split(/\r?\n/)
  var spaces = lines.reduce(leastSpaces, Infinity)
  return lines.map(line => line.substring(spaces)).join('\n')
}