/**
 * Allows Scala-like stripMargin
 *
 * Parameters are applied implicitly via ES2015.
 *
 * @example
 * // returns "The Number is:\n    100\nThanks for playing!"
 * let num = 100
 * let result = stripMargin`The Number is:
 *         |    ${num}
 *         |Thanks for playing!`
 * get the gist: https://gist.github.com/jimschubert/06fea56a6d2a1e7fdbc2
 */
function stripMargin(template, ...expressions) {
  let result = template.reduce((accumulator, part, i) => {
    return accumulator + expressions[i - 1] + part
  })

  return result.replace(/\r?(\n)\s*\|/g, '$1');
}

class App {
    constructor(){
      this.text =`
         This is an example of what could be considered a 
         "problem" with ES6 multiline strings.

         Each of these lines will have 7 characters of whitespace
         at the beginning of the line.`;
    }
}

class AppStripped {
    constructor(){
      this.text = stripMargin`
         |This is an example of using the stripMargin 
         |tag template helper.
         |
         |Each of these lines is prefixed with a | character
         |which indicates the start of the line in the 
         |templated string.`;
    }
}

document.getElementById('original').innerText = new App().text;

document.getElementById('stripped').innerText = new AppStripped().text;