A very dummy template engine

dummy-template-engine.js

(function() {

  function engine(template, data) {
    (template.match(/{\{(.+)\}\}/g) || []).forEach(variable => {
      var pureVar = variable.replace(/(\{|\})/g, '')
      var innerAccess = pureVar.split(/\./)
      var finalValue = innerAccess.reduce((acc, curr) => acc[curr], data)
      template = template.replace(variable, finalValue)
    })
    return template
  }

  var input = `
    <h1>{{title}}</h1>
    <div>
      <p>{{content}}</p>
      <p>title's length: {{title.length}}</p>
    </div>
  `

  var output = engine(input, {
    title: 'Hello',
    content: 'Lorem ipsum dolor sit amet'
  })

  console.log(output)

})()