I was used to the concept of Master Page when I was dealing with ASP.NET in the past. When I dived into bootstrap, I was surprised that there isn’t a thing called “Master Page”.
For instant if you are having a footer such as the below
<footer> <div class="row"> <div class="col-lg-12"> © TechCentral 2016 </div> </div> </footer>
document.write( " <footer>" + " <div class='row'>" + " <div class='col-lg-12'>" + "© TechCentral 2016 " + "</div> " + "</div> " + " </footer>" );
A more detailed explanation could be found at HTML Cheats.