title: What does the "target" property in tsconfig.json actually represent?
body: <p>I have been developing an Angular app using Typescript, and I have come to realise I need to pay more attention to the tsconfig in regards to compilation (transpilation).</p>
  
  <p>Currently in the source code I am using some es6 features (such as Array.prototype.find) and the TSLint-er is picking up these as errors.</p>
  
  <p>I'm trying to reconfigure my tsconfig so that it allows me to use es6 features but transpile to es5. In doing this, I'm failing to understand what the "target" property actually is. What does the "target" property mean? </p>
  
  <p>Does "target" represent what the desired, transpiled output will be? Or does it declare what the Typescript syntax should conform to in order to be transpiled?</p>