isjdas.js

function lessOfTwo(a,b){
	a < b ? a : b;
};

console.log(lessOfTwo(10,20));

Background: Coding style is a contentious issue. I'll do my best to keep my comments to what I have observed the most people doing.

Comments:

• Use spaces instead of tabs, it renders better in web browsers. It seems like lots of people do this.
• Don't user the ternary operator, it is considered "difficult to read." The number of situations in which it can be appropriately used are so small that, in my opinion, we just shouldn't use it. I can expand on this more but it's better to do so over the phone. Use an "if" block instead.
• Don't use single letter variable names. In this case its not terribly important because its so simple. But as you add more variables or have to come back and read your own code later it gets really important. Suggested names "first" and "second."