In the exercise, 3/7: Put Logic in a Render Function, the lesson says "A render function can also be a fine place to put simple calculations that need to happen right before a component renders. Here's an example of some calculations inside of a render function". A "simple calculation" is placed inside the render function:
var n = Math.floor(Math.random()*10+1);
However, in the very next exercise 4/7: Use a Conditional in a Render Function, a very similar calculation is done outside (and before) the call to create the component class:
var fiftyFifty = Math.random() < 0.5;
- When would one want to include such a calculation inside the render function (as in 3/7)?
- When would one want to include it before (as in 4/7)?
- Is one or the other a best practice?
The two exercises seem contradictory or at least don't explain why to do it one way or the other.
Thanks in advance!