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ellimccale
10,331 PointsWhy would Dave store the information to be returned in a variable, instead of just calling it directly?
For example, Dave wrote this:
function getRandomNumber() {
var randomNumber = Math.floor( Math.random() * 6 ) + 1;
return randomNumber;
}
Why would he not do this instead, to save lines?
function getRandomNumber() {
return Math.floor( Math.random() * 6 ) + 1;
}
The only reason I can imagine is because a longer value to return could get messy on one line, but in this case, where it's quite small, does it make a difference?
Thank you, friends.
3 Answers
Steven Parker
231,236 PointsI'm with you.
I'd write this exactly like your second example. I'm just speculating that it's done like this in the video because creating a variable for a result from some calculations and then returning that variable is a common theme in development. But for this particular case that variable is clearly not needed.
Matthew Garza
26,312 PointsIt's a common practice in the development community. You don't have to write it like that, you can do it your way, but it makes it easier to throw the results in a variable like that because then you can just call that variable anytime. Actually he should of made that variable global and call it in the function.
like,
var randomNumber = Math.floor( Math.random() * 6 ) + 1; function getRandomNumber() { return randomNumber; } then you can call that variable anytime in any function you need. Hope this helps : )
nfs
35,526 PointsThat's right Peterson....