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JavaScript JavaScript Basics (Retired) Creating Reusable Code with Functions Create a max() Function

idriss Elouilani
PLUS
idriss Elouilani
Courses Plus Student 1,232 Points
Posted by idriss Elouilani
idriss Elouilani
Courses Plus Student 1,232 Points

I create the first function max but is not working

function max (10,6){ var twoNumber = larger of the two numbers; if (the first number >the second number); return true}else {return false }

script.js 
function max (10,6){
  var  twoNumbers = larger of the two numbers;
  if ( the first number> the second numberlse
}else{ return false;
}

3 Answers

Bryan Knight
Bryan Knight
34,215 Points

It could look something like this: 

function max(num1, num2){
  if(num1 > num2){
    return num1;
  } else {
    return num2;
  }
}

You take in two arguments (here I call them num1 and num2). Your conditional checks to see if num1 is greater than num2. If it is then you'll return num1 otherwise (else) return num2.

if you want to get a little fancy with a one liner (ternary) you can do this:

function max(num1, num2) {
return num1 > num2 ? num1 : num2;
}
Nick Trabue
PLUS
Nick Trabue
Courses Plus Student 12,666 Points
Nick Trabue
Nick Trabue
Courses Plus Student 12,666 Points

You want functions to be reusable so your parameters can be called whatever you want. 

function max (x,y){
  //see if x is larger than y
  if (x>y) {
   //if it is return x
    return x
  } else {
   //otherwise return y 
    return y;
  }

//Now because it is a function I can reuse it wherever I'd like keeping your code DRY
max(6,4)
//returns 6

max(10,3)
//returns 10

max(10,6)
//returns 10
}