• Adobe After Effects Expressions

  Changing variable value based on multiple conditions

  Posted by Kevin Snyder on May 7, 2020 at 6:48 am

  I’m trying to change the value of a variable based on four different conditions so that in each condition the value of the variable will be different. I’m trying the code below, but running into some errors. Is there a better way to tackle this?

  if (myProp && !altKey)
{var myControl = myEffect + " " + myGroup + " " + "-" " " myLayerName}
else if (!myProp && altKey)
{var myControl = myEffect}
else if(!myProp && !altKey)
{var myControl = myEffect + " " + "-" " " myLayerName}
else if (myProp && altKey)
{var myControl = myEffect + " " + myGroup};

  Kevin Snyder replied 6 years ago 3 Members · 3 Replies
• 3 Replies

• 

  Robert Müller

  May 7, 2020 at 8:27 am

  Hi, just so that I understand correctly: The four conditions HAVE to be based on the 2 different variables myProp and altKey and their different states? Can you share some more details why 1 variable wouldnt be enough?
• 

  Andrei Popa

  May 7, 2020 at 11:14 am

  You can’t have strings like that without + between them. Try this
  
if (myProp && !altKey) {
var myControl = myEffect + " " + myGroup + " " + "-" + " " + myLayerName;
} else if (!myProp && altKey) {
var myControl = myEffect;
} else if (!myProp && !altKey) {
var myControl = myEffect + " " + "-" + " " + myLayerName;
} else if (myProp && altKey) {
var myControl = myEffect + " " + myGroup;
}


  Andrei
  My Envato portfolio.
• 

  Kevin Snyder

  May 7, 2020 at 7:27 pm

  Thank you for the feedback Andrei. I appreciate it!

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