• Adobe After Effects Expressions

  Just because I’m curious… Put an expression into a var

  Posted by Scott Mcgee on January 12, 2018 at 8:36 am

  I realised I sometimes use an expression more than once in quite a few if/else statements. I’m just used to it being bulky, but never thought about putting the repeated expression into a variable.

  a = 1;
  fad = eval(“if (time < (inPoint + outPoint)/2){ease(time,inPoint,inPoint+a,0,100);} else 0;”)
  if(thisLayer.name == “Station”){
  fad;
  } else 0;

  although this is just for testing purposes, this worked nicely.

  but this doesn’t

  a = 1;

  fad = eval(“if (time < (inPoint + outPoint)/2){
  ease(time,inPoint,inPoint+a,0,100);
  } else 0;”)

  if(thisLayer.name == “Station”){
  fad;
  } else 0;

  I kinda know why it doesn’t work, but is there a way to make the second one work?…As it would be nice just to know how to in the future. I’ve seen a few possible ways that people have put, but I’ve had no success.

  Scott Mcgee replied 8 years, 7 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Andrei Popa

  January 12, 2018 at 9:52 am

  Andrei to the rescue. In order to have a multiline expression between quotes, you need to use triple quotes. This should work:
  a = 1;

  fad = eval("""if (time < (inPoint + outPoint)/2){
  ease(time,inPoint,inPoint+a,0,100);
  } else 0;""")

  if(thisLayer.name == "Station"){
fad;
} else 0;

  Andrei
  My Envato portfolio.
• 

  Scott Mcgee

  January 12, 2018 at 10:33 am

  face and palm have just met.

  Thank you

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