• Adobe After Effects Expressions

  How to find first letter of the layer name?

  Posted by Aleksandrs Valters on November 17, 2009 at 9:52 am

  I need that AE looks at the first letter of layer name and if it is “-” then it change text color to red, if “+” to green.
  Layer text will be like “+0.2%” or “-2.33%” sometimes “0”.

  To finish my expression i need to know:
  How to make look at first letter of “thisLayer.name”?

  Aleksandrs Valters replied 16 years, 8 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  November 17, 2009 at 3:32 pm

  The layer’s name is just a JavaScript string, so something like this will work:

  if (name[0] == “-“){
  [1,0,0,1]
  }else if (name[0] == “+”){
  [0,1,0,1]
  }else{
  value
  }

  Dan
• 

  Aleksandrs Valters

  November 17, 2009 at 4:57 pm

  Thank you, it nice trick.. will use it somewhere. I found and use another way to find letter.

  substr(0,1)

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