• Adobe After Effects Expressions

  parseInt boolean value

  Posted by Oscar Nyquist on December 9, 2021 at 1:02 pm

  Hello,

  I’m using a source text property to control a boolean expression (in this case, to set auto leading on a text layer). I know I can just use 0/1 in my source text, but I would like to be able to use true/false instead.

  Here’s what I have:

  aL = thisComp.layer("orderData").text.sourceText.split(",")[3];
  GEN = style.setAutoLeading(aL);

  The string being extracted from the source text is simply the word “true”. However, it still gives me an error, I assume because AE can’t parse the string as a boolean value.

  Is there an easy way to parse the boolean value from the source text property and insert it directly into my setAutoLeading expression? I could of course use an IF statement to get around the issue, but I would like to check first if I’m missing a simpler solution.

  Thanks!

  Oscar Nyquist replied 4 years, 8 months ago 3 Members · 4 Replies
• 4 Replies

• 

  Andrei Popa

  December 9, 2021 at 1:05 pm

  You could simply check if the word is “true” by changing the second line to

  GEN = style.setAutoLeading(aL == "true");

  If the word is anything else but “true”, auto leading is set to false.
• 

  Oscar Nyquist

  December 9, 2021 at 1:12 pm

  Thank you for the quick reply!

  That’s a good workaround. Do you have any idea about whether what I asked about initially is simply impossible within the limitations of JS?

  That is, if there’s any way to parse a non-numerical string into a boolean value? Would be good to know for future reference.
• 

  Dan Ebberts

  December 9, 2021 at 5:21 pm

  I guess you could parse it with eval(), like this:

  aL = eval(thisComp.layer("orderData").text.sourceText.split(",")[3]);
  
• 

  Oscar Nyquist

  December 10, 2021 at 3:27 pm

  Cool, thank you very much!

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