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Trying to get a function from a text source via expressions : line break break the atempt …
Hi !
It seems there is no natural way to use global functions in AE. (it really complicates my daily life these days …)
I tried to define two such functions in a text layer and access them in an expression :monCode = thisComp.layer(“CODE —–JS —–“).text.sourceText.value
eval(monCode);It doesn’t work because of the line breaks in the code of my global function. In fact when I strip the string of its line feeds (with a text editor) it works. :
(but living in a line-break-less world is a nightmare.)
I tried this :monCode = thisComp.layer(“CODE —–JS —–“).text.sourceText.value
monCode = monCode.replace(/(\r\n|\n|\r)/gm, ” “);
eval(monCode);It does no good.
In fact the js code of my global function seems to be ignored in the text source property if there is a line break in it.Anybody knowing a solution ?
And BTW, do you know why these necessary-obvious-basic global functions are not present in AE.
Is there a plugin doing this ?T-H-A-N-K-S !
monCode = thisComp.layer("CODE -----JS -----").text.sourceText.value
eval(monCode);then :
monCode = thisComp.layer("CODE -----JS -----").text.sourceText.value
monCode = monCode.replace(/(\r\n|\n|\r)/gm, " ");
eval(monCode); -
4 Replies
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If I create a text layer named “CODE —–JS —–” that looks like this:
function square(a){
return a*a;
}And then on another layer use this expression:
monCode = thisComp.layer(“CODE —–JS —–“).text.sourceText.value
eval(monCode);
square (10)I get 100, as expected. I’m not sure where you’re running into trouble.
Dan
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Try appending your replace part with \x03. It should help to finalise all breaks scenarios.
Find out more:
After Effects Tutorials: motion design, expressions, scripting. -
Thanks Dan !
Well, it’s embarrassing. I’ve just created a new test file. I did (nearly) the same things. And then everything works.
… I have been struggling too many hours for this, and you just showed me there is nothing to worry about.Note that the layer using the function is a shape layer … I will try to solve this tomorrow … and I’ll let you know …
But I am really glad : I will be using (a sort of) global functions …
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Thanks Tomas !
I was looking for the right character code … until Dan Showed me that there is no need to remove breaks … ☺
I will try to find the reason for my troubles tomorrow …
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