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Leeroy J

Adjust animation time length depending on text character length?

Warning: Please note

This thread was started before GSAP 3 was released. Some information, especially the syntax, may be out of date for GSAP 3. Please see the GSAP 3 migration guide and release notes for more information about how to update the code to GSAP 3's syntax. 

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I have a simple timeline that shows my headline then fades out. 

 

<div id="headline1">Dynamic text that may be 1 - 60 characters.</div>

 

  var tl = new TimelineMax();
      tl.from("#headline1", 0.4, {autoAlpha:0}) 		//headline fade in
        .to("#headline1", 0.4, {autoAlpha:0}, "+=3.5"); 	//headline fade out

 

Is it possible to make my headline visible depending on how many characters are in my headline?

 

ie:

10 characters = 1 second before fading out

60 characters = 5 seconds before fading out

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Sure can ... just grab the string length and perform some operation on it to get your desired delay. Then assign that delay value to the delay property. Here's an example,

 

See the Pen KmJmXy?editors=1010 by sgorneau (@sgorneau) on CodePen

 

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Thanks @Shaun Gorneau your code was just what I was after.

 

This is what I ended up using (plain javascript)

 

 

  delay = Math.ceil(dynamic_headline1.length/14);
  console.log("headline1 is visable for " + dynamic_headline1.length/14 + " seconds");
  
  var tl = new TimelineMax();
  	  tl
        .to("#headline1", 0.8, {autoAlpha:0, delay: delay})  //text fade out
    return tl;
}
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