• Adobe After Effects Expressions

  Array value rather than content

  Posted by Scott Mcgee on February 7, 2018 at 9:21 am

  I have a conditional if/else expression

  if(thisLayer.name == “Word1”){
  loc = 0;
  } else if (thisLayer.name == “Word2”){
  loc = 1;
  } else loc = 2;

  As I have 8 of these, times by 8 I want to simplify it.

  varArray = [“Word1″,”Word2″,”Word3″,”Word4″,”Word5”];

  if I use the expression

  varArray[0] …. I get “Word1”

  How can I do it the other way, so if I tell it “Word1” it returns 0.

  Scott Mcgee replied 8 years, 6 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  February 7, 2018 at 2:23 pm

  You could set it up as an associative array:

  var myArray = [];
  myArray[“Word1”] = 0;
  myArray[“Word2”] = 1;
  myArray[“Word3”] = 2;
  myArray[“Word4”] = 3;
  myArray[“Word5”] = 4;

  myArray[“Word3”] // should return 2

  Dan
• 

  Scott Mcgee

  February 7, 2018 at 2:30 pm

  Cheers Dan that works brilliantly.

  I was trying to use it in conjunction with referencing my Json file…Someone from IT had pointed out that you can title your keys. So they don’t have to be [0] or [1], you can give them values.

  So this works better than what I wanted to use it for. I’ve just posted it up as I could not find anything mentioning about labelling Json’s like this. So I think it’s worth sharing.

  {
  “bristol”:{
  “city”:”BRISTOL”,
  “condition1″:”Partly Cloudy”,
  “condition2″:”Partly Cloudy”,
  “condition3″:”Partly Cloudy”,
  “condition4″:”Partly Cloudy”,
  “condition5″:”Partly Cloudy”,
  “condition6″:”Partly Cloudy”,
  “maxtemp1”:6,
  “maxtemp2”:8,
  “maxtemp3”:8,
  “maxtemp4”:8,
  “maxtemp5”:8,
  “maxtemp6”:8,
  “windspeed1”:20,
  “windspeed2”:20,
  “direction1”:131,
  “direction2”:131
  },
  “bath”:{
  “city”:”BATH”,
  “condition1″:”Heavy Rain”,
  “maxtemp1”:4,
  “maxtemp2”:8,
  “windspeed1”:20,
  “windspeed2”:20,
  “direction1”:131,
  “direction2”:131
  }
  }

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