Skip to main content
peter.nicolai.sf
peter.nicolai.sf
Participant
February 12, 2020
Answered

How to find Javascript version in Photoshop 21.0.3?

  • February 12, 2020
  • 3 replies
  • 2521 views

I'm trying to debug some javascripting we are doing to help out art pipeline.

 

I'm using a startsWith() method that seems to work fine in a stand alone js test script run within VS Code, but the exact same lines seem to fail or error silently when called within Photoshop (a call to the script handled by the Script Event Manager). Running PS 21.0.3 20200115.r.91.

 

One of the working theories is that PS may have a different version of JS it ships with that accounts for different behavior.  If anyone can help me track down the JS version to help prove/disprove the theory, that would be grand.

{Thread renamed by moderator} 🙂

    This topic has been closed for replies.
    Correct answer Kukurykus

    2 months ago 20 years passed and we still use ECMAScript 3 (1999)

    3 replies

    L
    Lumigraphics
    Legend
    February 12, 2020

    $.about() shows the Extendscript About box

      Kukurykus
      KukurykusCorrect answer
      Legend
      February 12, 2020

      2 months ago 20 years passed and we still use ECMAScript 3 (1999)

        peter.nicolai.sf
        peter.nicolai.sfAuthor
        Participant
        February 12, 2020

        Ahhh. That might explain it.

         

        From what I can gather on-line startsWith() was introduced in or around ECMA6 and was still not supported by all browsers in 2009. If the Javascript PS supports pre-dates that by even further (an addt'l 10 yrs?!) then it is likley not supported.

         

        pete 

        Kukurykus
        Kukurykus
        Legend
        February 12, 2020

        You could implement:

        if (!String.prototype.startsWith) {
    Object.defineProperty(String.prototype, 'startsWith', {
        value: function(search, rawPos) {
            var pos = rawPos > 0 ? rawPos|0 : 0;
            return this.substring(pos, pos + search.length) === search;
        }
    });
}

         

        if not the fact first you had to implement defineProperty, and then other prototypes like call etc

        Sahil.Chawla
        Adobe Employee
        Sahil.Chawla
        Adobe Employee
        February 12, 2020

        Hi Peter,

        Not sure how to check the supported Javascript version in Photoshop, however, you may have a look at this article and see if it helps: https://www.adobe.com/devnet/photoshop/scripting.html

        Regards,
        Sahil

        peter.nicolai.sf
        peter.nicolai.sfAuthor
        Participant
        February 12, 2020

        Hey,

         

        thanks for the link. I've already been looking at those docs and unfortuantley can't find any ref to supported JavaScript versions.

         

        Pete

        Terms & ConditionsAccessibility statement
        Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices