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What ancient version of javascript is this?

Participant ,
Sep 24, 2024 Sep 24, 2024

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I got the error:

Map does not have a constructor on this simple line:

copyMap = new Map();


Isnt map included since 10 years or so? id i do something wrong or do I really have to implement is myself?

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Bug , Scripting , SDK

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correct answers 1 Correct answer

Community Expert , Sep 24, 2024 Sep 24, 2024

Adobe's ExtendScript is based on ECMAScript 3, from 1999. 

 

 

 

 

 

 

 

 

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Community Expert ,
Sep 24, 2024 Sep 24, 2024

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Hi @Lordrhavin , there’s no map object or maps collection. There are collections\objects like ObjectStyleExportTagMaps, StyleExportTagMaps, XMLExportMap, etc. Maybe some context would help, or you can search the API here:

https://www.indesignjs.de/extendscriptAPI/indesign-latest/#Application.html

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Community Expert ,
Sep 24, 2024 Sep 24, 2024

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Adobe's ExtendScript is based on ECMAScript 3, from 1999. 

 

 

 

 

 

 

 

 

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Community Expert ,
Sep 26, 2024 Sep 26, 2024

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I'm not sure how I managed to delete my mention of polyfills before hitting "Post." But no, I've found that we typically don't have to actually reimplement this kind of stuff ourselves. Someone else has most likely already done so - usually some years ago, in the name of maintaining backwards compatibility for older web browsers. Every single time I've thoughtlessly used something like map or indexOf, I've been able to find a perfectly functional polyfill in a few clicks. 

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Community Expert ,
Sep 27, 2024 Sep 27, 2024

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But no, I've found that we typically don't have to actually reimplement this kind of stuff ourselves.

 

https://community.adobe.com/t5/indesign-discussions/copying-page-content/td-p/14882538

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Community Expert ,
Sep 24, 2024 Sep 24, 2024

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You could also try UXP scripting. It's a bit more modern (uses Javascript 6) but still isn't quite at API parity with the old ExtendScript which most scripts are still written in.

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