color of glyph

[srobb1]

Ok. this is probably a super easy one:

In Jbrowse 1, I want to color my canvas glyph blue if is of type mRNA and red otherwise, but they are all colored black. What have I done wrong with my javascript?

"color": "function(feature) { return feature.get('type')==='mRNA' ?'blue':'red'; }"

I see the example here and i modeled mine after it: https://jbrowse.org/docs/faq.html#how-do-i-customize-feature-colors-with-canvasfeatures

Thank you, Sofia

[cmdcolin]

can you check the javascript console to see if there are errors? black I think often means there is a syntax error

[srobb1]

The only one I have is one that is always there

Uncaught (in promise) Error: getTranslators: detection is already running
    at Zotero.Translate.Web.<anonymous> (translate.js:1112:45)
    at Zotero.Translate.Web.getTranslators (promise.js:36:17)
    at Object.init (inject.js:108:25)
    at Object.historyChanged (inject.js:692:21)
    at messageListener (messaging_inject.js:122:50)
    at messaging_inject.js:132:6

[srobb1]

I don't know. It is working now. I tried to get the console to print type and it would never print 'mRNA'. So i did this instead, and it is working. console will print out tRNA and rRNA. I am not sure what is up with my type 'mRNA'. The info box clearly says mRNA and if I get the label to print type, I see mRNA. Oh well. I have what I need.

    "color": "function(feature) { type=feature.get('type');if (type.indexOf('rRNA')==0){return 'coral'}else if(type.indexOf('tRNA')==0){return 'green'}else{ return 'orange' }}",

[cmdcolin]

nice :) chrome often aggressively caches the trackList.json files so need to do full clear cache to see the updates to trackList.json sometimes. small faq entry about things i've run into

[cmdcolin]

https://jbrowse.org/docs/faq.html#i-set-a-value-in-my-config-file-but-it-isn-t-working-why-not

[srobb1]

Thanks!