javascript - How to get values from dataLayer object -


i want values datalayer object of google tag manager. in chrome tag assistance getting values this

[   {     "gtm.start": 1503053374849,     "event": "gtm.js",     "gtm.uniqueeventid": 0   },   {     "event": "gtm.dom",     "gtm.uniqueeventid": 1   },   {     "event": "gtm.load",     "gtm.uniqueeventid": 2   },   {     "linker": "_ga=53655374"   } ]

i need "linker" value. tried datalayer[3].linker gives me "undefined" or blank same datalayer[1].event (it's blank not return value = "gtm.dom") when try datalayer[0].event it's return correct 'gtm.js'

please me how "linker" value

the best way use google tag manager itself, that's it's designed for. this, go gtm interface (tagmanager.google.com) , create variable of type datalayer. can use variable in tag of choosing pass value 3rd party system.


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