javascript regular expression assign everything after underscore to a variable

Hello!

I'm trying to create a super simple regular expression! I just want to assign to a variable everything after an underscore. it will be a counter- number, then and underscore then a fedex or ups tracking code.

var linkId = 3_1Z6656460348661915;

//incomprehensible regular expression magic 

var trackingNumber = 1Z6656460348661915;

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I'm grateful for any help! Thanks!
hibbsusanAsked:
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käµfm³d 👽Commented:
Try:

var trackingNumber = /_(.*)/[1];

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leakim971PluritechnicianCommented:
var linkId = 3_1Z6656460348661915;
var trackingNumber = linkId.split("_")[0]; // faster than regex
//or with a regex
//var trackingNumber = linkId.match(/_(.*)/)[1]; // kaufmed's illustration ?

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hibbsusanAuthor Commented:
thanks!
0
leakim971PluritechnicianCommented:
you're welcome!

var linkId = 3_1Z6656460348661915;
var trackingNumber = linkId.split("_")[1]; // ^_^

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Regular Expressions

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