How do you use regular expressions to tell you to take the value inside those brackets = #,?

Question

Regular Expressions

I have this line.

let x = "COTiynkTfM&Length=1000251jink56516156#Finti:Ginjoko";

How to use regular expressions to tell you to take the value inside these brackets = # .
It follows from this that the value should be: 1000251jink56516156. and inside =" these brackets can be any value.

Answer 1

let x = "COTiynkTfM & Length = 1000251jink56516156" Finti: Ginjoko ";

this is some kind of wrong string, quotes are unpaired