正则表达式 - 括号内的特定文本

Question

I am writing a node.js app that does scraping. I need to select from a string:

[
  [17,"EUR",17.03,"False",""],
  [20,"EUR",20.04,"False",""],
  [23,"EUR",23.05,"False",""]
],
[
  [1500,"RUB",1524.2,"False",""],
  [1800,"RUB",1793.9,"False",""],
  [2100,"RUB",2062.99,"False",""]
]

only [..."EUR"...] arrays but I am confused with regexp.

Tried \[(\\bEUR)?\] and similar ones. How I should correct it? Thanks

UPD: to be more specific - return

[20,"EUR",20.04,"False",""]

not

[2100,"RUB",2062.99,"False",""]

and there are many confusing [] brackets

Answer 1

I'd rather use Array.filter instead of using RegEx. It will be more straightforward and easily understandable to use just that.

EDIT: Since currencies are grouped together, you may check just the first array:

Array.filter(x => x[0].includes("EUR"));

Answer 2

You can use filter and some :

 const bla = [ [17, "EUR", 17.03, "False", ""], [20, "EUR", 20.04, "False", ""], [23, "EUR", 23.05, "False", ""], [1500, "RUB", 1524.2, "False", ""], [1800, "RUB", 1793.9, "False", ""], [2100, "RUB", 2062.99, "False", ""], ]; const out = bla.filter(el => el.some(nEl => nEl === 'EUR')); console.log(out);