如何在 VS Code 中使用正则表达式

Question

I have a question about regular expressions. I'm using VS Code and trying to search and replace € (price).

I have a JSON file and in that file a have price like this: "price": 120.000 € a trying to remove € so everything should look like this: "price": 120.000 Please help, thank you all.

Answer 1

("price"\\s?:\\s?"(?:\\d+\\.?)+)(\\s?€)" to be replaced by $1"

$1 is the first captured group. In that RegEx, this is : ("price"\\s?:\\s?"(?:\\d+\\.?)+)

• 1st Capturing Group ("price"\\s?:\\s?"(?:\\d+\\.?)+) :

-> "price" matches the characters "price" literally (case sensitive)

-> \\s matches any whitespace character (equal to [\\r\\n\\t\\f\\v ] )

--> ? Quantifier — Matches between zero and one times, as many times as possible, giving back as needed (greedy)

-> : matches the character : literally (case sensitive)

-> \\s matches any whitespace character (equal to [\\r\\n\\t\\f\\v ] )

--> ? Quantifier — Matches between zero and one times, as many times as possible, giving back as needed (greedy)

-> " matches the character " literally (case sensitive)

• Non-capturing group (?:\\d+\\.?)+

-> + Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)

--> \\d+ matches a digit (equal to [0-9] )

--> \\.? matches the character . literally (case sensitive)

• 2nd Capturing Group (\\s?€)

-> \\s matches any whitespace character (equal to [\\r\\n\\t\\f\\v ] )

--> ? Quantifier — Matches between zero and one times, as many times as possible, giving back as needed (greedy)

-> € matches the character € literally (case sensitive)

-> " matches the character " literally (case sensitive)

This will be replaced by $1" which is the first captured group followed by "

Test it yourself