如何添加 | 在字符串中每隔一个数字之后

Question

Is there a regular expression to add this | symbol after every second number in string.

Have tried split join, filtering the string but with no luck

let str1 = "Plymouth Belvedere 1968,1969 Plymouth GTX 1968,1969 Plymouth Road Runner 1968,1969 Plymouth Satellite 1968,1969"

Results should be

Plymouth Belvedere 1968,1969|Plymouth GTX 1968,1969|Plymouth Road Runner 1968,1969|Plymouth Satellite 1968,1969|

Answer 1

You could look for decimals with comma and replace it with a pipe.

 let string = "Plymouth Belvedere 1968,1969 Plymouth GTX 1968,1969 Plymouth Road Runner 1968,1969 Plymouth Satellite 1968,1969", result = string.replace(/\d+,\d+/g, '$&|'); console.log(result);

Answer 2

You can use replace

\D*\d+\D*\d+

 let str = "Plymouth Belvedere 1968,1969 Plymouth GTX 1968,1969 Plymouth Road Runner 1968,1969 Plymouth Satellite 1968,1969" let final = str.replace(/\D*\d+\D*\d+/g, "$&|") console.log(final)

Answer 3

let str1 = "Plymouth Belvedere 1968,1969 Plymouth GTX 1968,1969 Plymouth Road Runner 1968,1969 Plymouth Satellite 1968,1969";

let str2 = str1.replace(/\d+,\d+/g, "$&|");
str2 = str1.replace("| ", "|");

The first replace replaces numbers with the same numbers followed by a | . The second replace removes the spaces after |.

For the regular expression /\d+,\d+/g , \d matches all numbers, + means that there is at least 1 digit but there can be more, , is for the comma that you have between the numbers, g ensures that it iterates through the whole string, and $& reinserts the matched string.

Answer 4

So the pattern you want to match is 4 numbers comma 4 numbers

 let str1 = "Plymouth Belvedere 1968,1969 Plymouth GTX 1968,1969 Plymouth Road Runner 1968,1969 Plymouth Satellite 1968,1969" var res = str1.replace(/(\d{4},\d{4})/g, '$1|') console.log(res)