Split String using multiple Selectors

Question

I have below string :

var deptInfo = \"Flight-1 08:30~Flight-1 10:45|Flight-2 15:15~Flight-2 17:30\"

I want to have info in the format:

Answer 1

You may use the following pattern to extract the necessary bits and then post-process the matches to get the necessary output:

/(\d{2}:\d{2})~Flight-\d+\s*(\d{2}:\d{2})/g

See the regex demo. Note you may even wrap the pattern with \b (word boundaries) if you want to make sure the first and last 2 digits are not preceded/followed with a word char, /\b(\d{2}:\d{2})~Flight-\d+\s*(\d{2}:\d{2})\b/g.

Details

• (\d{2}:\d{2}) - Group 1: 2 digits, :, 2 digits
• ~Flight-\d+ - a ~Flight- substring and then 1+ digits
• \s* - 0+ whitespaces
• (\d{2}:\d{2}) - Group 2: 2 digits, :, 2 digits

JS usage:

var rx = /(\d{2}:\d{2})~Flight-\d+\s*(\d{2}:\d{2})/g;
var s = "Flight-1 08:30~Flight-1 10:45|Flight-2 15:15~Flight-2 17:30";
var m, res = [];
while (m = rx.exec(s)) {
    res.push(m[1] + "-" + m[2]);
} 
console.log(res);