How to get range value from string using RegEx on Javascript

Question

I want to get range values using RegEx on Javascript so that when I use .match it would return the values. I've use - or ~ as range operator.

My current regex is /(\-?\d+)(?:\-|\~)(\-?\d+)/ but this will not return the number with decimal value.

Successful get:

• "5-10" should return ["5-10", "5", "10"]
• "-5-10" should return ["-5-10", "-5", "10"]
• "-5--10" should return ["-5-10", "-5", "-10"]

Failed to get:

• "5.1-10" should return ["5.1-10", "5.1", "10"]
• "-5.1-10" should return ["-5.1-10", "-5.1", "10"]
• "-5.1--10" should return ["-5.1-10", "-5.1", "-10"]
• "-5.1--10.2" should return ["-5.1-10", "-5.1", "-10.2"]

Answer 1

/^(-?\d+\.?\d*?)[-~](-?\d+\.?\d*?)$/

You need to capture the first digit which may have negative sign - and decimal with digit .digit. Then separate by either hyphen - or tilde ~, finally capture the second digit with the same manner as the first one.