Regular expression for getting number

Question

I have string as:-

String -----> Result I need
 
1.25 acres ---> 1.25
125 acres ----> 125 
1,25 sqft ----> 125 
12,5 foot ----> 125

I am currently using :- .match(/\d+(\.\d+)?/) but it is getting 1 for 1,25 and 12 for 12,5

Any suggestion?

Answer 1

You could also remove the first , you encounter and then use parseFloat . Something like this:

parseFloat(str.replace(",",""))

Answer 2

Use

str.match(/\d+(?:[.,]\d+)*/g)

See regex proof .

EXPLANATION

NODE                     EXPLANATION
--------------------------------------------------------------------------------
  \d+                      digits (0-9) (1 or more times (matching
                           the most amount possible))
--------------------------------------------------------------------------------
  (?:                      group, but do not capture (0 or more times
                           (matching the most amount possible)):
--------------------------------------------------------------------------------
    [.,]                     any character of: '.', ','
--------------------------------------------------------------------------------
    \d+                      digits (0-9) (1 or more times (matching
                             the most amount possible))
--------------------------------------------------------------------------------
  )*                       end of grouping

JavaScript code snippet :

 const str = `1.25 acres 125 acres 1,25 sqft 12,5 foot` console.log(str.match(/\d+(?:[.,]\d+)*/g))