regex to match a number followed by spaces

Question

I'm looking to use reg-ex to split the following string

1 hi my name is John. 2 I live at house 32. 3 I see stars.

to

[hi my name is John,  I live at house 32. , I see stars]

Note that am trying to split on digit followed by a space

Answer 1

Split on /(^|\\b\\s+)\\d+\\s+/g .

Explanation:

• (^|\\b\\s+) A collection of either ^ or \\b\\s+ )
  • ^ Start of the string OR
  • \\b\\s+ a word boundary followed by a space/tab repeated 1 or more times
• \\d+ A digit between 0 and 9 repeated 1 or more times (so it'd match 1, 12, 123, etc.)
• \\s+ A space/tab repeated 1 or more times

Edit :

(^|\\.\\s+)\\d+\\s+ might work better for you.

Answer 2

也许这样做： [0-9]{1}[\\ ]

Answer 3

Split on:

/\d+ /

Only the first match will be empty because it's the match just before the first number: 1 , so you gotta ignore that one.