How to pad a string?

Working with Data
#1

How to pad a string with leading zeros of a fixed length. in regex expression for mongoDB native query.
For example, for length of 4:

‘12’ → ‘0012’
‘123’ → ‘0123’
‘1234’ → ‘1234’

#2

I wrote a blog post a while back showing how to do it:

Asya

3 Likes
#3

thank you very much!!! It works well.

1 Like
#4

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