How to get a substring of text

Question

I have text with length  700  How do I get only  30 of its first characters

User · Answer

if you need it in rails you can use first  source code    1234567890  first 5      gt   12345    there is also last  source code    1234567890  last 2      gt   90    alternatively check from to  source code     hello  from 1  to -2      gt   ell

User · Answer

If you have your text in your text variable  you can use   your text 0  29

User · Answer

Use String slice  also aliased as     a    quot hello there quot  a 1                       gt   quot e quot  a 1 3                     gt   quot ell quot  a 1  3                    gt   quot ell quot  a 6  -1                   gt   quot there quot  a 6                       gt   quot there quot   requires Ruby 2 6   a -3 2                    gt   quot er quot  a -4  -2                  gt   quot her quot  a 12  -1                  gt  nil a -2  -4                  gt   quot  quot  a   aeiou     1           gt   quot ell quot  a   aeiou     1   0       gt   quot ell quot  a   aeiou     1   1       gt   quot l quot  a   aeiou     1   2       gt  nil a  quot lo quot                     gt   quot lo quot  a  quot bye quot                    gt  nil

User · Answer

If you want a string  then the other answers are fine  but if what you re looking for is the first few letters as characters you can access them as a list   your text chars take 30

User · Answer

Since you tagged it Rails  you can use truncate   http   api rubyonrails org classes ActionView Helpers TextHelper html method-i-truncate  Example    truncate  text   length   gt  17    Excerpt is nice to know too  it lets you display an excerpt of a text Like so    excerpt  This is an example    an    radius   gt  5       gt     s is an exam      http   api rubyonrails org classes ActionView Helpers TextHelper html method-i-excerpt

[ruby] How to get a substring of text?

Examples related to ruby