Makes it easier to access parts of a string, such as specific characters and substrings.
Returns the character at the position treating the string as an array (where 0 is the first character).
Examples:
"hello".at(0) # => "h" "hello".at(4) # => "o" "hello".at(10) # => nil
# File lib/active_support/core_ext/string/access.rb, line 13 def at(position) mb_chars[position, 1].to_s end
Returns the first character of the string or the first limit characters.
Examples:
"hello".first # => "h" "hello".first(2) # => "he" "hello".first(10) # => "hello"
# File lib/active_support/core_ext/string/access.rb, line 43 def first(limit = 1) if limit == 0 '' elsif limit >= size self else mb_chars[0...limit].to_s end end
Returns the remaining of the string from the position treating the string as an array (where 0 is the first character).
Examples:
"hello".from(0) # => "hello" "hello".from(2) # => "llo" "hello".from(10) # => nil
# File lib/active_support/core_ext/string/access.rb, line 23 def from(position) mb_chars[position..-1].to_s end
Returns the last character of the string or the last limit characters.
Examples:
"hello".last # => "o" "hello".last(2) # => "lo" "hello".last(10) # => "hello"
# File lib/active_support/core_ext/string/access.rb, line 59 def last(limit = 1) if limit == 0 '' elsif limit >= size self else mb_chars[(-limit)..-1].to_s end end
Returns the beginning of the string up to the position treating the string as an array (where 0 is the first character).
Examples:
"hello".to(0) # => "h" "hello".to(2) # => "hel" "hello".to(10) # => "hello"
# File lib/active_support/core_ext/string/access.rb, line 33 def to(position) mb_chars[0..position].to_s end
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