Method: String#insert

Defined in:
string.c

#insert(index, other_str) ⇒ String

Inserts other_str before the character at the given index, modifying str. Negative indices count from the end of the string, and insert after the given character. The intent is insert aString so that it starts at the given index.

"abcd".insert(0, 'X')    #=> "Xabcd"
"abcd".insert(3, 'X')    #=> "abcXd"
"abcd".insert(4, 'X')    #=> "abcdX"
"abcd".insert(-3, 'X')   #=> "abXcd"
"abcd".insert(-1, 'X')   #=> "abcdX"

Returns:



1841
1842
1843
 
# File 'string.c', line 1841

static VALUE
rb_str_insert(str, idx, str2)
VALUE str, idx, str2;