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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/format_specifications.rdoc | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/format_specifications.rdoc b/doc/format_specifications.rdoc index 7157220c08..e589524f27 100644 --- a/doc/format_specifications.rdoc +++ b/doc/format_specifications.rdoc @@ -336,3 +336,13 @@ Format +argument+ (<tt>'%'</tt>) as a single percent character: sprintf('%d %%', 100) # => "100 %" Flags do not apply. + +=== Reference by Name + +For more complex formatting, Ruby supports a reference by name. +%<name>s style uses format style, but %{name} style doesn't. + +Examples: + + sprintf("%<foo>d : %<bar>f", { :foo => 1, :bar => 2 }) # => 1 : 2.000000 + sprintf("%{foo}f", { :foo => 1 }) # => "1f" |