Шаблон:para

|{{{1}}}={{{2}}}

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Usage

This template simply displays a parameter name between a vertical line and an equal sign, as is seen in template calls. (This is useful in template documentation and in talk page discussions of templates.)

To display a parameter name surrounded by {{{triple-braces}}} (as would appear in template code), use {{paramref}}.

Parameters

This template takes the following parameters:

• |1= (may be empty if second parameter is present): the name of the parameter
• |2= (optional if first parameter is present): a corresponding value for the parameter
• |3= (optional): additional usage text
• |req=1: indicate that the parameter is required
• |opt=1: indicate that the parameter is optional

Examples

1. {{para|name}}

   Result: |name=

2. {{para|name|req=1}}

   Result: |name= (required)

3. {{para|name|opt=1}}

   Result: |name= (optional)

4. {{para|opt|1}}

   Result: |opt=1

5. {{para|title|<var>book title</var>}}

   Result: |title=book title

6. {{para||section}}

   Result: |section. This is useful for referring to values of unnamed parameters; note the empty first parameter in the template call.

7. {{para|<var>parameter</var>|<var>value</var>}}

   Result: |parameter=value

8. {{para|foo|=}}

   Result: |=foo

9. {{para|2||''optional'' if first parameter is present}}

   Result: |2= (optional if first parameter is present)

When using literal, pre-specified values, simply provide the value (appearance as in example 6). When illustrating hypothetical, variable or user-definable values, use <var>value</var> (appearance as in example 5), and the same should be done for non-literal, example parameters (as in example 7).