Template:Diff

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This template is intended to be useful for creating links to "diffs"; that is, links to pages that show the differences between two versions of a wiki page.

Every version of a page has a revision ID, which you can find from the history of the page by looking at the timestamp link for the edit. The timestamp link is in this form:
http[s]://en.wikipedia.org/w/index.php?title=SomePageName&oldid=442212827
The number after oldid= is the revision ID.

Given one or two revision IDs, you can construct links to several types of diffs.

Usage

{{Diff|title|diff|oldid|label|diffonly=yes}}
  • title – The title of the page (optional in most cases).
  • diff – The ID or keyword that is used against the base ID. Possible keywords are:
    cur – compare with the current version of a page.
    prev – compare with the previous version of a page.
    next – compare with the next version of a page.
    id – This should be larger than oldid.
  • oldid – The base ID onto which the diff is generated.
  • label – Text to display as link (optional)‍—‌no label will generate a numbered link as the label.
  • |diffonly=yes – Displays the page comparisons only (optional)‍—‌parameter name required if used.

Only the diff parameter is required; all other parameters are optional. Omitted parameters must be empty (by using a double pipe). You can also use the named parameters title, diff, oldid, and label.

Examples

Below each example in the left-hand column is the pseudocode for that example in brown italics and indented. Elements that should be entered literally are in brown bold underlined italics. When a parameter is left blank, the resulting two adjacent pipes are underlined (but not bolded): ||.

Code Output
{{Diff|Main Page|prev|204901573|Diff between a numbered version and the previous version}}
{{Diff|page|prev|oldid|label}}
 Diff between a numbered version and the previous version

This is the form that would be used most often.

  • The diff= parameter (parameter number 2) should be the word prev.
  • The oldid= parameter (parameter number 3) should be the known revision number.
{{Diff|Foobar|616706711|616706707|Diff between two numbered versions of a page}}
{{Diff|page title|diff|oldid|label}}
 Diff between two numbered versions of a page
  • The title= parameter (parameter number 1) should be a name of a page, for instance Foobar.
  • The diff= parameter (parameter number 2) should be the larger revision number.
  • The oldid= parameter (parameter number 3) should be the smaller revision number.
{{Diff||616706711|616706707|Diff between two numbered versions of a page without title parameter}}
{{Diff||diff|oldid|label}}
 Diff between two numbered versions of a page without title parameter
  • The title= parameter (parameter number 1) may be left blank, thereby leaving a double pipe.
  • The diff= parameter (parameter number 2) should be the larger revision number.
  • The oldid= parameter (parameter number 3) should be the smaller revision number.
{{Diff|Wikipedia:Pagediff|204934693|204901573|Diff between two numbered versions of a page in Wikipedia namespace}}
{{Diff|page|diff|oldid|label}}
 Diff between two numbered versions of a page in Wikipedia namespace
  • The title= parameter (parameter number 1) should be a name of a page, for instance Wikipedia:Pagediff.
  • The diff= parameter (parameter number 2) should be the page revision to appear on the right (proposed change).
  • The oldid= parameter (parameter number 3) should be the page revision to appear on the left (original).
{{Diff|Main Page|next|204901573|Diff between a numbered version and the subsequent version}}
{{Diff|page|next|oldid|label}}
 Diff between a numbered version and the subsequent version
  • The diff= parameter (parameter number 2) should be the word next.
  • The oldid= parameter (parameter number 3) should be the known revision number.
{{Diff|Main Page|cur|204901573|Diff between a numbered version and the current version of a page}}
{{Diff|page|cur|oldid|label}}
 Diff between a numbered version and the current version of a page
  • The diff= parameter (parameter number 2) should be the word cur.
  • The oldid= parameter (parameter number 3) should be the known revision number.
{{Diff|Main Page|cur||Diff showing the most recent change to a page}}
{{Diff|page|cur||label}}
 Diff showing the most recent change to a page
  • The diff= parameter (parameter number 2) should be the word cur.
  • The oldid= parameter (parameter number 3) should be empty.
{{Diff|Main Page||204901573|A link to a numbered version of a page}}
{{Diff|page||oldid|label}}
 A link to a numbered version of a page
  • The diff= parameter (parameter number 2) should be empty.
  • The oldid= parameter (parameter number 3) should be the known revision number.
  • The result is not actually a diff, so this might be considered misuse of the template. See the {{oldid}} template.
{{Diff|Main Page|204901573|202506579|Comparison display without page display of two numbered versions of a page |diffonly=yes}}
{{Diff|page|diff|oldid|label|diffonly=yes}}
 Comparison display without page display of two numbered versions of a page
  • The title= parameter (parameter number 1) should be a name of a page, for instance Main Page.
  • The diff= parameter (parameter number 2) should be the larger revision number.
  • The oldid= parameter (parameter number 3) should be the smaller revision number.
  • The diffonly= parameter, which must include the parameter name, can only be set to yes

TemplateData

This is the TemplateData documentation for this template used by VisualEditor and other tools; see the monthly error report for this template.

TemplateData for Diff

Syntax error in JSON.

See also

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