Module:If preview/doc
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This is the documentation page for Module:If preview
 | This Lua module is used on approximately 445,000 pages, or roughly 42021% of all pages. To avoid major disruption and server load, any changes should be tested in the module's /sandbox or /testcases subpages, or in your own module sandbox. The tested changes can be added to this page in a single edit. Consider discussing changes on the talk page before implementing them. |
 | This module depends on the following other modules: |
Lua error in Module:TNT at line 159: Missing JsonConfig extension; Cannot load https://commons.wikimedia.org/wiki/Data:I18n/Uses TemplateStyles.tab.
This module implements {{if preview}} and {{preview warning}}. It helps templates/modules determine if they are being previewed.
Prefer implementing the template versions in other templates.
In a module to use the main(), you need to pass a frame table with an args table.
For the preview warning, use _warning().