Manual:$wgLegacyJavaScriptGlobals/de-formal

<translate> ResourceLoader</translate>: $wgLegacyJavaScriptGlobals
Whether or not to assign configuration variables to the global window object.
<translate> Introduced in version:</translate>	1.18.0 (r87856)
<translate> Deprecated in version:</translate>	1.35.0 (Gerrit change 618030; git #0b23e103)
<translate> Removed in version:</translate>	1.37.0 (Gerrit change 678716; git #99d4ad59)
<translate> Allowed values:</translate>	(boolean)
<translate> Default value:</translate>	false (1.35-1.36) true (1.18-1.34)
<translate> Other settings:</translate> <translate> Alphabetical</translate> | <translate> By function</translate>

Details

Whether or not to assign configuration variables to the global window object.

If this is set to false, old code using deprecated variables like:

if ( window.wgRestrictionEdit ) ...

or:

if ( wgIsArticle ) ...

will no longer work and needs to use mw.config instead. For example:

if ( mw.config.exists('wgRestrictionEdit') )

or:

if ( mw.config.get('wgIsArticle') )