Gadget-breadcrumbs.js

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$(document).ready(function() {
	
	/*$("#alertbutton-domino").click(function(){
		mw.messages.set({'sandbox-test': 'Testing'});
		var wiki_sandbox_obj = new mw.Message( mw.messages, 'sandbox-test' );
		mw.log( wiki_sandbox_obj.text() );
		mw.notify( mw.message( 'sandbox-test' ) );
	});*/
	
	var guide_va_edit_button = '<li id="ca-ve-edit"><a href="/wiki/index.php?title=Mall_(Survival_4)&amp;veaction=edit" title="Edit this page [Alt+Shift+v]" accesskey="v">Edit</a></li>';
	$(".ns-3002 #ca-edit").before(guide_va_edit_button);
		
});

MediaWiki

Gadget-breadcrumbs.js