MediaWiki:Common.js

Note: After publishing, you may have to bypass your browser's cache to see the changes.

• Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
• Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
• Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5.

/* Any JavaScript here will be loaded for all users on every page load. */
mw.hook( 'wikipage.editform' ).add( function () {
    mw.loader.using( 'mediawiki.toolbar' ).then( function () {
        mw.toolbar.addButton( {
            imageFile: '//upload.wikimedia.org/wikipedia/commons/e/ea/Button_align_center.png',
            speedTip: 'Center text',
            tagOpen: '<div style="text-align: center;">',
            tagClose: '</div>',
            sampleText: 'Centered text',
            imageId: 'button-center'
        } );
    } );
} );