jenkins-bot has submitted this change and it was merged. ( https://gerrit.wikimedia.org/r/378070 )
Change subject: mw.loader: Use Object.create() instead of $.extend() where possible ...................................................................... mw.loader: Use Object.create() instead of $.extend() where possible For cases where we want a variation of an object with some keys added or changed, use native Object.create() to create a plain object that inherits from the other object (without needing to loop and copy each key/value separately). This optimisation only works, of course, if the original object by-reference does not change later. Also remove hasOwn filter from sortQuery, because it must now consider inherited keys as well. This filter was already obsolete given mw.loader already has many unfiltered for-in loops in other places, and just in general doesn't support environments that extend Object.prototype. Change-Id: Ib405e32d4598dfb94629c2596ea0804d1c13e7c0 --- M resources/src/mediawiki/mediawiki.js 1 file changed, 8 insertions(+), 10 deletions(-) Approvals: Catrope: Looks good to me, approved jenkins-bot: Verified diff --git a/resources/src/mediawiki/mediawiki.js b/resources/src/mediawiki/mediawiki.js index 0ae45b5..b522486 100644 --- a/resources/src/mediawiki/mediawiki.js +++ b/resources/src/mediawiki/mediawiki.js @@ -1499,9 +1499,7 @@ a = []; for ( key in o ) { - if ( hasOwn.call( o, key ) ) { - a.push( key ); - } + a.push( key ); } a.sort(); for ( key = 0; key < a.length; key++ ) { @@ -1538,10 +1536,9 @@ * @param {string} sourceLoadScript URL of load.php */ function doRequest( moduleMap, currReqBase, sourceLoadScript ) { - var query = $.extend( - { modules: buildModulesString( moduleMap ) }, - currReqBase - ); + // Optimisation: Inherit (Object.create), not copy ($.extend) + var query = Object.create( currReqBase ); + query.modules = buildModulesString( moduleMap ); query = sortQuery( query ); addScript( sourceLoadScript + '?' + $.param( query ) ); } @@ -1630,9 +1627,10 @@ // modules for this group from this source. modules = splits[ source ][ group ]; - currReqBase = $.extend( { - version: getCombinedVersion( modules ) - }, reqBase ); + // Optimisation: Inherit (Object.create), not copy ($.extend) + currReqBase = Object.create( reqBase ); + currReqBase.version = getCombinedVersion( modules ); + // For user modules append a user name to the query string. if ( group === 'user' && mw.config.get( 'wgUserName' ) !== null ) { currReqBase.user = mw.config.get( 'wgUserName' ); -- To view, visit https://gerrit.wikimedia.org/r/378070 To unsubscribe, visit https://gerrit.wikimedia.org/r/settings Gerrit-MessageType: merged Gerrit-Change-Id: Ib405e32d4598dfb94629c2596ea0804d1c13e7c0 Gerrit-PatchSet: 5 Gerrit-Project: mediawiki/core Gerrit-Branch: master Gerrit-Owner: Krinkle <krinklem...@gmail.com> Gerrit-Reviewer: Bartosz DziewoĆski <matma....@gmail.com> Gerrit-Reviewer: Catrope <r...@wikimedia.org> Gerrit-Reviewer: Gilles <gdu...@wikimedia.org> Gerrit-Reviewer: Jack Phoenix <j...@countervandalism.net> Gerrit-Reviewer: Legoktm <lego...@member.fsf.org> Gerrit-Reviewer: Phedenskog <phedens...@wikimedia.org> Gerrit-Reviewer: jenkins-bot <> _______________________________________________ MediaWiki-commits mailing list MediaWiki-commits@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/mediawiki-commits