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Commitb40a480

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Attributes: Shave off a couple of bytes
The `attrHooks` entries for boolean attributes are only defined for jQuery 4+;jQuery 3.x used a separate mechanism - assigning them to`jQuery.expr.attrHandle`. That object used to be maintained by Sizzle, sincejQuery 3.7.0 it's kept in the selector module. Because of that, the `isXMLDoc`check used to be require in this hook.Now that standard `attrHooks` are used, the `isXMLDoc` check already happensinside of `jQuery.attr` and there's no need to repeat it in the test. Note thatthis repetition is even incorrect - while Sizzle's `jQuery.find.attr` used totreat an `undefined` output of the hooks from `jQuery.expr.attrHandle` as a wayto opt out of the hook, jQuery's `attrHooks` use `null` to opt out of a getterhook.Apart from the size, this patch also avoids unnecessary extra checks.Closesgh-5398
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‎src/attributes/attr.js

Lines changed: 3 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -108,16 +108,9 @@ jQuery.each( (
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).split(" "),function(_i,name){
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jQuery.attrHooks[name]={
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get:function(elem){
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varret,
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isXML=jQuery.isXMLDoc(elem),
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lowercaseName=name.toLowerCase();
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if(!isXML){
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ret=elem.getAttribute(name)!=null ?
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lowercaseName :
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null;
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}
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returnret;
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returnelem.getAttribute(name)!=null ?
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name.toLowerCase() :
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null;
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},
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set:function(elem,value,name){

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