Update readme to prepare for 1.12 release

Bumps [golang.org/x/net](https://github.com/golang/net) from 0.50.0 to 0.52.0.
- [Commits](https://github.com/golang/net/compare/v0.50.0...v0.52.0)

---
updated-dependencies:
- dependency-name: golang.org/x/net
  dependency-version: 0.52.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/test.yml

@@ -8,16 +8,16 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.21.x, 1.22.x]
+        go-version: [1.25.x, 1.26.x]
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: ${{ matrix.go-version }}
 

README.md

@@ -22,7 +22,15 @@ Syntax-wise, it is as close as possible to jQuery, with the same function names
 
 ## Installation
 
-Please note that starting with version `v1.9.0` of goquery, Go 1.18+ is required due to the use of generics. For previous goquery versions, a Go version of 1.1+ was required because of the `net/html` dependency. Ongoing goquery development is tested on the latest 2 versions of Go.
+Required Go version:
+
+* Starting with version `v1.12.0` of goquery, Go 1.25+ is required due to its dependencies.
+* Starting with version `v1.11.0` of goquery, Go 1.24+ is required due to its dependencies.
+* Starting with version `v1.10.0` of goquery, Go 1.23+ is required due to the use of function-based iterators.
+* For `v1.9.0` of goquery, Go 1.18+ is required due to the use of generics.
+* For previous goquery versions, a Go version of 1.1+ was required because of the `net/html` dependency.
+
+Ongoing goquery development is tested on the latest 2 versions of Go.
 
     $ go get github.com/PuerkitoBio/goquery
 
@@ -40,6 +48,12 @@ Please note that starting with version `v1.9.0` of goquery, Go 1.18+ is required
 
 **Note that goquery's API is now stable, and will not break.**
 
+*    **2026-03-15 (v1.12.0)** : Update `go.mod` dependencies, add go1.26 to the test matrix, **goquery now requires Go version 1.25+**.
+*    **2025-11-16 (v1.11.0)** : Update `go.mod` dependencies, add go1.25 to the test matrix, **goquery now requires Go version 1.24+**.
+*    **2025-04-11 (v1.10.3)** : Update `go.mod` dependencies, small optimization (thanks [@myxzlpltk](https://github.com/myxzlpltk)).
+*    **2025-02-13 (v1.10.2)** : Update `go.mod` dependencies, add go1.24 to the test matrix.
+*    **2024-12-26 (v1.10.1)** : Update `go.mod` dependencies.
+*    **2024-09-06 (v1.10.0)** : Add `EachIter` which provides an iterator that can be used in `for..range` loops on the `*Selection` object. **goquery now requires Go version 1.23+** (thanks [@amikai](https://github.com/amikai)).
 *    **2024-09-06 (v1.9.3)** : Update `go.mod` dependencies.
 *    **2024-04-29 (v1.9.2)** : Update `go.mod` dependencies.
 *    **2024-02-29 (v1.9.1)** : Improve allocation and performance of the `Map` function and `Selection.Map` method, better document the cascadia differences (thanks [@jwilsson](https://github.com/jwilsson)).

bench_example_test.go

@@ -1,15 +1,15 @@
 package goquery
 
 import (
-	"bytes"
 	"fmt"
 	"strconv"
+	"strings"
 	"testing"
 )
 
 func BenchmarkMetalReviewExample(b *testing.B) {
 	var n int
-	var buf bytes.Buffer
+	var builder strings.Builder
 
 	b.StopTimer()
 	doc := loadDoc("metalreview.html")
@@ -27,12 +27,12 @@ func BenchmarkMetalReviewExample(b *testing.B) {
 			if score, e = strconv.ParseFloat(s.Find(".score").Text(), 64); e != nil {
 				// Not a valid float, ignore score
 				if n <= 4 {
-					buf.WriteString(fmt.Sprintf("Review %d: %s - %s.\n", i, band, title))
+					builder.WriteString(fmt.Sprintf("Review %d: %s - %s.\n", i, band, title))
 				}
 			} else {
 				// Print all, including score
 				if n <= 4 {
-					buf.WriteString(fmt.Sprintf("Review %d: %s - %s (%2.1f).\n", i, band, title, score))
+					builder.WriteString(fmt.Sprintf("Review %d: %s - %s (%2.1f).\n", i, band, title, score))
 				}
 			}
 		})

bench_iteration_test.go

@@ -25,6 +25,48 @@ func BenchmarkEach(b *testing.B) {
 	}
 }
 
+func BenchmarkEachIter(b *testing.B) {
+	var tmp, n int
+
+	b.StopTimer()
+	sel := DocW().Find("td")
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		for range sel.EachIter() {
+			tmp++
+		}
+		if n == 0 {
+			n = tmp
+		}
+	}
+	if n != 59 {
+		b.Fatalf("want 59, got %d", n)
+	}
+}
+
+func BenchmarkEachIterWithBreak(b *testing.B) {
+	var tmp, n int
+
+	b.StopTimer()
+	sel := DocW().Find("td")
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		tmp = 0
+		for range sel.EachIter() {
+			tmp++
+			if tmp >= 10 {
+				break
+			}
+		}
+		if n == 0 {
+			n = tmp
+		}
+	}
+	if n != 10 {
+		b.Fatalf("want 10, got %d", n)
+	}
+}
+
 func BenchmarkMap(b *testing.B) {
 	var tmp, n int
 

go.mod

@@ -1,8 +1,8 @@
 module github.com/PuerkitoBio/goquery
 
 require (
-	github.com/andybalholm/cascadia v1.3.2
-	golang.org/x/net v0.29.0
+	github.com/andybalholm/cascadia v1.3.3
+	golang.org/x/net v0.52.0
 )
 
-go 1.18
+go 1.25.0

go.sum

@@ -1,38 +1,69 @@
-github.com/andybalholm/cascadia v1.3.2 h1:3Xi6Dw5lHF15JtdcmAHD3i1+T8plmv7BQ/nsViSLyss=
-github.com/andybalholm/cascadia v1.3.2/go.mod h1:7gtRlve5FxPPgIgX36uWBX58OdBsSS6lUvCFb+h7KvU=
+github.com/andybalholm/cascadia v1.3.3 h1:AG2YHrzJIm4BZ19iwJ/DAua6Btl3IwJX+VI4kktS1LM=
+github.com/andybalholm/cascadia v1.3.3/go.mod h1:xNd9bqTn98Ln4DwST8/nG+H0yuB8Hmgu1YHNnWw0GeA=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
+golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
+golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
+golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
+golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
+golang.org/x/mod v0.15.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.9.0/go.mod h1:d48xBJpPfHeWQsugry2m+kC02ZBRGRgulfHnEXEuWns=
-golang.org/x/net v0.29.0 h1:5ORfpBpCs4HzDYoodCDBbwHzdR5UrLBZ3sOnUJmFoHo=
-golang.org/x/net v0.29.0/go.mod h1:gLkgy8jTGERgjzMic6DS9+SP0ajcu6Xu3Orq/SpETg0=
+golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
+golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
+golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
+golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
+golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=
+golang.org/x/net v0.52.0 h1:He/TN1l0e4mmR3QqHMT2Xab3Aj3L9qjbhRm78/6jrW0=
+golang.org/x/net v0.52.0/go.mod h1:R1MAz7uMZxVMualyPXb+VaqGSa3LIaUqk0eEt3w36Sw=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
+golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sync v0.10.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
-golang.org/x/term v0.7.0/go.mod h1:P32HKFT3hSsZrRxla30E9HqToFYAQPCMs/zFMBUFqPY=
+golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
+golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
+golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
+golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY=
+golang.org/x/term v0.27.0/go.mod h1:iMsnZpn0cago0GOrHO2+Y7u7JPn5AylBrcoWkElMTSM=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
+golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
+golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

iteration.go

@@ -1,5 +1,7 @@
 package goquery
 
+import "iter"
+
 // Each iterates over a Selection object, executing a function for each
 // matched element. It returns the current Selection object. The function
 // f is called for each element in the selection with the index of the
@@ -12,6 +14,18 @@ func (s *Selection) Each(f func(int, *Selection)) *Selection {
 	return s
 }
 
+// EachIter returns an iterator that yields the Selection object in order.
+// The implementation is similar to Each, but it returns an iterator instead.
+func (s *Selection) EachIter() iter.Seq2[int, *Selection] {
+	return func(yield func(int, *Selection) bool) {
+		for i, n := range s.Nodes {
+			if !yield(i, newSingleSelection(n, s.document)) {
+				return
+			}
+		}
+	}
+}
+
 // EachWithBreak iterates over a Selection object, executing a function for each
 // matched element. It is identical to Each except that it is possible to break
 // out of the loop by returning false in the callback function. It returns the

iteration_test.go

@@ -105,3 +105,39 @@ func TestGenericMap(t *testing.T) {
 		t.Errorf("Expected Map array result to have a length of 3, found %v.", len(vals))
 	}
 }
+
+func TestEachIter(t *testing.T) {
+	var cnt int
+
+	sel := Doc().Find(".hero-unit .row-fluid")
+
+	for i, s := range sel.EachIter() {
+		cnt++
+		t.Logf("At index %v, node %v", i, s.Nodes[0].Data)
+	}
+
+	sel = sel.Find("a")
+
+	if cnt != 4 {
+		t.Errorf("Expected Each() to call function 4 times, got %v times.", cnt)
+	}
+	assertLength(t, sel.Nodes, 6)
+}
+
+func TestEachIterWithBreak(t *testing.T) {
+	var cnt int
+
+	sel := Doc().Find(".hero-unit .row-fluid")
+	for i, s := range sel.EachIter() {
+		cnt++
+		t.Logf("At index %v, node %v", i, s.Nodes[0].Data)
+		break
+	}
+
+	sel = sel.Find("a")
+
+	if cnt != 1 {
+		t.Errorf("Expected Each() to call function 1 time, got %v times.", cnt)
+	}
+	assertLength(t, sel.Nodes, 6)
+}

property.go

@@ -1,7 +1,6 @@
 package goquery
 
 import (
-	"bytes"
 	"regexp"
 	"strings"
 
@@ -60,14 +59,14 @@ func (s *Selection) SetAttr(attrName, val string) *Selection {
 // Text gets the combined text contents of each element in the set of matched
 // elements, including their descendants.
 func (s *Selection) Text() string {
-	var buf bytes.Buffer
+	var builder strings.Builder
 
 	// Slightly optimized vs calling Each: no single selection object created
 	var f func(*html.Node)
 	f = func(n *html.Node) {
 		if n.Type == html.TextNode {
 			// Keep newlines and spaces, like jQuery
-			buf.WriteString(n.Data)
+			builder.WriteString(n.Data)
 		}
 		if n.FirstChild != nil {
 			for c := n.FirstChild; c != nil; c = c.NextSibling {
@@ -79,7 +78,7 @@ func (s *Selection) Text() string {
 		f(n)
 	}
 
-	return buf.String()
+	return builder.String()
 }
 
 // Size is an alias for Length.
@@ -97,16 +96,16 @@ func (s *Selection) Length() int {
 func (s *Selection) Html() (ret string, e error) {
 	// Since there is no .innerHtml, the HTML content must be re-created from
 	// the nodes using html.Render.
-	var buf bytes.Buffer
+	var builder strings.Builder
 
 	if len(s.Nodes) > 0 {
 		for c := s.Nodes[0].FirstChild; c != nil; c = c.NextSibling {
-			e = html.Render(&buf, c)
+			e = html.Render(&builder, c)
 			if e != nil {
 				return
 			}
 		}
-		ret = buf.String()
+		ret = builder.String()
 	}
 
 	return
@@ -168,7 +167,7 @@ func (s *Selection) RemoveClass(class ...string) *Selection {
 		} else {
 			classes, attr := getClassesAndAttr(n, true)
 			for _, rcl := range rclasses {
-				classes = strings.Replace(classes, " "+rcl+" ", " ", -1)
+				classes = strings.ReplaceAll(classes, " "+rcl+" ", " ")
 			}
 
 			setClasses(n, attr, classes)
@@ -192,8 +191,9 @@ func (s *Selection) ToggleClass(class ...string) *Selection {
 	for _, n := range s.Nodes {
 		classes, attr := getClassesAndAttr(n, true)
 		for _, tcl := range tcls {
-			if strings.Contains(classes, " "+tcl+" ") {
-				classes = strings.Replace(classes, " "+tcl+" ", " ", -1)
+			spaceAroundTcl := " " + tcl + " "
+			if strings.Contains(classes, spaceAroundTcl) {
+				classes = strings.ReplaceAll(classes, spaceAroundTcl, " ")
 			} else {
 				classes += tcl + " "
 			}

utilities.go

@@ -1,8 +1,8 @@
 package goquery
 
 import (
-	"bytes"
 	"io"
+	"strings"
 
 	"golang.org/x/net/html"
 )
@@ -26,13 +26,12 @@ var nodeNames = []string{
 // Go's net/html package defines the following node types, listed with
 // the corresponding returned value from this function:
 //
-//     ErrorNode : #error
-//     TextNode : #text
-//     DocumentNode : #document
-//     ElementNode : the element's tag name
-//     CommentNode : #comment
-//     DoctypeNode : the name of the document type
-//
+//	ErrorNode : #error
+//	TextNode : #text
+//	DocumentNode : #document
+//	ElementNode : the element's tag name
+//	CommentNode : #comment
+//	DoctypeNode : the name of the document type
 func NodeName(s *Selection) string {
 	if s.Length() == 0 {
 		return ""
@@ -77,11 +76,11 @@ func Render(w io.Writer, s *Selection) error {
 // because this is not a jQuery method (in javascript-land, this is
 // a property provided by the DOM).
 func OuterHtml(s *Selection) (string, error) {
-	var buf bytes.Buffer
-	if err := Render(&buf, s); err != nil {
+	var builder strings.Builder
+	if err := Render(&builder, s); err != nil {
 		return "", err
 	}
-	return buf.String(), nil
+	return builder.String(), nil
 }
 
 // Loop through all container nodes to search for the target node.