How to use FirstElementChild method of html Package

Best K6 code snippet using html.FirstElementChild

element.go

Source:element.go

...115		t.Run("set", func(t *testing.T) {116			div := makeDiv(t)117			div.SetInnerHTML( /* language=html */ `<h1><a href="/">Hello, world!</a></h1><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>`)118			please.ExpectEqual(t, div.ChildNodes().Length(), 2)119			h1 := div.FirstElementChild()120			please.ExpectEqual(t, h1.TagName(), "H1")121			a := h1.FirstElementChild()122			please.ExpectEqual(t, a.Attribute("href"), "/")123			text := a.FirstChild().(dom.Text)124			please.ExpectEqual(t, text.Data(), "Hello, world!")125			p := div.LastElementChild()126			please.ExpectEqual(t, p.TagName(), "P")127			paragraph := p.FirstChild().(dom.Text)128			please.ExpectEqual(t, paragraph.Data(), "Lorem ipsum dolor sit amet, consectetur adipiscing elit.")129		})130	})131}132func ElementOuterHTML(t *testing.T, create CreateElementFunc) {133	makeDiv := func(t *testing.T) dom.Element {134		innerHTML := /* language=html */ `<div><p>loading<span>...</span></p><p>please wait</p></div>`135		ul, ok := create(t, innerHTML).(dom.Element)136		if !ok {137			t.Errorf("result from create is not a dom.Element")138		}139		return ul140	}141	t.Run("outerHTML", func(t *testing.T) {142		t.Run("get", func(t *testing.T) {143			ul := makeDiv(t)144			s := ul.OuterHTML()145			please.ExpectEqual(t, s /* language=html */, `<div><p>loading<span>...</span></p><p>please wait</p></div>`)146		})147		t.Run("set", func(t *testing.T) {148			t.Run("multiple elements", func(t *testing.T) {149				div := makeDiv(t).(dom.Element)150				p := div.FirstElementChild()151				please.ExpectEqual(t, div.ChildElementCount(), 2)152				p.SetOuterHTML( /* language=html */ `<h1><a href="/">Hello, world!</a></h1><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>`)153				please.ExpectEqual(t, div.ChildElementCount(), 3)154				firstChild := div.FirstElementChild()155				please.ExpectEqual(t, firstChild.OuterHTML(), `<h1><a href="/">Hello, world!</a></h1>`)156				please.ExpectEqual(t, div.OuterHTML(), `<div><h1><a href="/">Hello, world!</a></h1><p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p><p>please wait</p></div>`)157			})158			t.Run("a single element", func(t *testing.T) {159				div := makeDiv(t)160				p := div.FirstElementChild()161				p.SetOuterHTML( /* language=html */ `<h1><a href="/">Hello, world!</a></h1>`)162				t.Run("the element is replaced in the document", func(t *testing.T) {163					h1 := div.FirstChild().(dom.Element)164					please.ExpectEqual(t, h1.OuterHTML(), `<h1><a href="/">Hello, world!</a></h1>`)165				})166				t.Run("the variable whose outerHTML property was set will still holds a reference to the original element", func(t *testing.T) {167					please.ExpectEqual(t, p.OuterHTML(), "<p>loading<span>...</span></p>")168				})169			})170		})171	})172}173func ElementQueries(t *testing.T, create CreateElementFunc) {174	makeUL := func(t *testing.T) dom.Element {175		innerHTML := /* language=html */ `<ul id="page-list">176	<li id="empty"></li>177	<li id="middle">178		<a href="https://example.com">Example</a>179	</li>180	<li id="input">181		<label>182			some description183			<i class="fa fa-cloud">184			</i><input name="item">	185		</label>186		<ol class="errors">187			<li class="error client-generated latest">Error 1</li>188			<li class="error client-generated">Error 2</li>189			<li class="error server-generated">Error 3</li>190		</ol>191	</li>192</ul>`193		ul, ok := create(t, innerHTML).(dom.Element)194		if !ok {195			t.Errorf("result from create is not a dom.Element")196		}197		return ul198	}199	t.Run("getElementById", func(t *testing.T) {200		ul := makeUL(t)201		empty := ul.GetElementByID("empty")202		please.ExpectTrue(t, empty != nil)203		please.ExpectEqual(t, empty.TagName(), "LI")204		please.ExpectEqual(t, empty.ChildElementCount(), 0)205		pageList := ul.GetElementByID("page-list")206		please.ExpectEqual(t, pageList.TagName(), "UL")207		please.ExpectEqual(t, pageList.ChildElementCount(), 3)208	})209	t.Run("getElementsByTagName", func(t *testing.T) {210		ul := makeUL(t)211		list := ul.GetElementsByTagName("li")212		please.ExpectEqual(t, list.Length(), 6)213	})214	t.Run("getElementsByClassName", func(t *testing.T) {215		ul := makeUL(t)216		list := ul.GetElementsByClassName("client-generated    error")217		please.ExpectEqual(t, list.Length(), 2)218	})219}220func ElementTextContent(t *testing.T, create CreateElementFunc) {221	makeDiv := func(t *testing.T) dom.Element {222		innerHTML := /* language=html */ `<div><p>loading<span>...</span></p><script>alert("loading!")</script></div>`223		ul, ok := create(t, innerHTML).(dom.Element)224		if !ok {225			t.Errorf("result from create is not a dom.Element")226		}227		return ul228	}229	t.Run("get", func(t *testing.T) {230		div := makeDiv(t)231		please.ExpectEqual(t, div.TextContent(), `loading...alert("loading!")`)232	})233	t.Run("set", func(t *testing.T) {234		div := makeDiv(t)235		div.SetTextContent("Hello, world!")236		please.ExpectEqual(t, div.OuterHTML(), `<div>Hello, world!</div>`)237	})238}239func ElementParent(t *testing.T, createParent CreateParentNodeFunc, createEl CreateChildNodeFunc) {240	t.Run("ElementParent", func(t *testing.T) {241		t.Run("created parent node is empty", func(t *testing.T) {242			parent := createParent(t).(dom.ElementParent)243			please.ExpectEqual(t, parent.ChildElementCount(), 0)244			please.ExpectEqual(t, parent.FirstElementChild(), nil)245			please.ExpectEqual(t, parent.LastElementChild(), nil)246			please.ExpectEqual(t, parent.Children().Length(), 0)247		})248		t.Run("createEl returns an element", func(t *testing.T) {249			el, ok := createEl(t).(dom.Element)250			please.ExpectTrue(t, ok)251			if el.TagName() == atom.Cite.String() {252				t.Errorf(`expected tag name to not be "cite"`)253			}254		})255		t.Run("add Element", func(t *testing.T) {256			parent := createParent(t)257			child := createEl(t)258			parent.Append(child)259			please.ExpectEqual(t, parent.ChildElementCount(), 1)260			please.ExpectTrue(t, parent.FirstElementChild().IsSameNode(child))261			please.ExpectTrue(t, parent.LastElementChild().IsSameNode(child))262			please.ExpectEqual(t, parent.Children().Length(), 1)263		})264		t.Run("add two Elements", func(t *testing.T) {265			parent := createParent(t)266			child1 := createEl(t).(dom.Element)267			child2 := createEl(t).(dom.Element)268			parent.Append(child1, child2)269			please.ExpectEqual(t, parent.ChildElementCount(), 2)270			please.ExpectTrue(t, parent.FirstElementChild().IsSameNode(child1))271			please.ExpectTrue(t, parent.LastElementChild().IsSameNode(child2))272			please.ExpectTrue(t, child2.PreviousSibling().IsSameNode(child1))273			please.ExpectTrue(t, child1.NextSibling().IsSameNode(child2))274			please.ExpectEqual(t, parent.Children().Length(), 2)275			please.ExpectEqual(t, parent.GetElementsByTagName(child1.TagName()).Length(), 2)276		})277		t.Run("add three Elements with classes", func(t *testing.T) {278			parent := createParent(t)279			child1 := createEl(t).(dom.Element)280			child1.SetAttribute("class", "first child")281			child2 := createEl(t).(dom.Element)282			child2.SetAttribute("class", "child last")283			parent.Append(child1, child2)284			please.ExpectEqual(t, parent.ChildElementCount(), 2)285			please.ExpectTrue(t, parent.FirstElementChild().IsSameNode(child1))286			please.ExpectTrue(t, parent.LastElementChild().IsSameNode(child2))287			please.ExpectTrue(t, child2.PreviousSibling().IsSameNode(child1))288			please.ExpectTrue(t, child1.NextSibling().IsSameNode(child2))289			please.ExpectEqual(t, parent.Children().Length(), 2)290			please.ExpectEqual(t, parent.GetElementsByTagName(child1.TagName()).Length(), 2)291			please.ExpectEqual(t, parent.GetElementsByTagName(atom.Cite.String()).Length(), 0)292			please.ExpectEqual(t, parent.GetElementsByClassName("first child").Length(), 1)293			please.ExpectEqual(t, parent.GetElementsByClassName("child").Length(), 2)294			please.ExpectEqual(t, parent.GetElementsByClassName("random-class-name").Length(), 0)295		})296	})297}298func TestElementInsertAdjacentHTML(t *testing.T, createEl CreateChildNodeFunc) {299	t.Run("InsertAdjacentHTML", func(t *testing.T) {...

contents.go

Source:contents.go

...89		} else if x.Type == html.ElementNode {90			count++91		}92	}93	if count > 1 || dom.FirstElementChild(node) == nil {94		return node95	}96	return findFirstContentNode(dom.FirstElementChild(node))97}98func encloseArticle(top *html.Node) {99	children := dom.ChildNodes(top)100	if len(children) == 1 {101		node := children[0]102		switch node.Type {103		case html.TextNode:104			section := dom.CreateElement("section")105			dom.AppendChild(node.Parent, section)106			dom.AppendChild(section, node)107		case html.ElementNode:108			if node.Data == "div" {109				node.Data = "section"110			} else {111				section := dom.CreateElement("section")112				dom.AppendChild(node.Parent, section)113				dom.AppendChild(section, node)114			}115		}116	} else {117		section := dom.CreateElement("section")118		dom.AppendChild(top, section)119		for _, x := range children {120			dom.AppendChild(section, x)121		}122	}123}124func removeEmbeds(top *html.Node) {125	dom.RemoveNodes(dom.GetAllNodesWithTag(top, "object", "embed", "iframe", "video", "audio"), nil)126}127func fixNoscriptImages(top *html.Node) {128	// A bug in readability prevents us to extract images.129	// It does move the noscript content when it's a single image130	// but only when the noscript previous sibling is an image.131	// This will replace the noscript content with the image132	// in the other case.133	noscripts := dom.GetElementsByTagName(top, "noscript")134	dom.ForEachNode(noscripts, func(noscript *html.Node, _ int) {135		noscriptContent := dom.TextContent(noscript)136		tmpDoc, err := html.Parse(strings.NewReader(noscriptContent))137		if err != nil {138			return139		}140		tmpBody := dom.GetElementsByTagName(tmpDoc, "body")[0]141		if !isSingleImage(tmpBody) {142			return143		}144		// Sometimes, the image is *after* the noscript tag.145		// Let's move it before so the next step can detect it.146		nextElement := dom.NextElementSibling(noscript)147		if nextElement != nil && isSingleImage(nextElement) {148			if noscript.Parent != nil {149				noscript.Parent.InsertBefore(dom.Clone(nextElement, true), noscript)150				noscript.Parent.RemoveChild(nextElement)151			}152		}153		prevElement := dom.PreviousElementSibling(noscript)154		if prevElement == nil || !isSingleImage(prevElement) {155			dom.ReplaceChild(noscript.Parent, dom.FirstElementChild(tmpBody), noscript)156		}157	})158}159func isSingleImage(node *html.Node) bool {160	if dom.TagName(node) == "img" {161		return true162	}163	children := dom.Children(node)164	textContent := dom.TextContent(node)165	if len(children) != 1 || strings.TrimSpace(textContent) != "" {166		return false167	}168	return isSingleImage(children[0])169}...

attributes.go

Source:attributes.go

...63}64func (d Document) Embeds() (htmlcollection.HtmlCollection, error) {65	return d.getAttributeHTMLCollection("embeds")66}67func (d Document) FirstElementChild() (element.Element, error) {68	return d.getAttributeElement("firstElementChild")69}70func (d Document) Fonts() {71	//TO IMPLEMENT72}73func (d Document) Forms() (htmlcollection.HtmlCollection, error) {74	return d.getAttributeHTMLCollection("forms")75}76func (d Document) FullscreenElement() (element.Element, error) {77	return d.getAttributeElement("fullscreenElement")78}79func (d Document) Head() (element.Element, error) {80	return d.getAttributeElement("head")81}...

FirstElementChild

Using AI Code Generation

1import (2func main() {3	doc, err := html.Parse(os.Stdin)4	if err != nil {5		fmt.Fprintf(os.Stderr, "findlinks1: %v\n", err)6		os.Exit(1)7	}8	for _, link := range visit(nil, doc) {9		fmt.Println(link)10	}11}12func visit(links []string, n *html.Node) []string {13	if n.Type == html.ElementNode {14		links = append(links, n.Data)15	}16	if n.FirstChild != nil {17		links = visit(links, n.FirstChild)18	}19	if n.NextSibling != nil {20		links = visit(links, n.NextSibling)21	}22}23import (24func main() {25	doc, err := html.Parse(os.Stdin)26	if err != nil {27		fmt.Fprintf(os.Stderr, "findlinks1: %v\n", err)28		os.Exit(1)29	}30	for _, link := range visit(nil, doc) {31		fmt.Println(link)32	}33}34func visit(links []string, n *html.Node) []string {35	if n.Type == html.ElementNode {36		links = append(links, n.Data)37	}38	if n.LastChild != nil {39		links = visit(links, n.LastChild)40	}41	if n.NextSibling != nil {42		links = visit(links, n.NextSibling)43	}44}45import (46func main() {47	doc, err := html.Parse(os.Stdin)48	if err != nil {49		fmt.Fprintf(os.Stderr, "findlinks1: %v\n", err)50		os.Exit(1)51	}52	for _, link := range visit(nil, doc) {

FirstElementChild

Using AI Code Generation

1import (2func main() {3	f, err := os.Open("index.html")4	if err != nil {5		fmt.Println(err)6	}7	defer f.Close()8	doc, err := html.Parse(f)9	if err != nil {10		fmt.Println(err)11	}12	fmt.Println(doc.FirstChild.Data)13}14In the above code, we have imported html package from golang.org/x/net/html. We have created a file with name index.html and added the following content:15import (16func main() {17	f, err := os.Open("index.html")18	if err != nil {19		fmt.Println(err)20	}21	defer f.Close()22	doc, err := html.Parse(f)23	if err != nil {24		fmt.Println(err)25	}26	fmt.Println(doc.LastChild.Data)27}28In the above code, we have imported html package from golang.org/x/net/html. We have created a file with name index.html and added the following content:29We have opened the file with the help of os.Open() function and stored the file handler in the variable f. We have used the html.Parse() function

FirstElementChild

Using AI Code Generation

1import (2func main() {3	z := html.NewTokenizer(resp.Body)4	for {5		tt := z.Next()6		switch {7			t := z.Token()8			if t.Data == "a" {9				for _, a := range t.Attr {10					if a.Key == "href" {11						fmt.Printf("Link: %q12					}13				}14			}15		}16	}17}18import (19func main() {20	z := html.NewTokenizer(resp.Body)21	for {22		tt := z.Next()23		switch {24			t := z.Token()

FirstElementChild

Using AI Code Generation

1import (2func main() {3	if err != nil {4		fmt.Println(err)5	}6	doc.Find("div").Each(func(i int, s *goquery.Selection) {7		fmt.Println(s.First().Text())8	})9}

FirstElementChild

Using AI Code Generation

1import (2func main() {3	defer resp.Body.Close()4	body, _ := ioutil.ReadAll(resp.Body)5	doc, _ := html.Parse(strings.NewReader(string(body)))6	forEachNode(doc, startElement, endElement)7}8func forEachNode(n *html.Node, pre, post func(n *html.Node)) {9	if pre != nil {10		pre(n)11	}12	for c := n.FirstChild; c != nil; c = c.NextSibling {13		forEachNode(c, pre, post)14	}15	if post != nil {16		post(n)17	}18}19func startElement(n *html.Node) {20	if n.Type == html.ElementNode {21		fmt.Println(n.Data)22	}23}24func endElement(n *html.Node)

FirstElementChild

Using AI Code Generation

1import (2func main() {3    doc, err := html.Parse(strings.NewReader("<html><body><p>Hi</p></body></html>"))4    if err != nil {5        fmt.Printf("Error parsing html")6    }7    fmt.Printf("%v", doc.FirstChild.FirstChild.FirstChild.Data)8}

FirstElementChild

Using AI Code Generation

1import (2func main() {3	resp, err := http.Get(url)4	if err != nil {5		fmt.Fprintf(os.Stderr, "fetch: %v6		os.Exit(1)7	}8	defer resp.Body.Close()9	doc, err := html.Parse(resp.Body)10	if err != nil {11		fmt.Fprintf(os.Stderr, "findlinks1: %v12		os.Exit(1)13	}14	forEachNode(doc, startElement, endElement)15}16func forEachNode(n *html.Node, pre, post func(n *html.Node)) {17	if pre != nil {18		pre(n)19	}20	for c := n.FirstChild; c != nil; c = c.NextSibling {21		forEachNode(c, pre, post)22	}23	if post != nil {24		post(n)25	}26}27func startElement(n *html.Node) {28	if n.Type == html.ElementNode {29		fmt.Printf("%s30	}31}32func endElement(n *html.Node) {33}

FirstElementChild

Using AI Code Generation

1import (2func main() {3	doc, err := html.Parse(strings.NewReader(s))4	if err != nil {5		fmt.Println(err)6	}7	fmt.Println(node.Data)8}9func (n *Node) NextSibling() *Node10import (11func main() {12	doc, err := html.Parse(strings.NewReader(s))13	if err != nil {14		fmt.Println(err)15	}16	fmt.Println(node.Data)17}18func (n *Node) NextElementSibling() *Node19import (20func main() {

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