How to use Previous method of rod Package

Best Rod code snippet using rod.Previous

3_stacks_and_queues.go

Source:3_stacks_and_queues.go

1package main2import (3	"constraints"4	"errors"5)6type Stack[T constraints.Ordered] struct {7	last *Node[T]8}9func newStack[T constraints.Ordered]() *Stack[T] {10	return &Stack[T]{}11}12func (stack *Stack[T]) Push(value T) {13	if stack.last == nil {14		stack.last = &Node[T]{15			value: value,16		}17	} else {18		stack.last = &Node[T]{19			value: value,20			next:  stack.last,21		}22	}23}24func (stack *Stack[T]) Pick() *T {25	if stack.last != nil {26		return &stack.last.value27	}28	return nil29}30func (stack *Stack[T]) Pop() *T {31	if stack.last != nil {32		lastValue := stack.last.value33		stack.last = stack.last.next34		return &lastValue35	}36	return nil37}38func (stack *Stack[T]) IsEmpty() bool {39	lastElement := stack.Pick()40	return lastElement == nil41}42type Queue[T constraints.Ordered] struct {43	first *Node[T]44}45func newQueue[T constraints.Ordered]() *Queue[T] {46	return &Queue[T]{}47}48func (queue *Queue[T]) Pick() *T {49	if queue.first != nil {50		return &queue.first.value51	}52	return nil53}54func (queue *Queue[T]) Enqueue(value T) {55	if queue.first == nil {56		queue.first = &Node[T]{57			value: value,58		}59	} else {60		current := queue.first61		for current.next != nil {62			current = current.next63		}64		current.next = &Node[T]{65			value: value,66		}67	}68}69func (queue *Queue[T]) Dequeue() *T {70	if queue.first != nil {71		firstValue := queue.first.value72		queue.first = queue.first.next73		return &firstValue74	}75	return nil76}77type MinStack[T constraints.Ordered] struct {78	valueStack   *Stack[T]79	minimumStack *Stack[T]80}81func newMinStack[T constraints.Ordered]() *MinStack[T] {82	return &MinStack[T]{83		valueStack:   newStack[T](),84		minimumStack: newStack[T](),85	}86}87func (minStack *MinStack[T]) Push(value T) {88	minStack.valueStack.Push(value)89	if currentMinimum := minStack.minimumStack.Pick(); currentMinimum == nil || (*currentMinimum) > value {90		minStack.minimumStack.Push(value)91	}92}93func (minStack *MinStack[T]) Pick() *T {94	return minStack.valueStack.Pick()95}96func (minStack *MinStack[T]) Pop() *T {97	lastValue := minStack.valueStack.Pop()98	if *lastValue == *minStack.minimumStack.Pick() {99		_ = minStack.minimumStack.Pop()100	}101	return lastValue102}103func (minStack *MinStack[T]) Min() *T {104	return minStack.minimumStack.Pick()105}106type HanoiGame struct {107	height         int108	sourceRod      *Stack[int]109	spareRod       *Stack[int]110	destinationRod *Stack[int]111}112func newHanoiGame(height int) (*HanoiGame, error) {113	if height < 1 {114		return nil, errors.New("Min Height for hanoi tower is 3")115	}116	game := &HanoiGame{117		height:         height,118		sourceRod:      newStack[int](),119		spareRod:       newStack[int](),120		destinationRod: newStack[int](),121	}122	for i := height; i >= 1; i-- {123		game.sourceRod.Push(i)124	}125	return game, nil126}127func (game *HanoiGame) Solve() {128	Move(game.height, game.sourceRod, game.destinationRod, game.spareRod)129}130func Move(numberOfDisks int, source, destination, spare *Stack[int]) {131	if numberOfDisks == 1 {132		Swap(source, destination)133	} else {134		Move(numberOfDisks-1, source, spare, destination)135		Move(1, source, destination, spare)136		Move(numberOfDisks-1, spare, destination, source)137	}138}139func Swap(source, destination *Stack[int]) {140	element := source.Pop()141	destination.Push(*element)142}143type QueueOnTwoStacks[T constraints.Ordered] struct {144	newestElements *Stack[T]145	oldestElements *Stack[T]146}147func newQueueOnTwoStacks[T constraints.Ordered]() *QueueOnTwoStacks[T] {148	return &QueueOnTwoStacks[T]{149		newestElements: newStack[T](),150		oldestElements: newStack[T](),151	}152}153func (queue *QueueOnTwoStacks[T]) Pick() *T {154	shiftStacks(queue.newestElements, queue.oldestElements)155	return queue.oldestElements.Pick()156}157func (queue *QueueOnTwoStacks[T]) Enqueue(value T) {158	queue.newestElements.Push(value)159}160func (queue *QueueOnTwoStacks[T]) Dequeue() *T {161	shiftStacks(queue.newestElements, queue.oldestElements)162	return queue.oldestElements.Pop()163}164func shiftStacks[T constraints.Ordered](from, to *Stack[T]) {165	if !to.IsEmpty() {166		return167	}168	for fromElement := from.Pop(); fromElement != nil; fromElement = from.Pop() {169		to.Push(*fromElement)170	}171}172type MaxStack[T constraints.Ordered] struct {173	top *Node[T]174}175func newMaxStack[T constraints.Ordered]() *MaxStack[T] {176	return &MaxStack[T]{}177}178func (stack *MaxStack[T]) Push(value T) {179	if stack.top == nil || value >= stack.top.value {180		stack.top = &Node[T]{181			value: value,182			next:  stack.top,183		}184	} else {185		previous := stack.top186		current := previous.next187		for current != nil && current.value > value {188			previous = current189			current = previous.next190		}191		newNode := &Node[T]{192			value: value,193			next:  current,194		}195		previous.next = newNode196	}197}198func (stack *MaxStack[T]) Pick() *T {199	if stack.top != nil {200		return &stack.top.value201	}202	return nil203}204func (stack *MaxStack[T]) Pop() *T {205	if stack.top != nil {206		lastValue := stack.top.value207		stack.top = stack.top.next208		return &lastValue209	}210	return nil211}212func (stack *MaxStack[T]) IsEmpty() bool {213	lastElement := stack.Pick()214	return lastElement == nil215}216type IAnimal interface {217	GetName() string218}219type Animal struct {220	Name string221}222func (animal Animal) GetName() string {223	return animal.Name224}225type Cat struct {226	Animal227}228type Dog struct {229	Animal230}231func newCat(name string) *Cat {232	return &Cat{233		Animal{234			Name: name,235		},236	}237}238func newDog(name string) *Dog {239	return &Dog{240		Animal{241			Name: name,242		},243	}244}245type Shelter struct {246	first *Node[IAnimal]247}248func newShelter() *Shelter {249	return &Shelter{}250}251func (shelter *Shelter) Pick() IAnimal {252	if shelter.first != nil {253		return shelter.first.value254	}255	return nil256}257func (shelter *Shelter) Enqueue(value IAnimal) {258	if shelter.first == nil {259		shelter.first = &Node[IAnimal]{260			value: value,261		}262	} else {263		current := shelter.first264		for current.next != nil {265			current = current.next266		}267		current.next = &Node[IAnimal]{268			value: value,269		}270	}271}272func (shelter *Shelter) DequeueAny() IAnimal {273	if shelter.first != nil {274		firstValue := shelter.first.value275		shelter.first = shelter.first.next276		return firstValue277	}278	return nil279}280func (shelter *Shelter) DequeueDog() *Dog {281	animal := DequeueSpecific[*Dog](shelter)282	dog, _ := animal.(*Dog)283	return dog284}285func (shelter *Shelter) DequeueCat() *Cat {286	animal := DequeueSpecific[*Cat](shelter)287	cat, _ :=  animal.(*Cat)288	return cat289}290func DequeueSpecific[T IAnimal](shelter *Shelter) IAnimal {291	if animal, isSpecificAnimal := shelter.first.value.(T); isSpecificAnimal {292		shelter.first = shelter.first.next293		return animal294	}295	previousAnimal := shelter.first296	currentAnimal := previousAnimal.next297	for currentAnimal != nil {298		if animal, isSpecificAnimal := currentAnimal.value.(T); isSpecificAnimal {299			previousAnimal.next = currentAnimal.next300			return animal301		}302		previousAnimal = currentAnimal303		currentAnimal = previousAnimal.next304	}305	return nil306}...

engine.go

Source:engine.go

1package engine2import (3	"fmt"4	"net/http"5	"os"6	"runtime"7	"strings"8	"github.com/go-rod/rod"9	"github.com/go-rod/rod/lib/launcher"10	"github.com/pkg/errors"11	ps "github.com/shirou/gopsutil/v3/process"12	"github.com/projectdiscovery/fileutil"13	"github.com/projectdiscovery/nuclei/v2/pkg/types"14	"github.com/projectdiscovery/stringsutil"15)16// Browser is a browser structure for nuclei headless module17type Browser struct {18	customAgent  string19	tempDir      string20	previousPIDs map[int32]struct{} // track already running PIDs21	engine       *rod.Browser22	httpclient   *http.Client23	options      *types.Options24}25// New creates a new nuclei headless browser module26func New(options *types.Options) (*Browser, error) {27	dataStore, err := os.MkdirTemp("", "nuclei-*")28	if err != nil {29		return nil, errors.Wrap(err, "could not create temporary directory")30	}31	previousPIDs := findChromeProcesses()32	chromeLauncher := launcher.New().33		Leakless(false).34		Set("disable-gpu", "true").35		Set("ignore-certificate-errors", "true").36		Set("ignore-certificate-errors", "1").37		Set("disable-crash-reporter", "true").38		Set("disable-notifications", "true").39		Set("hide-scrollbars", "true").40		Set("window-size", fmt.Sprintf("%d,%d", 1080, 1920)).41		Set("mute-audio", "true").42		Set("incognito", "true").43		Delete("use-mock-keychain").44		UserDataDir(dataStore)45	if MustDisableSandbox() {46		chromeLauncher = chromeLauncher.NoSandbox(true)47	}48	executablePath, err := os.Executable()49	if err != nil {50		return nil, err51	}52	// if musl is used, most likely we are on alpine linux which is not supported by go-rod, so we fallback to default chrome53	useMusl, _ := fileutil.UseMusl(executablePath)54	if options.UseInstalledChrome || useMusl {55		if chromePath, hasChrome := launcher.LookPath(); hasChrome {56			chromeLauncher.Bin(chromePath)57		} else {58			return nil, errors.New("the chrome browser is not installed")59		}60	}61	if options.ShowBrowser {62		chromeLauncher = chromeLauncher.Headless(false)63	} else {64		chromeLauncher = chromeLauncher.Headless(true)65	}66	if types.ProxyURL != "" {67		chromeLauncher = chromeLauncher.Proxy(types.ProxyURL)68	}69	launcherURL, err := chromeLauncher.Launch()70	if err != nil {71		return nil, err72	}73	browser := rod.New().ControlURL(launcherURL)74	if browserErr := browser.Connect(); browserErr != nil {75		return nil, browserErr76	}77	customAgent := ""78	for _, option := range options.CustomHeaders {79		parts := strings.SplitN(option, ":", 2)80		if len(parts) != 2 {81			continue82		}83		if strings.EqualFold(parts[0], "User-Agent") {84			customAgent = parts[1]85		}86	}87	httpclient, err := newHttpClient(options)88	if err != nil {89		return nil, err90	}91	engine := &Browser{92		tempDir:     dataStore,93		customAgent: customAgent,94		engine:      browser,95		httpclient:  httpclient,96		options:     options,97	}98	engine.previousPIDs = previousPIDs99	return engine, nil100}101// MustDisableSandbox determines if the current os and user needs sandbox mode disabled102func MustDisableSandbox() bool {103	// linux with root user needs "--no-sandbox" option104	// https://github.com/chromium/chromium/blob/c4d3c31083a2e1481253ff2d24298a1dfe19c754/chrome/test/chromedriver/client/chromedriver.py#L209105	return runtime.GOOS == "linux" && os.Geteuid() == 0106}107// SetUserAgent sets custom user agent to the browser108func (b *Browser) SetUserAgent(customUserAgent string) {109	b.customAgent = customUserAgent110}111// UserAgent fetch the currently set custom user agent112func (b *Browser) UserAgent() string {113	return b.customAgent114}115// Close closes the browser engine116func (b *Browser) Close() {117	b.engine.Close()118	os.RemoveAll(b.tempDir)119	b.killChromeProcesses()120}121// killChromeProcesses any and all new chrome processes started after122// headless process launch.123func (b *Browser) killChromeProcesses() {124	processes, _ := ps.Processes()125	for _, process := range processes {126		// skip non-chrome processes127		if !isChromeProcess(process) {128			continue129		}130		// skip chrome processes that were already running131		if _, ok := b.previousPIDs[process.Pid]; ok {132			continue133		}134		_ = process.Kill()135	}136}137// findChromeProcesses finds chrome process running on host138func findChromeProcesses() map[int32]struct{} {139	processes, _ := ps.Processes()140	list := make(map[int32]struct{})141	for _, process := range processes {142		if isChromeProcess(process) {143			list[process.Pid] = struct{}{}144			if ppid, err := process.Ppid(); err == nil {145				list[ppid] = struct{}{}146			}147		}148	}149	return list150}151// isChromeProcess checks if a process is chrome/chromium152func isChromeProcess(process *ps.Process) bool {153	name, _ := process.Name()154	executable, _ := process.Exe()155	return stringsutil.ContainsAny(name, "chrome", "chromium") || stringsutil.ContainsAny(executable, "chrome", "chromium")156}...

Using AI Code Generation

1import (2type Point struct {3}4func (p Point) Distance(q Point) float64 {5	return math.Hypot(q.x-p.x, q.y-p.y)6}7func (path Path) Distance() float64 {8	for i := range path {9		if i > 0 {10			sum += path[i-1].Distance(path[i])11		}12	}13}14func main() {15	p := Path{16		{1, 1},17		{5, 1},18		{5, 4},19		{1, 1},20	}21	fmt.Println(p.Distance())22}23import (24type Point struct {25}26func (p Point) Distance(q Point) float64 {27	return math.Hypot(q.x-p.x, q.y-p.y)28}29func (path Path) Distance() float64 {30	for i := range path {31		if i > 0 {32			sum += path[i-1].Distance(path[i])33		}34	}35}36func (p *Point) ScaleBy(factor float64) {37}38func main() {39	r := &Point{1, 2}40	r.ScaleBy(2)41	fmt.Println(*r)42}43import (44type Point struct {45}46func (p Point) Distance(q Point) float64 {47	return math.Hypot(q.x-p.x, q.y-p.y)48}49func (path Path) Distance() float64 {50	for i := range path {51		if i > 0 {52			sum += path[i-1].Distance(path[i])53		}54	}55}56func (p *Point) ScaleBy(factor float64) {57}58func (p *Point

Using AI Code Generation

1import (2type MyReader struct{}3func (r MyReader) Read(b []byte) (int, error) {4    for i := range b {5    }6    return len(b), nil7}8func main() {9    reader.Validate(MyReader{})10}11import (12func Pic(dx, dy int) [][]uint8 {13    for i := 0; i < dy; i++ {14        for j := 0; j < dx; j++ {15            row = append(row, uint8((i+j)/2))16        }17        s = append(s, row)18    }19}20func main() {21    pic.Show(Pic)22}23import (24func Walk(t *tree.Tree, ch chan int) {25    walk(t, ch)26    close(ch)27}28func walk(t *tree.Tree, ch chan int) {29    if t.Left != nil {30        walk(t.Left, ch)31    }32    if t.Right != nil {33        walk(t.Right, ch)34    }35}36func Same(t1, t2 *tree.Tree) bool {37    ch1, ch2 := make(chan int), make(chan int)38    go Walk(t1, ch1)39    go Walk(t2, ch2)40    for {41        if a != b || ok1 != ok2 {42        }43        if !ok1 {44        }45    }46}47func main() {48    fmt.Println(Same(tree.New(1), tree.New(1)))49    fmt.Println(Same(tree.New(1), tree.New(2

Using AI Code Generation

1import (2func main() {3	browser := rod.New().MustConnect()4	fmt.Println(page.MustPrevious().MustTitle())5}6import (7func main() {8	browser := rod.New().MustConnect()9	fmt.Println(page.MustBrowser().MustPages())10}11[rod.Page(0xc0000b2000) rod.Page(0xc0000b4000)]12import (13func main() {14	browser := rod.New().MustConnect()15	fmt.Println(page.MustElement("input[name='q']").MustText())16}17import (18func main() {19	browser := rod.New().MustConnect()20	fmt.Println(page.MustElements("input[name='q']").MustText())21}22import (23func main() {24	browser := rod.New().MustConnect()25	fmt.Println(page.MustEval(`() => {26		return {27		}28	}`))29}

Using AI Code Generation

1import (2func main() {3	browser := rod.New().Connect()4	defer browser.Close()5	page.Element("#lst-ib").Press("Shift").Type("puppeteer").Release("Shift")6	page.Element("#tsf > div.tsf-p > div.jsb > center > input[type='submit']:nth-child(1)").Click()7	page.Element("h3 > a").Click()8	page.WaitLoad()9	fmt.Println(page.Title())10}

Using AI Code Generation

1import (2func main() {3	browser := rod.New().Connect()4	defer browser.Close()5	defer page.Close()6	page.Element("input[name=q]").Input("rod")7	page.Element("input[type=submit]").Click()8	fmt.Println(page.Element("#b_results").MustText())9	fmt.Println(page.MustElement("h2").MustPrevious().MustText

Using AI Code Generation

1import (2func main() {3	browser := rod.New().MustConnect()4	fmt.Println(page.MustElement("title").MustText())5	fmt.Println(page.MustElement("title").MustPrevious().MustText())6	fmt.Println(page.MustElement("title").MustPrevious().MustPrevious().MustText())7}8import (9func main() {10	browser := rod.New().MustConnect()11	fmt.Println(page.MustElement("title").MustText())12	fmt.Println(page.MustElement("title").MustPreviousAll().MustText())13	fmt.Println(page.MustElement("title").MustPreviousAll().MustText())14}15import (16func main() {17	browser := rod.New().MustConnect()18	fmt.Println(page.MustElement("title").MustText())19	fmt.Println(page.MustElement("title").MustNext().MustText())20	fmt.Println(page.MustElement("title").MustNext().MustNext().MustText())21}22import (23func main() {24	browser := rod.New().MustConnect()

Using AI Code Generation

1import "fmt"2type Rod struct {3}4func (r Rod) Previous() {5fmt.Println("Previous method of Rod class")6}7func main() {8r.Previous()9}10import "fmt"11type Rod struct {12}13func (r Rod) Next() {14fmt.Println("Next method of Rod class")15}16func main() {17r.Next()18}19import "fmt"20type Rod struct {21}22func (r Rod) Previous() {23fmt.Println("Previous method of Rod class")24}25func main() {26r.Previous()27}28import "fmt"29type Rod struct {30}31func (r Rod) Next() {32fmt.Println("Next method of Rod class")33}34func main() {35r.Next()36}37import "fmt"38type Rod struct {39}40func (r Rod) Previous() {41fmt.Println("Previous method of Rod class")42}43func main() {44r.Previous()45}46import "fmt"47type Rod struct {48}49func (r Rod) Next() {50fmt.Println("Next method of Rod class")51}52func main() {53r.Next()54}55import "fmt"56type Rod struct {57}58func (r Rod) Previous() {59fmt.Println("Previous method of Rod class")60}61func main() {62r.Previous()63}64import "fmt"65type Rod struct {66}67func (r Rod) Next() {68fmt.Println("Next method of Rod class")69}70func main() {71r.Next()72}

Using AI Code Generation

1import (2func main() {3	rod := new(Rod)4	rod.Previous()5	fmt.Println(rod.Result)6}7import (8func main() {9	rod := new(Rod)10	rod.Next()11	fmt.Println(rod.Result)12}13import (14func main() {15	rod := new(Rod)16	rod.Next()17	fmt.Println(rod.Result)18}19import (20func main() {21	rod := new(Rod)22	rod.Next()23	fmt.Println(rod.Result)24}25import (26func main() {27	rod := new(Rod)28	rod.Next()29	fmt.Println(rod.Result)30}

Using AI Code Generation

1func main() {2	rod1 := rod.NewRod(1, 2)3	fmt.Println(rod1)4	fmt.Println(rod1.Previous())5}6Rod{1 2}7Rod{0 0}8NewRod(int, int) rod9Previous() rod10Next() rod11String() string12import "fmt"13type Rod struct {14}15func NewRod(x, y int) Rod {16	return Rod{x, y}17}18func (r Rod) Previous() Rod {19	return Rod{r.X - 1, r.Y - 1}20}21func (r Rod) Next() Rod {22	return Rod{r.X + 1, r.Y + 1}23}24func (r Rod) String() string {25	return fmt.Sprintf("Rod{%d %d}", r.X, r.Y)26}

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