Best JavaScript code snippet using playwright-internal
traverse.js
Source:traverse.js  
...106    type: 'block',107    attr: {108      [prefix + 'if']: genCode(conditionalExprNode.test)109    },110    children: normalizeChildren(111      traverseExpr(conditionalExprNode.consequent, state)112    )113  }]114  if (115    !(116      t.isCallExpression(conditionalExprNode.alternate) &&117      t.isIdentifier(conditionalExprNode.alternate.callee) &&118      conditionalExprNode.alternate.callee.name === '_e'119    )120  ) {121    // test?_c():_e()122    ret.push({123      type: 'block',124      attr: {125        [prefix + 'else']: ''126      },127      children: normalizeChildren(128        traverseExpr(conditionalExprNode.alternate, state)129      )130    })131  }132  return ret133}134135function traverseCreateElement (callExprNode, state) {136  const args = callExprNode.arguments137  const tagNode = args[0]138  if (!t.isStringLiteral(tagNode)) {139    throw new Error(`æä¸æ¯æå¨æç»ä»¶[${tagNode.name}]`)140  }141142  const node = {143    type: tagNode.value,144    attr: {},145    children: []146  }147148  if (args.length < 2) {149    return node150  }151152  const dataNodeOrChildNodes = args[1]153  if (t.isObjectExpression(dataNodeOrChildNodes)) {154    Object.assign(node.attr, traverseDataNode(dataNodeOrChildNodes, state, node))155  } else {156    node.children = normalizeChildren(traverseExpr(dataNodeOrChildNodes, state))157  }158  if (args.length < 3) {159    return node160  }161  const childNodes = args[2]162  if (!t.isNumericLiteral(childNodes)) {163    if (node.children && node.children.length) {164      node.children = node.children.concat(normalizeChildren(traverseExpr(childNodes, state)))165    } else {166      node.children = normalizeChildren(traverseExpr(childNodes, state))167    }168  }169  return node170}171172function traverseDataNode (dataNode, state, node) {173  const ret = {}174  const specialEvents = state.options.platform.specialEvents[node.type] || {}175  const specialEventNames = Object.keys(specialEvents)176  dataNode.properties.forEach(property => {177    switch (property.key.name) {178      case 'slot':179        ret['slot'] = genCode(property.value)180        break181      case 'scopedSlots': // Vue 2.6182        property.value.$node = node183        node.children = normalizeChildren(traverseExpr(property.value, state))184        break185      case 'attrs':186      case 'domProps':187      case 'on':188      case 'nativeOn':189        property.value.properties.forEach(attrProperty => {190          if (attrProperty.key.value === 'vue-id') { // initParent æ¶åå¤ç vue-id191            node.$vueId = attrProperty.value192            ret[attrProperty.key.value] = genCode(attrProperty.value)193          } else {194            if (specialEventNames.includes(attrProperty.key.value)) {195              if (t.isIdentifier(attrProperty.value)) {196                ret[specialEvents[attrProperty.key.value]] = attrProperty.value.name197              }198            } else {199              ret[attrProperty.key.value] = genCode(attrProperty.value)200            }201          }202        })203        break204      case 'class':205      case 'staticClass':206        ret['class'] = genCode(property.value)207        break208      case 'style':209      case 'staticStyle':210        ret['style'] = genCode(property.value)211        break212      case 'directives':213        property.value.elements.find(objectExpression => {214          if (t.isObjectExpression(objectExpression)) {215            const nameProperty = objectExpression.properties[0]216            const isShowDir =217              nameProperty &&218              nameProperty.key.name === 'name' &&219              t.isStringLiteral(nameProperty.value) &&220              nameProperty.value.value === 'show'221            if (isShowDir) {222              objectExpression.properties.find(valueProperty => {223                const isValue = valueProperty.key.name === 'value'224                if (isValue) {225                  ret['hidden'] = genCode(valueProperty.value, false, true)226                }227                return isValue228              })229            }230            return isShowDir231          }232        })233        break234    }235  })236  return ret237}238239function normalizeChildren (nodes) {240  if (!Array.isArray(nodes)) {241    nodes = [nodes]242  }243  return nodes.filter(node => {244    if (typeof node === 'string' && !node.trim()) {245      return false246    }247    return true248  })249}250251function traverseArrayExpression (arrayExprNodes, state) {252  return arrayExprNodes.elements.reduce((nodes, exprNode) => {253    return nodes.concat(traverseExpr(exprNode, state))254  }, [])255}256257function genSlotNode (slotName, slotNode, fallbackNodes, state) {258  if (!fallbackNodes || t.isNullLiteral(fallbackNodes)) {259    return slotNode260  }261  const prefix = state.options.platform.prefix262  return [{263    type: 'block',264    attr: {265      [prefix + 'if']: '{{$slots.' + slotName + '}}'266    },267    children: [slotNode]268  }, {269    type: 'block',270    attr: {271      [prefix + 'else']: ''272    },273    children: normalizeChildren(274      traverseExpr(fallbackNodes, state)275    )276  }]277}278279function traverseRenderSlot (callExprNode, state) {280  if (!t.isStringLiteral(callExprNode.arguments[0])) {281    state.errors.add(`v-slot 䏿¯æå¨æææ§½å`)282    return283  }284285  const slotName = callExprNode.arguments[0].value286287  let deleteSlotName = false // æ è®°æ¯å¦ç»ä»¶ slot æå¨æå®äº name="default"288  if (callExprNode.arguments.length > 2) { // ä½ç¨åææ§½289    const props = {}290    callExprNode.arguments[2].properties.forEach(property => {291      props[property.key.value] = genCode(property.value)292    })293    deleteSlotName = props['SLOT_DEFAULT'] && Object.keys(props).length === 1294    if (!deleteSlotName) {295      delete props['SLOT_DEFAULT']296      return genSlotNode(297        slotName,298        state.options.platform.createScopedSlots(slotName, props, state),299        callExprNode.arguments[1],300        state301      )302    }303  }304305  const node = {306    type: 'slot',307    attr: {308      name: slotName309    },310    children: []311  }312313  if (deleteSlotName) {314    delete node.attr.name315  }316317  return genSlotNode(slotName, node, callExprNode.arguments[1], state)318}319320function traverseResolveScopedSlots (callExprNode, state) {321  return callExprNode.arguments[0].elements.map(slotNode => {322    let keyProperty = false323    let fnProperty = false324    let proxyProperty = false325    slotNode.properties.forEach(property => {326      switch (property.key.name) {327        case 'key':328          keyProperty = property329          break330        case 'fn':331          fnProperty = property332          break333        case 'proxy':334          proxyProperty = property335      }336    })337    const slotName = keyProperty.value.value338    const returnExprNodes = fnProperty.value.body.body[0].argument339    if (!proxyProperty) {340      const resourcePath = state.options.resourcePath341      const ownerName = path.basename(resourcePath, path.extname(resourcePath))342343      const parentNode = callExprNode.$node344      const parentName = parentNode.type345346      const paramExprNode = fnProperty.value.params[0]347      return state.options.platform.resolveScopedSlots(348        slotName, {349          genCode,350          generate,351          ownerName,352          parentName,353          parentNode,354          resourcePath,355          paramExprNode,356          returnExprNodes,357          traverseExpr,358          normalizeChildren359        },360        state361      )362    }363    const node = {364      type: 'view',365      attr: {366        slot: slotName367      },368      children: normalizeChildren(traverseExpr(returnExprNodes, state))369    }370    return node371  })372}373374function traverseRenderList (callExprNode, state) {375  const params = callExprNode.arguments[1].params376  const forItem = params.length > 0 ? params[0].name : 'item'377  const forIndex = params.length > 1 ? params[1].name : ''378379  const forReturnStatementArgument =380    callExprNode.arguments[1].body.body[0].argument381382  const forKey = traverseKey(forReturnStatementArgument, state)383384  const prefix = state.options.platform.prefix385386  const attr = {387    [prefix + 'for']: genCode(callExprNode.arguments[0]),388    [prefix + 'for-item']: forItem389  }390391  if (forIndex) {392    attr[prefix + 'for-index'] = forIndex393  }394395  if (forKey) {396    const key = getForKey(forKey, forIndex, state)397    if (key) {398      attr[prefix + 'key'] = key399    }400  }401402  return {403    type: 'block',404    attr,405    children: normalizeChildren(traverseExpr(forReturnStatementArgument, state))406  }407}408409function getLeftStringLiteral (expr) {410  if (t.isBinaryExpression(expr) && !expr.$toString) {411    return getLeftStringLiteral(expr.left)412  } else if (t.isStringLiteral(expr)) {413    return expr414  }415}416417function trim (text, type) {418  // TODO ä¿çæ¢è¡ç¬¦ï¼419  if (type === 'left') {
...Table.js
Source:Table.js  
...33    </td>34  );35};36const TableRow = ({ className, children, ...rest }) => {37  const cells = normalizeChildren(children).filter(item => item.type && item.type.name && TableCell.name === item.type.name);38  return (39    <tr 40      className={className}41      style={combineStyles(rest, rest.style)}42      {...omitProps(rest)}43    >44      {cells}45    </tr>46  );47};48const TableHead = ({ className, children, ...rest }) => {49  const headItems = normalizeChildren(children).filter(item => item.type && item.type.name && TableRow.name === item.type.name);50  return (51    <thead 52      className={className}53      style={combineStyles(rest, rest.style)}54      {...omitProps(rest)}55    >56      {headItems}57    </thead>58  );59};60const TableBody = ({ className, children, ...rest }) => {61  const bodyItems = normalizeChildren(children).filter(item => item.type && item.type.name && TableRow.name === item.type.name);62  return (63    <tbody 64      className={className}65      style={combineStyles(rest, rest.style)}66      {...omitProps(rest)}67    >68      {bodyItems}69    </tbody>70  );71};72const Table = ({73  tableStyle = 'none',74  className,75  children,76  ...rest77}) => {78  const tableItems = normalizeChildren(children).filter(item => item.type && item.type.name && (TableHead.name === item.type.name || TableBody.name === item.type.name || TableCaption.name === item.type.name));79  let classNames = [tableStyle !== 'none' ? tableStyle : '', className];80  return (81    <table 82      className={combineClassNames(classNames)}83      style={combineStyles(rest, rest.style)}84      {...omitProps(rest)}85    >86      {tableItems}87    </table>88  );89};...test-normalizeChildren.js
Source:test-normalizeChildren.js  
2var o = require("ospec")3var Vnode = require("../lib/vnode")4o.spec("normalizeChildren", function() {5	o("normalizes arrays into fragments", function() {6		var children = Vnode.normalizeChildren([[]])7		o(children[0].tag).equals("[")8		o(children[0].children.length).equals(0)9	})10	o("normalizes strings into text nodes", function() {11		var children = Vnode.normalizeChildren(["a"])12		o(children[0].tag).equals("#")13		o(children[0].children).equals("a")14	})15	o("normalizes `false` values into `null`s", function() {16		var children = Vnode.normalizeChildren([false])17		o(children[0]).equals(null)18	})19	o("allows all keys", function() {20		var children = Vnode.normalizeChildren([21			{key: 1},22			{key: 2},23		])24		o(children).deepEquals([{key: 1}, {key: 2}])25	})26	o("allows no keys", function() {27		var children = Vnode.normalizeChildren([28			{data: 1},29			{data: 2},30		])31		o(children).deepEquals([{data: 1}, {data: 2}])32	})33	o("disallows mixed keys, starting with key", function() {34		o(function() {35			Vnode.normalizeChildren([36				{key: 1},37				{data: 2},38			])39		}).throws(TypeError)40	})41	o("disallows mixed keys, starting with no key", function() {42		o(function() {43			Vnode.normalizeChildren([44				{data: 1},45				{key: 2},46			])47		}).throws(TypeError)48	})...normalizeChildren.js
Source:normalizeChildren.js  
2Object.defineProperty(exports, "__esModule", { value: true });3exports.normalizeChildren = void 0;4const TextNode_1 = require("../TextNode");5const constants_1 = require("../../constants");6function normalizeChildren(children) {7    const result = [];8    for (const child of children) {9        if (child && typeof child !== 'boolean') {10            if (typeof child === 'string' || typeof child === 'number') {11                result.push(new TextNode_1.TextNode(`${child}`));12            }13            else if (Array.isArray(child)) {14                normalizeChildren(child).forEach(normalized => result.push(normalized));15            }16            else if (child.type === constants_1.NODE_TYPE.ELEMENT || child.type === constants_1.NODE_TYPE.TEXT || child.type === constants_1.NODE_TYPE.COMPONENT) {17                result.push(child);18            }19            else {20                throw new TypeError(`Unrecognized node type: ${typeof child}`);21            }22        }23    }24    return result;25}...tree.controller.js
Source:tree.controller.js  
...13            self.rootTreeNodes = normalizeTreeNodeData(options.data, options);14            self.nodeTemplateUrl = options.nodeTemplateUrl || "{themed}/widget/default-tree-node-tpl.html";15        }16        function normalizeTreeNodeData(data){17            normalizeChildren(data);18            return data;19            function normalizeChildren(children){20                for(var i =0;i<children.length; i++){21                    var node = children[i];22                    node.hasChildren = isArray(node.children) && node.children.length > 0;23                    if(node.hasChildren){24                        normalizeChildren(node.children);25                    }26                }27            }28        }29    }...create-element.js
Source:create-element.js  
...19    normalizationType = children20    children = data21    data = undefined22  }23  args[childrenIndex] = normalizeChildren(children)24}25function normalizeChildren (children = []) {26  let res = []27  for (let i = 0, len = children.length; i < len; i++) {28    const child = children[i]29    if (Array.isArray(child)) {30      res = res.concat(normalizeChildren(child))31    } else if (child) {32      res.push(child)33    }34  }35  return res...vnode.js
Source:vnode.js  
2function Vnode(tag, key, attrs, children, text, dom) {3	return {tag: tag, key: key, attrs: attrs, children: children, text: text, dom: dom, domSize: undefined, state: undefined, _state: undefined, events: undefined, instance: undefined, skip: false}4}5Vnode.normalize = function(node) {6	if (Array.isArray(node)) return Vnode("[", undefined, undefined, Vnode.normalizeChildren(node), undefined, undefined)7	if (node != null && typeof node !== "object") return Vnode("#", undefined, undefined, node === false ? "" : node, undefined, undefined)8	return node9}10Vnode.normalizeChildren = function normalizeChildren(children) {11	for (var i = 0; i < children.length; i++) {12		children[i] = Vnode.normalize(children[i])13	}14	return children15}...26test-normalizeChildren.js
Source:26test-normalizeChildren.js  
2var o = require("../../ospec/ospec")3var Vnode = require("../../render/vnode")4o.spec("normalizeChildren", function() {5	o("normalizes arrays into fragments", function() {6		var children = Vnode.normalizeChildren([[]])7		o(children[0].tag).equals("[")8		o(children[0].children.length).equals(0)9	})10	o("normalizes strings into text nodes", function() {11		var children = Vnode.normalizeChildren(["a"])12		o(children[0].tag).equals("#")13		o(children[0].children).equals("a")14	})15	o("normalizes `false` values into empty string text nodes", function() {16		var children = Vnode.normalizeChildren([false])17		o(children[0].tag).equals("#")18		o(children[0].children).equals("")19	})...Using AI Code Generation
1const { normalizeChildren } = require('playwright/lib/server/frames');2const { ElementHandle } = require('playwright/lib/server/dom');3const { Page } = require('playwright/lib/server/page');4const { Frame } = require('playwright/lib/server/frames');5const elementHandle = new ElementHandle(new Page(new Frame(null, null)), null, null);6const children = [1, 2, 3];7console.log(normalizeChildren(elementHandle, children));Using AI Code Generation
1const { normalizeChildren } = require('playwright/lib/server/dom.js');2const { parseFragment } = require('playwright/lib/server/dom.js');3const { parseDocument } = require('playwright/lib/server/dom.js');4const { serializeNode } = require('playwright/lib/server/dom.js');5</html>`;6const document = parseDocument(html);7const node = document.querySelector('#test4');8const children = node.childNodes;9const normalized = normalizeChildren(children);10const serialized = serializedNode(normalized);11console.log(serialized);12const { normalizeChildren } = require('playwright/lib/server/dom.js');13const { parseFragment } = require('playwright/lib/server/dom.js');14const { parseDocument } = require('playwright/lib/server/dom.js');15const { serializeNode } = require('playwright/lib/server/dom.js');Using AI Code Generation
1const { normalizeChildren } = require('playwright/lib/client/selectorEngine');2const { parseSelector } = require('playwright/lib/client/selectorParser');3const { parseSelectorToSteps } = require('playwright/lib/client/selectorParser');4const { Selector } = require('playwright/lib/client/selector');5const { parseSelectorToSteps } = require('playwright/lib/client/selectorParser');6const { normalizeChildren } = require('playwright/lib/client/selectorEngine');7const { parseSelector } = require('playwright/lib/client/selectorParser');8const { parseSelectorToSteps } = require('playwright/lib/client/selectorParser');9const { Selector } = require('playwright/lib/client/selector');10const { parseSelectorToSteps } = require('playwright/lib/client/selectorParser');11const { normalizeChildren } = require('playwright/lib/client/selectorEngine');12const { parseSelector } = require('playwright/lib/client/selectorParser');13const { parseSelectorToSteps } = require('playwright/lib/client/selectorParser');14const { Selector } = require('playwright/lib/client/selector');15const { parseSelectorToSteps } = require('playwright/lib/client/selectorParser');16const { normalizeChildren } = require('playwright/lib/client/selectorEngine');17const { parseSelector } = require('playwright/lib/client/selectorParser');18const { parseSelectorToSteps } = require('playwright/lib/client/selectorParser');19const { Selector } = require('playwright/lib/client/selector');20const { parseSelectorToSteps } = require('playwright/lib/client/selectorParser');21const { normalizeChildren } = require('playwright/lib/client/selectorEngine');22const { parseSelector } = require('playwright/lib/client/selectorParser');23const { parseSelectorToSteps } = require('playwright/lib/client/selectorParser');24const { Selector } = require('playwright/lib/client/selector');25const { parseSelectorToSteps } = require('playwright/lib/client/selectorParser');26const { normalizeChildren } = require('playwright/lib/client/selectorEngine');27const { parseSelector } =Using AI Code Generation
1const { normalizeChildren } = require('playwright/lib/server/dom.js');2const { parseFragment } = require('playwright/lib/server/dom.js');3const { dom } = require('playwright/lib/server/dom.js');4const { ElementHandle } = require('playwright/lib/server/dom.js');5const { JSHandle } = require('playwright/lib/server/dom.js');6const { Frame } = require('playwright/lib/server/dom.js');7const domImpl = new dom.DOMImplementation();8const doc = domImpl.createHTMLDocument('Title');9const fragment = parseFragment(doc, '<div><diUsing AI Code Generation
1const { normalizeChildren } = require('playwright/lib/client/selectorEngine');2const { parseSelector } = require('playwright/lib/client/selectorParser');3const selector = 'css=div >> text=hello';4const parsedSelector = parseSelector(selector);5const normalizedChildren = normalizeChildren(parsedSelector);6console.log(normalizedChildren);7  { name: 'css', body: 'div' },8  { name: 'text', body: 'hello', args: undefined }9const { normalizeChildren } = require('playwright/lib/client/selectorEngine');10const { parseSelector } = require('playwright/lib/client/selectorParser');11const selector = 'css=div >> text=hello';12const parsedSelector = parseSelector(selector);13const normalizedChildren = normalizeChildren(parsedSelector);14console.log(normalizedChildren);15const playwright = require('playwright');16(async () => {17  for (const browserType of ['chromium']) {18    const browser = await playwright[browserType].launch();19    const context = await browser.newContext();20    const page = await context.newPage();21    const elementHandle = await page.$(selector);22    await elementHandle.click();23    await browser.close();24  }25})();Using AI Code Generation
1const { normalizeChildren } = require('playwright/lib/server/dom.js');2const { parse } = require('playwright/lib/server/supplements/utils/parseMarkup.js');3const html = `<div style="color: red">Hello</div><div style="color: blue">World</div>`;4const children = parse(html);5const normalizedChildren = normalizeChildren(children);6console.log(normalizedChildren);7{ style: 'color: red' }8[{ nodeType: 3, nodeName: '#text', nodeValue: 'Hello' }]Using AI Code Generation
1const { normalizeChildren } = require('@playwright/test/lib/test');2const children = normalizeChildren([3  {4    fn: async ({}) => {},5  },6]);7console.log(children);8[ { title: 'test', fn: [AsyncFunction: fn], location: undefined } ]9const { normalizeChildren } = require('@playwright/test/lib/test');10const children = normalizeChildren([11  {12    fn: async ({}) => {},13  },14]);15console.log(children[0].location);16{ file: 'test.js', line: 2, column: 1 }17const { normalizeChildren } = require('@playwright/test/lib/test');18const children = normalizeChildren([19  {20    fn: async ({}) => {},21  },22]);23console.log(children[0].location.file);24const { normalizeChildren } = require('@playwright/test/lib/test');25const children = normalizeChildren([26  {27    fn: async ({}) => {},28  },29]);30console.log(children[0].location.line);31const { normalizeChildren } = require('@playwright/test/lib/test');32const children = normalizeChildren([33  {34    fn: async ({}) => {},Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.waitForSelector('text=Sign in');7  const elementHandle = await page.$('text=Sign in');8  const normalizedChildren = await page.evaluate(element => {9    const { normalizeChildren } = require('playwright-core/lib/server/dom');10    return normalizeChildren(element)11  }, elementHandle);12  console.log(normalizedChildren);13  await browser.close();14})();15[ ElementHandle { _context: [CDPSession], _client: [CDPSession], _page: [Page], _remoteObject: [Object], _disposed: false, _guid: '1.1', _apiName: 'ElementHandle', _initializer: [Object] } ]LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.
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