Best JavaScript code snippet using testcafe
index.js
Source:index.js  
...1391    function getOwnFirstVisibleNode(el) {1392        return find(el.childNodes, function (node) { return isVisibleTextNode(node) ||1393            !isSkippableNode(node) && getOwnFirstVisibleNode(node); });1394    }1395    function getOwnPreviousVisibleSibling(el) {1396        var sibling = null;1397        var current = el;1398        while (!sibling) {1399            current = current.previousSibling;1400            if (!current)1401                break;1402            else if (!isSkippableNode(current) && !isInvisibleTextNode(current)) {1403                sibling = current;1404                break;1405            }1406        }1407        return sibling;1408    }1409    function isVisibleNode(node) {1410        return isTextNode(node) || isElementNode(node) && isElementVisible(node);1411    }1412    function getVisibleChildren(node) {1413        return filter(node.childNodes, isVisibleNode);1414    }1415    function hasVisibleChildren(node) {1416        return some(node.childNodes, isVisibleNode);1417    }1418    function hasSelectableChildren(node) {1419        return some(node.childNodes, function (child) { return isNodeSelectable(child, true); });1420    }1421    //NOTE: before such elements (like div or p) adds line breaks before and after it1422    // (except line break before first visible element in contentEditable parent)1423    // this line breaks is not contained in node values1424    //so we should take it into account manually1425    function isNodeBlockWithBreakLine(parent, node) {1426        var parentFirstVisibleChild = null;1427        var firstVisibleChild = null;1428        if (isShadowUIElement(parent) || isShadowUIElement(node))1429            return false;1430        if (!isTheSameNode(node, parent) && getChildNodesLength(node.childNodes) &&1431            /div|p/.test(getTagName(node))) {1432            parentFirstVisibleChild = getOwnFirstVisibleNode(parent);1433            if (!parentFirstVisibleChild || isTheSameNode(node, parentFirstVisibleChild))1434                return false;1435            firstVisibleChild = getFirstVisibleTextNode(parentFirstVisibleChild);1436            if (!firstVisibleChild || isTheSameNode(node, firstVisibleChild))1437                return false;1438            return getOwnFirstVisibleTextNode(node);1439        }1440        return false;1441    }1442    function isNodeAfterNodeBlockWithBreakLine(parent, node) {1443        var isRenderedNode$1 = isRenderedNode(node);1444        var parentFirstVisibleChild = null;1445        var firstVisibleChild = null;1446        var previousSibling = null;1447        if (isShadowUIElement(parent) || isShadowUIElement(node))1448            return false;1449        if (!isTheSameNode(node, parent) &&1450            (isRenderedNode$1 && isElementNode(node) && getChildNodesLength(node.childNodes) &&1451                !/div|p/.test(getTagName(node)) ||1452                isVisibleTextNode(node) && !isTheSameNode(node, parent) && node.nodeValue.length)) {1453            if (isRenderedNode$1 && isElementNode(node)) {1454                parentFirstVisibleChild = getOwnFirstVisibleNode(parent);1455                if (!parentFirstVisibleChild || isTheSameNode(node, parentFirstVisibleChild))1456                    return false;1457                firstVisibleChild = getFirstVisibleTextNode(parentFirstVisibleChild);1458                if (!firstVisibleChild || isTheSameNode(node, firstVisibleChild))1459                    return false;1460            }1461            previousSibling = getOwnPreviousVisibleSibling(node);1462            return previousSibling && isElementNode(previousSibling) &&1463                /div|p/.test(getTagName(previousSibling)) && getOwnFirstVisibleTextNode(previousSibling);1464        }1465        return false;1466    }1467    function getFirstTextNode(el, onlyVisible) {1468        var children = el.childNodes;1469        var childrenLength = getChildNodesLength(children);1470        var curNode = null;1471        var child = null;1472        var isNotContentEditableElement = null;1473        var checkTextNode = onlyVisible ? isVisibleTextNode : isTextNode;1474        if (!childrenLength && checkTextNode(el))1475            return el;...content_editable_helper.js
Source:content_editable_helper.js  
...31            }32        });33        return child;34    }35    function getOwnPreviousVisibleSibling(el) {36        var sibling = null,37            current = el;38        while (!sibling) {39            current = current.previousSibling;40            if (!current)41                break;42            else if (Util.isRenderedNode(current) && !exports.isInvisibleTextNode(current)) {43                sibling = current;44                break;45            }46        }47        return sibling;48    }49    //NOTE: before such elements (like div or p) adds line breaks before and after it50    // (except line break before first visible element in contentEditable parent)51    // this line breaks is not contained in node values52    //so we should take it into account manually53    function isNodeBlockWithBreakLine(parent, node) {54        var parentFirstVisibleChild = null,55            firstVisibleChild = null;56        if (!Util.isTheSameNode(node, parent) && node.childNodes.length && /div|p/.test(node.tagName.toLowerCase())) {57            parentFirstVisibleChild = getOwnFirstVisibleNode(parent);58            if (!parentFirstVisibleChild || Util.isTheSameNode(node, parentFirstVisibleChild))59                return false;60            firstVisibleChild = exports.getFirstVisibleTextNode(parentFirstVisibleChild);61            if (!firstVisibleChild || Util.isTheSameNode(node, firstVisibleChild))62                return false;63            return getOwnFirstVisibleTextNode(node);64        }65        return false;66    }67    function isNodeAfterNodeBlockWithBreakLine(parent, node) {68        var isRenderedNode = Util.isRenderedNode(node),69            parentFirstVisibleChild = null,70            firstVisibleChild = null,71            previousSibling = null;72        if (!Util.isTheSameNode(node, parent) &&73            ((isRenderedNode && node.nodeType === 1 && node.childNodes.length && !/div|p/.test(node.tagName.toLowerCase())) ||74             (node.nodeType === 3 && !Util.isTheSameNode(node, parent) && node.nodeValue.length && !exports.isInvisibleTextNode(node)))) {75            if (isRenderedNode && node.nodeType === 1) {76                parentFirstVisibleChild = getOwnFirstVisibleNode(parent);77                if (!parentFirstVisibleChild || Util.isTheSameNode(node, parentFirstVisibleChild))78                    return false;79                firstVisibleChild = exports.getFirstVisibleTextNode(parentFirstVisibleChild);80                if (!firstVisibleChild || Util.isTheSameNode(node, firstVisibleChild))81                    return false;82            }83            previousSibling = getOwnPreviousVisibleSibling(node);84            return (previousSibling && previousSibling.nodeType === 1 &&85                    /div|p/.test(previousSibling.tagName.toLowerCase()) && getOwnFirstVisibleTextNode(previousSibling));86        }87        return false;88    }89    exports.getFirstVisibleTextNode = function (el) {90        var childrenArray = $.makeArray(el.childNodes),91            element = null;92        if (!childrenArray.length && el.nodeType === 3 && !exports.isInvisibleTextNode(el))93            return el;94        $.each(childrenArray, function (index, value) {95            if (value.nodeType === 3 && !exports.isInvisibleTextNode(value)) {96                element = value;97                return false;...content-editable.js
Source:content-editable.js  
...69            firstVisibleChild = getFirstVisibleTextNode(parentFirstVisibleChild);70            if (!firstVisibleChild || domUtils.isTheSameNode(node, firstVisibleChild))71                return false;72        }73        previousSibling = getOwnPreviousVisibleSibling(node);74        return previousSibling && domUtils.isElementNode(previousSibling) &&75               /div|p/.test(domUtils.getTagName(previousSibling)) && getOwnFirstVisibleTextNode(previousSibling);76    }77    return false;78}79export function getFirstVisibleTextNode (el) {80    var children                    = el.childNodes;81    var childrenLength              = children.length;82    var curNode                     = null;83    var child                       = null;84    var isNotContentEditableElement = null;85    if (!childrenLength && isVisibleTextNode(el))86        return el;87    for (var i = 0; i < childrenLength; i++) {...Using AI Code Generation
1import { Selector } from 'testcafe';2test('My test', async t => {3    const getOwnPreviousVisibleSibling = Selector(() => {4        return document.getElementById('preferred-interface').previousElementSibling;5    });6        .click(getOwnPreviousVisibleSibling)7        .expect(getOwnPreviousVisibleSibling.checked).notOk();8});9import { Selector } from 'testcafe';10test('My test', async t => {11    const getOwnPreviousVisibleSibling = Selector(() => {12        return document.getElementById('preferred-interface').previousElementSibling;13    });14        .click(getOwnPreviousVisibleSibling)15        .expect(getOwnPreviousVisibleSibling.checked).notOk();16});17import { Selector } from 'testcafe';18test('My test', async t => {19    const getOwnPreviousVisibleSibling = Selector(() => {20        return document.getElementById('preferred-interface').previousElementSibling;21    });22        .click(getOwnPreviousVisibleSibling)23        .expect(getOwnPreviousVisibleSibling.checked).notOk();24});25import { Selector } from 'testcafe';26test('My test', async t => {27    const getOwnPreviousVisibleSibling = Selector(() => {28        return document.getElementById('preferred-interface').previousElementSibling;29    });30        .click(getOwnPreviousVisibleSibling)31        .expect(getOwnPreviousVisibleSibling.checked).notOk();32});33import { Selector } from 'testcafe';34test('My test', async t => {Using AI Code Generation
1import { Selector } from 'testcafe';2test('My Test', async t => {3    const getOwnPreviousVisibleSibling = Selector(() => {4        return document.querySelector('#tried-test-cafe').previousElementSibling;5    }, { dependencies: { previousElementSibling: 'previousElementSibling' } });6        .expect(getOwnPreviousVisibleSibling().id).eql('populate');7});8var previousElementSibling = element.previousElementSibling;9var x = document.getElementsByTagName("LI")[0].previousElementSibling;10console.log(x);11var x = document.getElementsByTagName("P")[0].previousElementSibling;12console.log(x);13var x = document.getElementsByTagName("TD")[0].previousElementSibling;14console.log(x);15Specification Status Comment ECMAScript 6th Edition (ECMA-262)16Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari Basic support (Yes) 3.5 (1.9.1) 9 10.5 417Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Basic support (Yes) 4.0 (2.0) ? ? ? Notes Full support 4.0 (2.0) ? ? ?18Element.hasChildNodes()19Element.contains()Using AI Code Generation
1import { Selector } from 'testcafe';2test('Getting the previous visible sibling', async t => {3    const osOption = Selector('#windows');4    const previousSibling = osOption.getOwnPreviousVisibleSibling();5        .expect(previousSibling.value).eql('Linux')6        .expect(previousSibling.checked).notOk();7});8import { Selector } from 'testcafe';9test('Getting the previous sibling', async t => {10    const osOption = Selector('#windows');11    const previousSibling = osOption.getOwnPreviousSibling();12        .expect(previousSibling.value).eql('Linux')13        .expect(previousSibling.checked).notOk();14});15import { Selector } from 'testcafe';16test('Getting the previous sibling', async t => {17    const osOption = Selector('#windows');18    const previousSibling = osOption.getPreviousSibling();19        .expect(previousSibling.value).eql('Linux')20        .expect(previousSibling.checked).notOk();21});22import { Selector } from 'testcafe';23test('Getting the previous visible sibling', async t => {24    const osOption = Selector('#windows');25    const previousSibling = osOption.getPreviousVisibleSibling();26        .expect(previousSibling.value).eql('Linux')27        .expect(previousSibling.checked).notOk();28});29import { Selector } from 'testcafe';30test('Getting the sibling', async t => {31    const osOption = Selector('#Using AI Code Generation
1import { Selector } from 'testcafe';2test('My Test', async t => {3    const developerNameInput = Selector('#developer-name');4    const windowsRadioButton = Selector('#windows');5    const submitButton = Selector('#submit-button');6    const articleHeader = Selector('.result-content').find('h1');7        .typeText(developerNameInput, 'Peter')8        .click(windowsRadioButton)9        .click(submitButton)10        .expect(articleHeader.innerText).eql('Thank you, Peter!');11});12import { Selector } from 'testcafe';13test('My Test', async t => {14    const developerNameInput = Selector('#developer-name');15    const windowsRadioButton = Selector('#windows');16    const submitButton = Selector('#submit-button');17    const articleHeader = Selector('.result-content').find('h1');18        .typeText(developerNameInput, 'Peter')19        .click(windowsRadioButton)20        .click(submitButton)21        .expect(articleHeader.innerText).eql('Thank you, Peter!');22});23import { Selector } from 'testcafe';24test('My Test', async t => {25    const developerNameInput = Selector('#developer-name');26    const windowsRadioButton = Selector('#windows');27    const submitButton = Selector('#submit-button');28    const articleHeader = Selector('.result-content').find('h1');29        .typeText(developerNameInput, 'Peter')30        .click(windowsRadioButton)31        .click(submitButton)32        .expect(articleHeader.innerText).eql('Thank you, Peter!');33});34import { Selector } from 'testcafe';35test('My Test', async tUsing AI Code Generation
1import { Selector } from 'testcafe';2test('Getting previous sibling', async t => {3    const osCheckbox = Selector('label').withText('OS').child(0);4    const windowsCheckbox = await osCheckbox.getOwnPreviousVisibleSibling();5        .click(windowsCheckbox)6        .expect(windowsCheckbox.checked).ok();7});Using AI Code Generation
1import { Selector } from 'testcafe';2test('Getting previous visible sibling of an element', async t => {3        .click('#gb_70')4        .typeText('#identifierId', 'testcafe')5        .click('#identifierNext')6        .typeText('#password input', 'testcafe')7        .click('#passwordNext')8        .click(Selector('#gb_71').getOwnPreviousVisibleSibling());9});10import { Selector } from 'testcafe';11test('Getting previous visible sibling of an element', async t => {12        .click('#gb_70')13        .typeText('#identifierId', 'testcafe')14        .click('#identifierNext')15        .typeText('#password input', 'testcafe')16        .click('#passwordNext')17        .click(Selector('#gb_71').getOwnPreviousVisibleSibling());18});19import { Selector } from 'testcafe';20test('Getting previous visible sibling of an element', async t => {21        .click('#gb_70')22        .typeText('#identifierId', 'testcafe')23        .click('#identifierNext')24        .typeText('#password input', 'testcafe')25        .click('#passwordNext')26        .click(Selector('#gb_71').getOwnPreviousVisibleSibling());27});Using AI Code Generation
1import { Selector } from 'testcafe';2test('My first test', async t => {3    const windowsRadioButton = Selector('label').withText('Windows');4    const previousSibling = await windowsRadioButton.getOwnPreviousVisibleSibling();5        .click(previousSibling);6});7import { Selector } from 'testcafe';8test('My first test', async t => {9    const linuxRadioButton = Selector('label').withText('Linux');10    const nextSibling = await linuxRadioButton.getOwnNextVisibleSibling();11        .click(nextSibling);12});13import { Selector } from 'testcafe';14test('My first test', async t => {15    const interfaceSelect = Selector('#preferred-interface');16    const idAttribute = await interfaceSelect.getAttribute('id');17        .expect(idAttribute).eql('preferred-interface');18});19import { Selector } from 'testcafe';20test('My first test', async t => {21    const interfaceSelect = Selector('#preferred-interface');22    const hasId = await interfaceSelect.hasAttribute('id');23        .expect(hasId).ok();24});25import { Selector } from 'testcafe';26test('My first test', async t => {27    const interfaceSelect = Selector('#preferred-interface');28        .expect(interfaceSelect.hasAttribute('multiple')).ok()29        .click(interfaceSelect)30        .removeAttribute(interfaceSelect, 'multiple')31        .expect(interfaceSelect.hasAttribute('multiple')).notOk();32});Using AI Code Generation
1import { Selector } from 'testcafe';2test('My test', async t => {3        .click(Selector('div').withText('First'))4        .click(Selector('div').withText('Second'))5        .click(Selector('div').withText('Third'))6        .click(Selector('div').withText('Fourth'))7        .click(Selector('div').withText('Fifth'))8        .click(Selector('div').withText('Sixth'))9        .click(Selector('div').withText('Seventh'))10        .click(Selector('div').withText('Eighth'))11        .click(Selector('div').withText('Ninth'))12        .click(Selector('div').withText('Tenth'))13        .click(Selector('div').withText('Eleventh'))14        .click(Selector('div').withText('Twelfth'))15        .click(Selector('div').withText('Thirteenth'))16        .click(Selector('div').withText('Fourteenth'))17        .click(Selector('div').withText('Fifteenth'))18        .click(Selector('div').withText('Sixteenth'))19        .click(Selector('div').withText('Seventeenth'))20        .click(Selector('div').withText('Eighteenth'))21        .click(Selector('div').withText('Nineteenth'))22        .click(Selector('div').withText('Twentieth'))23        .click(Selector('div').withText('Twenty First'))24        .click(Selector('div').withText('Twenty Second'))25        .click(Selector('div').withText('Twenty Third'))26        .click(Selector('div').withText('Twenty Fourth'))27        .click(Selector('div').withText('Twenty Fifth'))28        .click(Selector('div').withText('Twenty Sixth'))29        .click(Selector('div').withText('Twenty Seventh'))30        .click(Selector('div').withText('Twenty Eighth'))31        .click(Selector('div').withText('Twenty Ninth'))32        .click(Selector('div').withText('Thirtieth'))33        .click(Selector('div').withText('Thirty First'))Using AI Code Generation
1import { Selector } from 'testcafe';2test('test', async t => {3    const searchBox = Selector('#lst-ib');4    const searchButton = searchBox.getOwnPreviousVisibleSibling();5        .typeText(searchBox, 'test')6        .click(searchButton);7});8        .expect(idAttribute).eql('preferred-interface');9});10import { Selector } from 'testcafe';11test('My first test', async t => {12    const interfaceSelect = Selector('#preferred-interface');13    const hasId = await interfaceSelect.hasAttribute('id');14        .expect(hasId).ok();15});16import { Selector } from 'testcafe';17test('My first test', async t => {18    const interfaceSelect = Selector('#preferred-interface');19        .expect(interfaceSelect.hasAttribute('multiple')).ok()20        .click(interfaceSelect)21        .removeAttribute(interfaceSelect, 'multiple')22        .expect(interfaceSelect.hasAttribute('multiple')).notOk();23});Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
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