Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
We get the ElementNotInteractableException in Selenium if an element is available in DOM but not in a condition to be interacted. Some of the reasons for this exception are −There may be a covering of another element on the element with which we want to interact with. This overspread of an element over the other can be temporary or permanent. To resolve a temporary overspread, we can wait for an expected condition for the element.We can wait for the expected condition of invisibilityOfElementLocated for the overlay element. Or, wait for the expected condition of elementToBeClickable for the element with which ... Read More
We may encounter the error - unable to locate element while working with Selenium webdriver. This leads to NoSuchElementException. This type of exception is thrown when there is no element on the page which matches with the locator value.If error is encountered, we can fix it by the following ways −Check if there is any syntax error in our xpath expression.Add additional expected wait conditions for the element.Use an alternative xpath expression.Exampleimport org.openqa.selenium.By; import org.openqa.selenium.WebDriver; import org.openqa.selenium.WebElement; import org.openqa.selenium.chrome.ChromeDriver; import org.openqa.selenium.support.ui.ExpectedConditions; import org.openqa.selenium.support.ui.WebDriverWait; public class XpathError{ public static void main(String[] args) { System.setProperty("webdriver.chrome.driver", ... Read More
Problem:We are required to write a JavaScript function that takes in the roots of two binary search trees, root1 and root2, as the first and the second argument respectively. The third argument to the function is number, target.Our function should return True if and only if there is a node in the first tree and a node in the second tree whose values sum up to a given integer target, false otherwise.For example, if the input to the function is −const target = 23;BSTsThen the output should be −const output = true;Output Explanation:Because there exists 6 in the first tree ... Read More
There are equivalent methods for waitForVisible/waitForElementPresent in Selenium webdriver. They are a part of the synchronization concept in Selenium.The implicit and explicit waits are the two types of waits in synchronization.The implicit wait is the wait applied to the webdriver for a specified amount of time for all elements. Once this time has elapsed and an element is still not available, an expectation is thrown.Syntaxdriver.manage().timeouts().implicitlyWait(5, TimeUnit.SECONDS);ExampleCode Implementation with implicit waitimport org.openqa.selenium.By; import org.openqa.selenium.WebDriver; import org.openqa.selenium.WebElement; import org.openqa.selenium.chrome.ChromeDriver; import java.util.concurrent.TimeUnit; public class ImplctWait{ public static void main(String[] args) { System.setProperty("webdriver.chrome.driver", ... Read More
We can create a JavaScript Executor for making an element visible in Selenium webdriver. A hidden element has a style attribute whose value set to display: none.For making an element visible on the page we have set the value of style attribute to block/ inline/ flex/ inline-block. Let us see the html code of an element which is visible(style= display: block) −Now on clicking the Hide button, the Hide/Show Example edit box becomes invisible on the page. Let us now see the html code of the Hide/Show Example edit box in hidden state(style= display: none) −JavaScript Executor can make the ... Read More
There are differences between Selenium and Cucumber are listed below −Sr. No.SeleniumCucumber1It is a test automation framework.It is not a test automation framework.2Primarily used for automation testing of front end applications.Primarily used as a tool for behavior driven development.3Can be written in any programming language like Java, Python, Ruby, C#, and so on.Can be written in Gherkin language.4Developed in Java.Developed in Ruby.5Can only be used by users having technical knowledge.Can be used by users without any technical knowledge.6Less readable compared to Cucumber.Easily readable.7Installation is lengthy and complex compared to Cucumber.Installation is easy.8Conditional statements can be incorporated.Conditional statements cannot be incorporated.9Syntax ... Read More
ProblemJavaScript function that takes in a string, str, as the first and the only argument.A duplicate removal consists of choosing two adjacent and equal letters, and removing them.We repeatedly make duplicate removals on string str until we no longer can.And our function should finally return the final string after all such duplicate removals have been made.For example, if the input to the function is −const str = 'kllkmk';Then the output should be −const output = 'mk';Output Explanation:Firstly, we will remove ‘ll’ from the string to reduce it to ‘kkmk’, then after removing ‘kk’, we will return the new string.ExampleThe code ... Read More
ProblemWe are required to write a JavaScript function that takes in the head of the linked list as the first and the only argument.This linkedlist contains numerical data. Each node in the list may have a next larger value: for node_i, next_larger(node_i) is the node_j.val such that j > i, node_j.val > node_i.val, and j is the smallest possible choice. If such a j does not exist, the next larger value is 0.Our function should prepare and return an array in which the corresponding element is the next greater element for the element in the list.For example, if the list ... Read More
The differences between RSpec and Cucumber are listed below −Sr. No.RSpecCucumber1A testing framework which gives the option to build and execute tests.A tool which is used to create test cases in plain English text.2Mainly used for integration and unit testing.Mainly used for user acceptance testing.3Utilized for Test Driven Development by developers and for Behavior Driven Development by testers.Utilized for Behavior Driven Development.4Narrates step from a business specification using the Describe, Context and It blocks.Narrates step from a business specification with the Given, When, Then, And, But, and so on keywords.5Code for implementation of a step is available within the Describe, ... Read More
ProblemJavaScript function that takes in an array of Integers, arr, as the first and the only argument.Our function should pick an index pair (i, j) such that (arr[i] + arr[j]) + (i - j) is maximum amongst all index pairs in the array. Our function should then return the maximum value.For example, if the input to the function is −const arr = [8, 1, 5, 2, 6];Then the output should be −const output = 11;Output ExplanationBecause if we choose i = 0 and j = 2 then the value will be −(8 + 5) + (0 - 2) = 11Which ... Read More