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- Given the following JavaScript code: elem = document.createElement('span'). Which statement can be used to add the new element to the DOM. document.body.childNode(elem) document.body.appendChild(elem) document.body.parentNode(elem) document.body.node[1]= elemconst addButtonListeners = function () { const buttons = document .querySelectorAll("main")[0] .querySelectorAll(`button`); buttons.forEach((button) => { const postId = button.dataset.postId; button.addEventListener("click", function () { toggleComments(postId); }); }); return buttons;}; This is the current JavaScript I have. I need the function addButtonListeners should add a click listener that calls the toggleComments function to each button element found within the main element. I keep getting the error below. AssertionError: expected undefined to equal trueMFC In the second part of your project, you need to develop a mathematical worksheet graphical interface for elementary school students. The worksheet consists of 10 questions of operations between two random numbers. The operations are defined randomly from the set {+, -, *, /}. The GUI uses a text field to enter the maximum value of random numbers. A button with the caption "Check Answers" should be added to the GUI, and when clicked, a correct icon () should appear in front of the correct answer and an incorrect icon
- JAVAFX: Allowed functions for drawing (Ellipse2D,CubicCurve,QuadCurve,Arc2D) [draw all of these shapes please] ID ended with 0.1 ID ended with 2.3 ID ended with 4,5 ID ended with 6.7In this code segment, root is ____. Please explain. ageValue = IntVar()ageValue.set(100) age = Entry(root, width=5, textvariable=ageValue) The containing element for the widget the name of the event-handling function called when the element is clicked the name of the variable that represent any data entered in the widget is the name of the layout manager used by the widgetImplement the using Windows form App(.NET Framework) c# : 1- creat a Form titled “ Students ” 2- Add text box with max 100 letter, where student can enter his name 3- Add Grade combobox where student can select his grade (A-B-C-D-E-F) 4- Add button “Add”, when clicked the name and grade are added to the data view5- Add button “Stat” when clicked another form appears6- A data grid appears with grade vs count statistic (ex : A ,3 ) (please respond with screenshots )
- Please adjust the calculator so that whenever the person enters their name and enters the input. It says for example “Peter, you are clinically obese” Please also add the findings to the right side of the page next to the BMI calculator.OBAFGKM are the seven categories that are used to describe the absorption lines of a spectrum. Access the Spectral Types Color Slider by opening the Eclipsing Binary Stars section of the NAAP Labs Application and then the Spectral Types of Stars subsection (it is the last simulation on the page) and use it to complete the data table below. Spectral Type: include a letter and a number (no space). Temperature: Kelvin (K) is assumed for Temperature. Color: choose from Blue, White, Orange, or Red (spelling counts!).computer graphics topic A particular text index value is chosen with the functionChoices: setTextIndex()settextindex(ti)SetTextIndex(ti)setTextIndex(ti)
- Add the code to the end of your monitorLevels() method. It must become the last code of monitorLevels(). Study the comments and complete the code # Loop through displayList for i in range(0,len(displayList)): # Test if the first item in the current sub-list contains the text "Price Level" # Tip: Remember that each sub-list is a list within a list (displayList). So you have # to access its items via displayList followed by TWO indexes. . . . # Extract the second item from the current sub-list into a variable called priceLevel priceLevel = . . . # Test if priceLevel is between previousPrice and currentPrice OR # priceLevel == previousPrice OR # priceLevel == currentPrice if( . . . ): # Sound the alarm. Pass in the frequency and duration.…Here's the JavaScript code given. Add some new things to it so that the First Name and Last Name boxes can take only alphabet lettes(not numbers or any symbols) and starts from an uppercase; the user id box must contain only numbers(not alphabet letters). (Look to the picture given) <html><head> <title>Form Validation</title> <script type="text/javascript"> var divs=new Array(); divs[0]="errFirst"; divs[1]="errLast"; divs[2]="errEmail"; divs[3]="errUid"; divs[4]="errPassword"; divs[5]="errConfirm"; function validate() { var inputs=new Array(); inputs[0]=document.getElementById('first').value; inputs[1]=document.getElementById('last').value; inputs[2]=document.getElementById('email').value; inputs[3]=document.getElementById('uid').value; inputs[4]=document.getElementById('password').value; inputs[5]=document.getElementById('confirm').value; var errors=new Array(); errors[0]="<span style='color:red'>Please enter your first…21. Which properties will extend a grid item so that it covers multiple rows and columns, specifically the area from row gridlines 3 to 5 and from column gridlines 1 to 3? Group of answer choices a. grid-row: 3/5; grid-column: 1/3; b. grid-row: 2/4; grid-column: 4; c. grid-column-start: 3; grid-column-end: 5; d. grid-column-start-end: 1/3; grid-row-start-end: 3/5;
