Which characters are used to enclose multiple statement in a function?
Answer(s): C
In JavaScript, curly braces {} are used to enclose multiple statements in a function, defining the block of code to be executed.Curly Braces: Curly braces {} are used to group multiple statements into a single block. This is necessary for defining the body of a function, loops, conditional statements, and other control structures.Usage Example:function greet(name) {let greeting = "Hello, " + name;console.log(greeting);}In this example, the curly braces enclose the statements that form the body of the greet function.
MDN Web Docs on FunctionsECMAScript Language Specification
A javaScript programmer defines the following function:What is the name of the function?
Answer(s): D
In JavaScript, the name of a function is defined after the function keyword and before the parentheses that enclose its parameters.Function Name: The function name is the identifier used to call the function. It is defined immediately after the function keyword.Usage Example:function square(number) {return number * number;}In this example, the name of the function is square.
Which method allows the end user to enter text as an answer to a question as the page loads?
The prompt method in JavaScript displays a dialog box that prompts the user for input, allowing the end user to enter text as an answer to a question when the page loads.prompt Method: The prompt method displays a dialog box with an optional message prompting the user to input some text. It returns the text entered by the user or null if the user cancels the dialog.Usage Example:let userInput = prompt("Please enter your name:", "Harry Potter");console.log(userInput);In this example, a prompt dialog asks the user to enter their name, and the entered text is logged to the console.
MDN Web Docs on promptW3C HTML Specification on Dialogs
Given the following javaScript code:Which code segment calls the method?
Answer(s): A
To call the sayHello method in the given JavaScript object, you need to use the object's name followed by the method name with parentheses.Correct Method Call:Given the object definition:var obj = {sayHello: function() {alert("Hello");}};To call the method sayHello on the object obj:obj.sayHello();Option A: Obj.sayHello; is incorrect syntax. The correct syntax is obj.sayHello();.Option B: Window.sayHello(); is incorrect because the method is defined in the obj object, not the window object.
MDN Web Docs - FunctionsW3Schools - JavaScript Objects
Given the following code:Var a = `'true'';What is the data type of d?
Answer(s): B
The data type of the variable a is determined by the value assigned to it. In JavaScript, if a value is enclosed in double or single quotes, it is treated as a string.Variable Assignment:Given the code:var a = "true";The value "true" is enclosed in double quotes, making it a string.Option A: Boolean is incorrect because the value "true" is a string, not a boolean.Option B: String is correct because the value is enclosed in double quotes.Option C: Object is incorrect because the value is a primitive string.Option D: Undefined is incorrect because the variable a is assigned a value.
MDN Web Docs - JavaScript Data TypesW3Schools - JavaScript Data Types
Post your Comments and Discuss WGU Web-Development-Applications exam prep with other Community members:
Our website is free, but we have to fight against AI bots and content theft. We're sorry for the inconvenience caused by these security measures. You can access the rest of the Web-Development-Applications content, but please register or login to continue.