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cist 1520 final

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
You must know which of the following to be able to use JavaScript?   show
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Which of the following is something you should have to use JavaScript?   show
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show JavaScript  
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is the international standard name and specification used for the JavaScript language.   show
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show LiveScript  
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show prototype-based  
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show It may offer features such as code highlighting, completion, debugging tools, and more.  
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A language doesn't require a program to be compiled before it is run.   show
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show The client  
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How is JavaScript added to a Web page?   show
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show False  
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show True  
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A fancy code editor is necessary to edit JavaScript files.   show
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show False  
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show <script> and </script> tags  
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show All of the above  
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show To ensure the Web page validates when using XHTML  
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Is JavaScript code case sensitive?   show
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show content, JavaScript  
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An external JavaScript file commonly uses a filename extension of _.   show
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show <script src="yourfile.js"></script>  
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In HTML, the script tag is not case sensitive. However, with XHTML, the script tag must be in _.   show
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The _ signals the end of a JavaScript statement.   show
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To write a string of text on a Web page, the _ method can be used.   show
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show When the script is very long or needs to be placed in more than one HTML document.  
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show documenting, debugging  
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Which of the following indicates that a single line of commentary will follow it within JavaScript code?   show
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Which of the following indicates that more than one line of commentary will follow it within JavaScript code?   show
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show */  
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show Close  
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A variable represents or holds a ___   show
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show They can save you time writing and updating your scripts, and they can make the purpose of your code clearer.  
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show var  
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show =  
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show var pagenumber=240;  
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Variable names are not case sensitive.   show
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A variable name must begin with a ____,____,____character.   show
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show TRUE  
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show var my_house;  
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show number, string, boolean, null, undefined, symbol, and object.  
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To denote an exponent in JavaScript, you use the letter ___ right after the base number and before the exponent.   show
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show var mytext="Here is some text!';  
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show document.write("John said,\"Hi!\"");  
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____enable you to add things to your strings that could not be added otherwise.   show
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Which of the following successfully displays the value of a variable named myhobby by adding it to a string?   show
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In general, a ____ is a little script within a larger script that is used to perform a single task or a series of tasks.   show
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What are two reasons why a function can be useful?   show
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On the first line of a function, ________ whether it accepts any arguments.   show
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show keyword  
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What surrounds the code inside a function?   show
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Function names are case sensitive.   show
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JavaScript keywords can be used as a function names.   show
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show function get_text()  
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Arguments are used to allow a function to import ____ values from somewhere outside the function.   show
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Arguments are set on the first line of a function, inside a set of _____   show
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Multiple argyments are separated by what symbol?   show
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show window.alert("This is text");  
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show some_alert("some","words");  
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show var shopping=get_something();  
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show global  
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The _____ keywords create values in the current block context.   show
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_____ is a symbol or word in JavaScript that performs some sort of calculation, comparison, or assignment on one or more values.   show
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____ operators are most often used to perform mathematical calculations on two values.   show
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show addition  
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When the increment operator is placed before the operand,__________, and then the rest of the statement is executed.   show
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show $#  
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What does an assignment operator do?   show
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show add-and-assign(+=)  
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show Compares two values or statements, and returns a valie of true or false.  
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show 4 !=3  
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Which of the following comparisons will return false?   show
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show one or both  
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Which of the following statements will return true?   show
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show (4 >=4) && (5<=2)  
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____ operators are logical operators that work at the bit level.   show
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In JavaScript, the operators have a certain order of _____.   show
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show getData()  
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show event.dataTransfer  
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The ___ event occurs when an element begins being dragged.   show
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show FALSE  
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JavaScript ___ may make some advanced coding tasks easier by making the code easier to write.   show
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The ____ attribute of an element defines whether or not the element can be dragged.   show
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When drawing on a canvas, you can use the fillCircle() method to draw a circle.   show
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show <canvas>  
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The jQuery library makes it easier to write code that is ____.   show
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show CSS  
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show $("#story").hide();  
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show $(document).ready()  
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The acronym for JavaScript Object Notation is ___.   show
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show TRUE  
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___ stands for Asynchronous JavaScript and XML.   show
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What object allows you to get data from the server in JavaScript?   show
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Which of the following HTML5 form attributes is used for fields that must be filled in by the user to validate?   show
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The ___ method allows you to submit a form without the viewer clicking the submit button.   show
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One way to help with form accessibility is to use the ___ tags to identify what field a piece of text is describing.   show
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Which of the following would add a valid meter tag to the document to show 8 on a scale of 0 to 10?   show
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The ____ method allows you to reset a form using your script.   show
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show pattern  
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The ___ property is an array that allows you to access each element in a specific form.   show
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show action  
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show document.f1.e1.value  
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Using form ___ or ___ allows you to name the forms on the page that you want to access later.   show
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show document.forms.length  
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Which of the following would find the number of elements in the third form on a page?   show
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Which of the following would access the fourth form on a page?   show
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The forms ____ allows you to access a form using an index number.   show
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The ____ objects provides properties and methods to get information about string or to modify strings.   show
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show Creating an instance of the String object and creating a string literal  
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show literal  
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show JavaScript takes the string literal and turns it into a temporary String object  
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show Length  
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show length  
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show var the_text ="Look at me!";  
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show charAt()  
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show big()  
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The concat() method ___ two or more string together and returns the new combined string value.   show
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Which one of the following statements is true?   show
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show document.cookie  
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show toString()  
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show form  
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show The setInterval() method is used to repeat a function at aset time interval, while setTimeout() executes a function only once after a set time delay.  
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show yes, no, 1, and 0  
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show prompt  
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show print()  
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What value is returned by the confirm() method if the viewer clicks the OK button?   show
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show alert()  
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What is the difference between the parent and top properties?   show
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show Newer browsers do not allow the window status to be changed by default, so the user would need to change security settings in order for it to work.  
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show Self  
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The calls to properties and methods of the window object can often be shortend because:   show
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The ___ property holds the name of the current window and also allows you to give the window a name.   show
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show TRUE  
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The ____ property returns the number of frames within a window.   show
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show TRUE  
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A ___ object is created for each browser window   show
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show match()  
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show replace()  
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A _____ loop looks at a comparison and repeats until the comparison is no longer true.   show
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show FALSE  
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What property of the Array object will return the numeric value of the length of an array?   show
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show bracket  
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show CONSTRUCTOR  
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A(n) _____ of an object can be created using the new keyword.   show
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You can only have one instance of an object.   show
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show var weekday=rightnow.getDay();  
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show FALSE  
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show getDay()  
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What must be created in most cases before the Date object's properties and methods can be used?   show
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show sqrt()  
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Which of the following would correctly generate a random number between 0 and 7?   show
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The pow() method returns the numeric value of the ____ argument raised to the power of the ____ argument.   show
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show asin()  
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The abs() method returns the ____ value of a number sent to it as an argument.   show
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The ___ property holds the value of the square root of 2.   show
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show document.write(Math.PI);  
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The LOG10E property holds the value of the logarithm of 10*E   show
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show logarithm  
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show E  
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What do the properties and methods of the Math objects enable you to do?   show
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You can use a ___ clause to return only the rows in a table that meet certain criteria.   show
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show FALSE  
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show router  
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The default port used when you type a URL into your Web browser is ____.   show
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The ____ module can be used to create a Web server in Node.js.   show
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show *  
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show pg  
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You should always use the superuser account to query your database from your Web application.   show
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The ___ stack uses MongoDB, Express, AngulatJS, and NodeJS.   show
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One one type of database can be used with Node.js.   show
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Which of the following extensions would be used for a custom module?   show
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show custom  
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Which of the following would require the built-in fs module without an error?   show
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Which of the following would run the Node script hello-world.js from the command window?   show
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Node.js runs in a Web browser.   show
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show addEventListener() , attachEvent()  
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show window.event  
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The keydown event occurs when a viewer presses down a key on the keyboard.   show
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The submit event occurs when the viewer ___ on a Web page.   show
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show type  
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The ____ object contains properties and methods for an event.   show
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show focus  
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show unload  
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show FALSE  
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show The viewer moves the mouse cursor over an element on the page  
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show Load  
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show <input type="button" onclick="window.alert('Hey there!');>  
🗑
To use an event handler, you place it in the ____ or the _____ code.   show
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show access, events  
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An event handler is a predefined JavaScript property of an object that is used to handle an event on a Web Page.   show
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show document.write() and document.writeln() statements.  
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show All the elements that have the same value for the name attribute (most commonly radio buttons).  
🗑
How does the writeln() method differ from the write() method?   show
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Which property return the complete URL of the current document?   show
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You can use the title property to display the title of a Web page someplace other than in the top bar of the browser window.   show
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show TRUE  
🗑
show lastModified  
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show innerHTML  
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show ANCHORS  
🗑
You cannot remove nodes from the document once they have been added.   show
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show FALSE  
🗑
The _____ method of the document object allows you to get an element by the value of its id attribute.   show
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You can use the DOM node property style to alter the style sheet attributes of an element.   show
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show REFERRER  
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The _______ object is an object that is created by the browser for each new HTML page that is viewed.   show
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show appType  
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The _____ object gives you access to the various properties of the viewer's browser.   show
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In JavaScript, there are many ____ objects you can use to gain access to certain properties and methods you may need.   show
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assuming the myhouse object exists, the kitchen property is assigned a new string value of :big: or is initialized with the value "big".   show
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Which of the following would send an alert to the viewer that tells the name of the browser being used?   show
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If a property cannot be found in the object instance, JavaScript will look in the object's _________.   show
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show Assuming the myhouse object exists, it assigns the value of the kitchen property of the myhouse object to the variable x.  
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show dot operator (.)  
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show TRUE  
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show CONSTRUCTOR  
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An object is a collection of _______ and _______.   show
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show TRUE  
🗑
Which of the following would be valid as the first line of an if/else statement?   show
🗑
show while (x=7)  
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Which of these would be valid as the first line of a for loop?   show
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A loop is useful because it forces you to type lines of code repeatedly.   show
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A do while loop is special because the code within the loop is performed at least once, even if the comparison used would return false the first time.   show
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show FALSE  
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show As many times as you like (through enough nesting could make the browser run out of memory)  
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show array  
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show it sorts the content using string character codes  
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show pop()  
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___ arrays provide the ability to create arrays of more than one dimension.   show
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show join()  
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show concat()  
🗑
What does the following code do? let s_list = new Array(5);   show
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Which of the following does not correctly create an array?   show
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You can use JavaScript keywords as array names.   show
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In JavaScript, there are ____ ways to define an array.   show
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A ____ is a block of code that allows you to repeat a section of code certain number of times.   show
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You can use a ___ to cycle through all of the items in an array.   show
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The ___ statement allows you to take a single variable value and execute a different line of code based on the value of the variable.   show
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You can think of a conditional statement as being a little like _____.   show
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What do you use to enclose the blocks of code in conditionals and loops?   show
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show index  
🗑
Array literal notation allows you to create an array using square brackets, without the need to write out "____".   show
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A conditional statement is a statement that you can use to ____________, or do something else if that condition is not met.   show
🗑


   

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