uCertify JavaScript Chapter 9 and 10

Which of the following methods returns an array of all the elements in a Webpage, with a specified class name?

• getElementsByName

• getElementsByTagName

• getElementsByClassName

• getElementByClassName

Which method allows you to delete entire HTML attributes from an element?

• getElementById

• setAttribute

• innerHTML

• removeAttribute

Which method retrieves the corresponding value of an attribute?

• getAttribute

• setAttribute

• removeAttribute

• innerHTML

Which of the following methods will access all occurrences in the page of an element with a specified name value and return them in an array?

• getElementsByTagName

• getElementById

• innerHTML

• getElementsByName

Which line of code will center <div id="mydiv"> on the page?

• document.getElementsByName("mydiv").setAttribute("align", "center");

• document.getElementById("mydiv").getAttribute("align", "center");

• document.getElementsByName("mydiv").getAttribute("align", "center");

• document.getElementById("mydiv").setAttribute("align", "center");

Which of the following methods lets you access all occurrences of an HTML tag in a Webpage?

• getElementByID

• getElementsByName

• getElementsByTagName

• innerHTML

Which method will return only the first occurrence of a specified element in a script, rather than finding all occurrences of a specified element and returning them in an array?

• getElementsByTagName

• getElementById

• innerHTML

• getElementsByName

In Web development, what is the ability to change HTML "on the fly"?

• To change Webpage content from X/HTML to JavaScript

• To change HTML on a Webpage when needed, even after it renders

• To change a Website from static content to interactive content

• To change Webpage content by requesting user input

What happens if your script runs the document.write method after the page is rendered (i.e., finished loading)?

*hint* 9.7 Appending Text to the DOM

• It will append the document.write content to the end of the page without overwriting the existing page content.

• The document.write content will not be added to the page at all.

• It will remove all content and code that was previously on the page and render only the document.write content.

• It will append the document.write content to the beginning of the page without overwriting the existing page content.

Which method dynamically modifies the value of an element's attribute?

• setAttribute

• getAttribute

• removeAttribute

• getElementById