What have you used JavaScript for

Typical answers include form validations, user action confirmations, updating an Internet page dynam...

How do you access an element in an HTML document with JavaScript

Give the element an ID attribute and then use JavaScript’s getElementById() function to access that ...

How do you determine how many characters are in a JavaScript string

With the length property of the JavaScript string object.

What datatypes are supported by JavaScript

Number, String, Undefined, null, Boolean. At a minimum, the candidate should identify Number and Str...

How do you create a date in JavaScript

With the Date object: new Date()

Where does JavaScript date object pull it’s date from

From the client machine.

What does the isNaN function do

Returns true is the value provided is not a numeric value and false if the number provided is a nume...

What is the difference between JavaScript and Java

They are completely different languages.

How do you comment JavaScript code

For single-line comments, begin the line with consecutive forward slashes (//). To comment a block o...

What is the JavaScript concatenation operator

The plus sign.

How do you call an external JavaScript file

With the script tag, using the src attribute to reference the path of the JavaScript file.

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How do you create a function in JavaScript

Use the function statement.

How do you get the item selected in a dropdown select list

With the selectedIndex property

How do you open a new window

With window.open

How do you remove all options from a dropdown select list

By setting the length property of the dropdown select list to 0.

Demonstrate the syntax for writing a FOR loop

Need an answer similar to:

for (i=1;i

How do you determine the length of an array

With the length property of the array object

How do you load a new URL in a browser

With the location or href property of the window or document object.

What are the different usages of equal signs

One (=) is for assignment. Two (==) is for equality. Three (===) is for strict comparison.

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What is ++ used for

It is the increment operator. It adds one to a value.
What method is used to specify a container...