[jQuery] Re: HELP: Screening questions for JavaScript developer candidates:

Here's a few answers.

2. XmlHTTPrequest object, returns XHR request as obj or string, YUI
callback augments object, jQuery callback augments string

4. http://www.json.org/

5. block / inline

6.
assume allLayer is array of layer1 and layer2
YAHOO.util.Dom.setStyle(allLayer, "opacity", 66%);
YAHOO.util.Dom.setStyle(allLayer[0], "backgroundColor", "#000");

On Dec 29, 7:47 pm, "Angel Marquez" <angel.marq...@gmail.com> wrote:
> *(required) Q: *Describe the difference in result of the JavaScript DOM
> methods getElementById and getElementsByClassName.
>
> *2. (required) *Given this JavaScript statement:
> *
> **       objXHR.open('GET',**' HYPERLINK "http://"http://myURL.com',true**
> );**
> *
>         a.* Q:* What, probably, is the type of the object named "objXHR"?
>
>         b.* Q: *What is the purpose of each of the parameters being passed
> to the "open" method?
>
> *Q: *If an absolute URL is passed in the second argument, what kind of
> restriction *usually *applies?
>
> *   3. (required) *How would you *(a) *declare and then *(b) *instantiate a
> JavaScript class to describe a "Square" object, taking one argument in its
> constructor?  The instance of a Square should have sides 4 units in length.
> *( c )*What properties might a Square object have and how would they be
> coded?
>
>         *a.* declare: function Square(numericSideArgument) {
>                             ... (some other stuff)
>                             }
>         *b.* use: var mySquare = new Square(4);
>         *c.* methods: *perimeter*, coded as "this.perimeter =
> numericSideArgument * 4;"
>                               *area*, coded as "this.area =
> numericSideArgument ^ 2;" (squared, i.e. width * height)
>         So, the whole definition of Square would be:
>
>                             function Square(numericSideArgument) {
>
>                            this.perimeter = numericSideArgument * 4;
>                             this.area = numericSideArgument ^ 2;
>                             return this;
>
>                            }
>
>                             So, *Q: *"mySquare.perimeter" would equal?
>
>  *Q: *"mySquare.area" would equal *?*
>
> *  4.* *(desired) *An object called "auto" has an "id" attribute with value
> of "taurus" and a "color" attribute with value "blue".  Additionally, it has
> a child object "radio", which contains an array "knob" which contains three
> items with names and shapes:
>
> name: power, shape: round
>
> name: tune, shape: oval
>
> name: scan, shape: square
>
> *Q: *What does the acronym JSON stand for?
> *Q: *What does this object look like in JSON?
>
> *   BONUS 5.* *(CSS-related)* Describe the difference between a <DIV>
> element versus a <SPAN>.
>
> **
>
> *   BONUS 6.* *(Advanced JavaScript and YUI)* If I have a JavaScript
> collection object "YAHOO.util.Dom" with a member method "setStyle" that
> takes three arguments
>
> "an array of element id's"
>
> "a css property name", and
>
> "a single float value",
>
> ...*Q: *how would I write the *single *line of JavaScript that sets the
> transparency of DIV's "layer1" and "layer2" to "66%"?
>
>         *Q:* How would I write the single line of JavaScript that sets the
> background color of only DIV "layer1" to hexadecimal "black"?
>
>         *Q: *If there was another method which DID take a single-value,
> non-array, in that first argument, in object-oriented terminology, the
> method would be said to be "what"?
>
>         *Q: *Does JavaScript support overloading?
>
>         *BONUS 7:* *(Super-impressive)* *Q: *Can you summarize the
> definition of "JavaScript enclosures"?