Exam 190-513: Using JavaScript in Domino R5 Applications

Jake Howlett, 21 Febraury 2001

Category: Miscellaneous; Keywords: JavaScript exam

Yep, you guessed it; Yesterday I did the JavaScript exam. Why am I telling you, you may well ask? Well, firstly to show-off (I got 94%) and secondly to let you know what it was like and some of the "trickier" questions asked.

I have to admit that I went in to the exam brimming with confidence, there's not much I don't know about JavaScript ;-) This confidence was probably brought on because I had forgotten how badly those damn questions are worded. I got to the end only half as confident of passing as when I walked in. Most questions are of the type where it could be A or it could be B, depending how you read it. Luckily I've done enough Lotus exams to know what they are getting at.

In general most of the questions asked are a push-over for anybody familiar with JavaScript. There are lots that are simply checking you know that JS is case sensitive, along the lines of:

Q. Which of these will properly access the value of a field called "City" on the form on a page:

document.Forms[0].City.value
document.forms[0].City.value
document.orm.City.value
Some other silly suggestion

There are also a few that test whether or not you know the difference between "=" and "==". For example:

Q. In the following code the alert box always appears, which line will fix this?
var city = document.forms[0].City;
if (city.value = "London")
{
alert("I am in London")
}

if (city.text = "London")
if (city.value == "London")
if (city == "London")
if (city = "London")

Other topics are more varied. Here is a selection of those worth a mention. I think the bit I fowled up on was variables (I got 100% in "Use JavaScript" section and 89% in "Code JavaScript" section) probably because they talk about JavaScript as Netscape expect it to be, where as I am used to desiging for IE's more friendly implementaion.

Q. How are variables typed and declared in JavaScript?

Explicitly declared, Loosely typed
Implicitly declared, Loosely typed
Explicitly declared, Strongly typed
Implicitly declared, Strongly typed

Q. Which of these best describes the Location object?

Contains the URL of a hypertext link
Contained by the history object
Contained by the document object
Contains the URL of the current doc

Q. A variable is defined like below. What is x ?
var x = document.forms[0];

The form object of the current page
A document object with a form referrer
Silly
Silly

Q. Look at the following function.
function clickButton(){
document.forms[0].submitMe.onClick();
}
What does it do?

Runs a global JS function called onClick()
Runs onClick event of the onSubmit object
Runs a JS function called onClick that is on a form object called submitMe
Obviously wrong

Q. What does the following code do?
onClick = "submitMe(this.form);"

Call the function and pass form object of current page
Call the function and pass form object of the current button object
Wrong
Wrong

Q. Which is true of the history object?

Belongs to window object
Belongs to document object
Belongs to location object
Silly answer