JavaScript

Ternary Operator

When you have a simple if...else statement like the following:

var a = true;
if (a == true) {
 alert("True");
}
else {
 alert("False");
}

It may be best to use the ternary operator.

var a = true;
//(Test) ? (if) : (else);
(a == true) ?

The problem

I had HTML that had class information on each object that signified how deeply it was indented (e.g. "indent-5"). I needed to use the value of the indent to make various comparisons in another. To solve this problem I created a simple utility function.

NOTE: All functions were written with a dependancy on jQuery.

Original

I created an array of the object's classes by splitting the string at the instance of a space. I made the assumption that the indent class would always be the first and accessed the first element of the object class array I created.

Sometime last year I learned about the onUnload event, which is available on the "window" object. Today I thought I could use it to prevent a user from leaving a web page if, for example, there is unsaved data that will be lost. I quickly realized that it would not work. The "onunload" event happens after the user has already "unloaded" the page.