 Tip 3: Understand the cost of your objects
The fact is, some JavaScript objects are less forgiving on the browser
than others. While recognizing exactly which isn't easy (and isn't the goal
here), just becoming aware of this fact is important.
Take, for example, these two properties:
-object.innerText //IE only
-object.innerHTML
Did you know that the second property demands multiple times the system
resources to call than the first? If all you're changing is the textual
content of a <div> or <span> and in IE only, innerText would definitely be the more
efficient choice. Another example are the CSS properties "display"
and "visibility"; the former is
significantly more expensive than the later.
In conclusion
Many would agree that it's just a matter of time now before JavaScript
eventually graduates to become a full blown language like C or Java.
Practicing responsible and efficient coding now can save you a lot of work
in the future...you have been warned!
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