JavaScript Guidelines
JavaScript is Case Sensitive
A function named "myfunction" is not the same as
"myFunction". Therefore watch your capitalization when you create or call
variables, objects and functions.
Symbols
Open symbols, like ( { [ " ', must have a matching closing
symbol, like ' " ] } ).
White Space
JavaScript ignores extra spaces. You can add white space to your script to make
it more
readable. These two lines mean exactly the same:
name="Hege"
name = "Hege"
|
Break up a Code Line
You can break up a code line within a text with a backslash. The example below will be displayed
properly:
document.write("Hello \
World!")
|
Note: You can not break up a code line like this:
document.write \
("Hello World!")
|
The example above will cause an error.
Insert Special Characters
You can insert special characters (like " ' ; &) with the backslash:
document.write ("You \& I sing \"Happy Birthday\".")
|
The example above will produce this output:
You & I sing "Happy Birthday".
|
Comments
You can add a comment to your JavaScript code starting the comment with
"'//":
sum=a + b //calculating the sum
|
You can also add a comment to the JavaScript code, starting the comment with
"/*" and ending it with "*/"
sum=a + b /*calculating the sum*/
|
Using "/*" and "*/" is the only way to create a
multi-line comment:
/* This is a comment
block. It contains
several lines*/
|
|