Every
character in a string has an index position in the string (an integer).
The index position of the first character is 0. For example, in
the following string, the character
y
is in position
0 and the character
w
is in position 5:
"yellow"
You can examine individual characters in
various positions in a string using the
charAt()
method
and the
charCodeAt()
method, as in this example:
var str:String = "hello world!";
for (var i:int = 0; i < str.length; i++)
{
trace(str.charAt(i), "-", str.charCodeAt(i));
}
When you run this code, the following output is produced:
h - 104
e - 101
l - 108
l - 108
o - 111
- 32
w - 119
o - 111
r - 114
l - 108
d - 100
! - 33
You can also use character codes to define
a string using the
fromCharCode()
method, as the
following example shows:
var myStr:String = String.fromCharCode(104,101,108,108,111,32,119,111,114,108,100,33);
// Sets myStr to "hello world!"
