Did You Know?
Double quotation marks are the only valid characters that can be used to denote strings. Curly (or sexed) quotation marks cannot be used in scripts except as characters inside a string.
Some characters (such as the double quotation mark character) can't be included in between the double quotation marks that delineate a string value. If you wanted to display the string She said: "Boo!" in a text field named boo, you can't use the assignment boo = "She said: "Boo!""an error would be generated. You can use the backslash character to indicate that the following character should be included in the string. The following ActionScript is valid: boo = "She said: \"Boo!\"".
When a Flash 4 movie is opened in Flash 5, the program adds the Number function where it determines that string values are used in numeric expressions.