Language Guide

CHAPTER 3

Values

36 Using Value Class Deﬁnitions

REFERENCE FORMS

Use the following forms to refer to properties of lists and items in lists:

You can count the items in a list with the Count command. For example,

the value of the following statement is 6.

count {"a", "b", "c", 1, 2, 3}

--result: 6

You can also count elements of a specific class in a list. For example, the

value of the following statement is 3.

count integers in {"a", "b", "c", 1, 2, 3}

--result: 3

Another way to count the items in a list is with a Length property

reference:

length of {"a", "b", "c", 1, 2, 3}

--result: 6

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Property. For example, class of {"this", "is", "a", "list"}

specifies list.

Index. For example, item 3 of {"this", "is", "a", "list"}

specifies "a".

COMMANDS HANDLED

AppleScript supports coercion of a single-item list to any value class

to which the item can be coerced if it is not part of a list.

AppleScript also supports coercion of an entire list to a string if all

items in the list can be coerced to a string. The resulting string

concatenates all the items:

{5, "George", 11.43, "Bill"} as string

--result: "5George11.43Bill"

COERCIONS SUPPORTED