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add

add number to [chunk of] container

Note: The container or chunk referred to must contain a number.

The add command adds the value of number to the number in a container or chunk and replaces the contents of the container or chunk with the result.

(You can use the is a operator to see if the container is a number.)

Examples

add 3 to It  

add field "Amount" to field "Total"

get last line of card field "credits"
if it is a number then add it to item 1 of theTotal

if the Message box is a number then add 15 to Message box

Placeholders

number
An expression that evaluates to a number.

For example:

169 / 19
pi
(60.625 * 500)
average(1,4,5,10)
i+1 -- (where i is a number)
line 1 of fld "Debits"

Note: Formally, HyperCard distinguishes between factors (simple values) and expressions. The difference between factors and expression matters only if you like to drop parentheses. Most functions take factors as their parameters, which is why abs of -10 + 2 returns 12 and abs of (-10 + 2) returns 8. In short, always use parentheses to group things the way you want them to evaluate, and you won’t have to worry about the difference between factors and expressions.

container
HyperTalk DefinitionA place where you can store and retrieve a value.

There are six types of containers in HyperCard: a variable, a button, a field, the selection, the Message box, and menus.

myVariable
[the] selection
the Message box
btn 3
bg btn "Names"
card field 1
bkgnd field "Total"
menu 2
menu "Edit"

Additionally, you can refer to a button or field by its part number:

card part 1
last background part

AppleScript DefinitionAn object that contains one or more other objects, known as elements of the container. In a reference, the container specifies where to find an object. You specify containers with the reserved words of or in.

You can also use the possesive form ('s) to specify containers. For example, in

first window's name

the container is first window. The object it contains is a name property.

add

Examples

Placeholders

Related Topics