This page summarizes HyperTalk's built-in constants. A constant is a named value that never changes. You cannot change its value or use its name as a variable name. If you try, the interpreter will trigger a script error.
The table below lists all the built-in constants by name. See also by data type and by value.
Constant Name | Data Type | Value |
---|---|---|
colon |
string
|
: |
comma |
string
|
, |
down |
string
|
down |
eight |
integer
|
8 |
empty |
variant
|
|
eof |
string
|
|
false |
boolean
|
false |
five |
integer
|
5 |
formfeed |
string
|
|
four |
integer
|
4 |
linefeed |
string
|
|
nine |
integer
|
9 |
one |
integer
|
1 |
pi |
number
|
3.1415926535 |
quote |
string
|
" |
return |
string
|
|
seven |
integer
|
7 |
six |
integer
|
6 |
space |
string
|
|
tab |
string
|
|
ten |
integer
|
10 |
three |
integer
|
3 |
true |
boolean
|
true |
two |
integer
|
2 |
up |
string
|
up |
zero |
integer
|
0 |
The table below lists all the built-in constants by data type. See also by name and by value.
Constant Name | Data Type | Value |
---|---|---|
false |
boolean
|
false |
true |
boolean
|
true |
eight |
integer
|
8 |
five |
integer
|
5 |
four |
integer
|
4 |
nine |
integer
|
9 |
one |
integer
|
1 |
seven |
integer
|
7 |
six |
integer
|
6 |
ten |
integer
|
10 |
three |
integer
|
3 |
two |
integer
|
2 |
zero |
integer
|
0 |
pi |
number
|
3.1415926535 |
colon |
string
|
: |
comma |
string
|
, |
down |
string
|
down |
eof |
string
|
|
formfeed |
string
|
|
linefeed |
string
|
|
quote |
string
|
" |
return |
string
|
|
space |
string
|
|
tab |
string
|
|
up |
string
|
up |
empty |
variant
|
The table below lists all the built-in constants by value. See also by name and by data type.
Constant Name | Data Type | Value |
---|---|---|
eof |
string
|
|
formfeed |
string
|
|
linefeed |
string
|
|
return |
string
|
|
tab |
string
|
|
empty |
variant
|
|
space |
string
|
|
quote |
string
|
" |
comma |
string
|
, |
zero |
integer
|
0 |
one |
integer
|
1 |
two |
integer
|
2 |
three |
integer
|
3 |
pi |
number
|
3.1415926535 |
four |
integer
|
4 |
five |
integer
|
5 |
six |
integer
|
6 |
seven |
integer
|
7 |
eight |
integer
|
8 |
nine |
integer
|
9 |
ten |
integer
|
10 |
colon |
string
|
: |
down |
string
|
down |
false |
boolean
|
false |
true |
boolean
|
true |
up |
string
|
up |