let
VARIABLE
=
VALUE
The let statement creates a local variable and assigns a value to it.
Parameters
This statement has two parameters:
variable – is the name of the variable that you want to create.
value – calculates the value that will be placed into the variable.
Description
This statement works just like an assignment, but the destination of the assignment is automatically created as a local variable. For example, this statement creates a local variable named x and assigns the value 23 to it.
let x=23
The value can be any data type, for example text like this:
let userName="Bob"
Note: This statement is identical to the assignlocal statement, but let uses an equal sign between the variable name and the value, instead of a comma.
Note: Local variables should never be used in a form.
See Also
- assign -- assigns a value to a field or variable.
- assignfield -- performs an assignment, much like an equals sign or the assign statement. However, the *assignfield* statement only performs the assignment to a database field, not to any variable.
- assignfieldwithsideeffects -- performs an assignment, much like an equals sign or the assign statement. However, the *assignfieldwithsideeffects* statement only performs the assignment to a database field, not to any variable. After performing the assignment, it will run any side effects associated with the field, including formulas and code associated with the field.
- assignfileglobal -- performs an assignment, much like an equals sign or the assign statement. However, the *assignfileglobal* statement only performs the assignment to a fileglobal variable.
- assignglobal -- performs an assignment, much like an equals sign or the assign statement. However, the *assignglobal* statement only performs the assignment to a global variable.
- assignlocal -- performs an assignment, much like an equals sign or the assign statement. However, the *assignlocal* statement only performs the assignment to a local variable.
- assignwindowglobal -- performs an assignment, much like an equals sign or the assign statement. However, the *assignwindowglobal* statement only performs the assignment to a windowglobal variable.
- define -- performs an assignment, much like an equals sign or the assign statement. However, the *define* statement only performs the assignment if the variable is currently undefined. If the variable already has a value, the *define* statement leaves it alone. The *define* statement is especially useful for initializing permanent variables.
- letfileglobal -- creates a fileglobal variable and assigns a value to it.
- letglobal -- creates a global variable and assigns a value to it.
- letpermanent -- creates a permanent variable and assigns a value to it.
- letservervariable -- creates a server variable and assigns a value to it.
- letwindowglobal -- creates a windowglobal variable and assigns a value to it.
- local -- creates one or more local variables.
- set -- performs an assignment, much like an equals sign or the assign statement. However, the destination of the assignment can be calculated on the fly.
- setfield -- performs an assignment, much like an equals sign or the assign statement. However, the destination field of the assignment can be calculated on the fly.
- setglobal -- sets a value into a global variable. The name of the global variable is calculated on the fly.
- setlocal -- sets a value into a local variable. The name of the local variable is calculated on the fly.
- setlocalsfromdictionary -- converts a dictionary into a collection of local variables. The names and values of the local variables will be derived from the dictionary contents.
History
| 10.0 | New | New in this version. |