OSL ‐ Variables - Mistium/Origin-OS GitHub Wiki

Variable Assignment:

variablename = "assign-data":
- Description: Sets a variable with the specified name (variablename) to the inputted data ("assign-data").
- Example:
```
count = 10
```
  This sets the variable count to the value 10.
- Example (Setting a variable to an array):
```
array = ["hello", "world"]
```
  or
```
array = [
  "hello",
  "world"
]
```
  This sets the variable array to the value ["hello", "world"].
- Example (Setting a variable to an object):
```
array = {"hello":"world"}
```
  or
```
array = {
  "hello":"world"
}
```
  This sets the variable array to the value ["hello", "world"].
variable,variable = array:
- Description: Sets a group of variables to an array's contents.
- Example:
```
array = [
  "item1",
  "item2"
]

var1,var2 = array
```
  This sets var1 to "item1" and var2 to "item2"
```
array = [
  "item1",
  "item2",
  "item3"
]

var1,var2 = array
```
  This will also work, aswell as any other variable assigment.
- Example (Embedded assigment):
```
array = [
  "item1",
  "item2",
  "item3"
]

array2 = [
  "otheritem1",
  "otheritem2"
]

array2[1],array2[2],var = array
```
  This both sets array2's first and second item while setting var to "item3"

List Item Assignment:

list.[itemnumber] = "assign-data":
- Description: Sets the selected item of a list (specified by [itemnumber]) to the inputted data ("assign-data").
- Example:
```
mylist.[3] = "new_value"
```
  This sets the third item in the list mylist to the value "new_value".
list[itemnumber] = "assign-data":
- Description: Same functionality as list.[itemnumber].
- Example:
```
mylist[3] = "new_value"
```
  This sets the third item in the list mylist to the value "new_value".

JSON Object Key Assignment:

object.key("key") = "assign-data":
- Description: Sets the selected key of a JSON object (specified by "key") to the inputted data ("assign-data").
- Example:
```
myobject.key("name") = "John"
```
  This sets the value associated with the key "name" in the JSON object myobject to "John".
object.key = "assign-data":
- Description: Sets the selected key of a JSON object (specified by key) to the inputted data ("assign-data").
- Example:
```
myobject.name = "John"
```
  This sets the value associated with the key name in the JSON object myobject to "John".
object."key" = "assign-data":
- Description: Sets the selected key of a JSON object (specified by "key") to the inputted data ("assign-data").
- Example:
```
myobject."name" = "John"
```
  This sets the value associated with the key "name" in the JSON object myobject to "John".
object.["key"] = "assign-data":
- Description: Sets the selected key of a JSON object (specified by "key") to the inputted data ("assign-data").
- Example:
```
myobject.["name"] = "John"
```
  This sets the value associated with the key "name" in the JSON object myobject to "John".
object["key"] = "assign-data":
- Description: Sets the selected key of a JSON object (specified by "key") to the inputted data ("assign-data").
- Example:
```
myobject["name"] = "John"
```
  This sets the value associated with the key "name" in the JSON object myobject to "John".

Arithmetic Modifiers:

variable += 10:
- Description: Appends ten to the end of a string or adds ten to a number data type.
- Example:
```
count += 5
```
  This increments the value of the variable count by 5.
variable *= 5:
- Description: Sets the variable to itself multiplied by 5. This operation works only on number data types.
- Example:
```
total *= 2
```
  This doubles the value of the variable total.
variable /= 5:
- Description: Sets the variable to itself divided by 5. This operation works only on number data types.
- Example:
```
price /= 2
```
  This halves the value of the variable price.
variable -= 5:
- Description: Sets the variable to itself minus 5. This operation works only on number data types.
- Example:
```
balance -= 10
```
  This subtracts 10 from the value of the variable balance.
variable %= 5:
- Description: Sets the variable to itself mod 5. This operation works only on number data types.
- Example:
```
balance %= 10
```
  This does a modulus calculation on the value of balance.

These commands and modifiers enable you to manipulate variables, lists, and JSON objects, performing assignments and arithmetic operations as needed in your script.