---
name: BaseScript
last_updated: 2026-06-23T06:48:35Z
inherits:
  - LuaSourceContainer
  - Instance
  - Object
type: class
memory_category: Script
tags:
  - NotCreatable
summary: "The base class for all script objects which run automatically."
---

# Class: BaseScript

> The base class for all script objects which run automatically.

## Properties

### Property: BaseScript.Disabled

```json
{
  "type": "boolean",
  "access": "ReadWrite",
  "security": {
    "read": "None",
    "write": "None"
  },
  "serialization": {
    "can_load": true,
    "can_save": true
  },
  "thread_safety": "ReadSafe",
  "category": "Behavior"
}
```

Determines whether a [BaseScript](/docs/reference/engine/classes/BaseScript.md) will run or not.

If a script is disabled by changing this property to true while the script
is running, the current running thread of the script will be terminated.

If this property is changed from true to false, the script will run again.
This means that [Disabled](/docs/reference/engine/classes/BaseScript.md) can be toggled to
restart a script:

```lua
scriptObject.Disabled = true
scriptObject.Disabled = false
```

Note that the above code snippet cannot be used within the script itself,
since disabling the script from within itself will terminate the thread
and the line to reenable it will never execute.

### Property: BaseScript.Enabled

```json
{
  "type": "boolean",
  "access": "ReadWrite",
  "security": {
    "read": "None",
    "write": "None"
  },
  "serialization": {
    "can_load": false,
    "can_save": false
  },
  "thread_safety": "ReadSafe",
  "category": "Behavior"
}
```

Determines whether a [BaseScript](/docs/reference/engine/classes/BaseScript.md) will run or not. This should be
used in favor of the similar but opposite
[Disabled](/docs/reference/engine/classes/BaseScript.md) property.

If a script is disabled by changing this property to false while the
script is running, the current running thread of the script will be
terminated.

If this property is changed from false to true, the script will run again.
This means that [Enabled](/docs/reference/engine/classes/BaseScript.md) can be toggled to
restart a script:

```lua
scriptObject.Enabled = false
scriptObject.Enabled = true
```

Note that the above code snippet cannot be used within the script itself,
since disabling the script from within itself will terminate the thread
and the line to reenable it will never execute.

### Property: BaseScript.RunContext

```json
{
  "type": "RunContext",
  "access": "ReadOnly",
  "security": {
    "read": "None",
    "write": "PluginSecurity"
  },
  "serialization": {
    "can_load": true,
    "can_save": true
  },
  "thread_safety": "ReadSafe",
  "category": "Behavior"
}
```

Determines the context under which the script will run.

When using the Legacy RunContext scripts will only run when parented to
certain containers dependent on whether they are a [Script](/docs/reference/engine/classes/Script.md) or
[LocalScript](/docs/reference/engine/classes/LocalScript.md).

If RunContext is assigned while the script is running any threads created
by the script will be terminated and the script will start running under
the new context if possible.

Note, RunContext cannot be used from a LocalScript.

### Property: BaseScript.LinkedSource

```json
{
  "type": "ContentId",
  "access": "ReadWrite",
  "security": {
    "read": "None",
    "write": "None"
  },
  "serialization": {
    "can_load": true,
    "can_save": true
  },
  "deprecated": true,
  "thread_safety": "ReadSafe",
  "category": "Data",
  "capabilities": [
    "LoadUnownedAsset"
  ]
}
```

> **Deprecated:** This property is now replaced by [packages](/docs/en-us/projects/assets/packages.md) which has greater functionality.

The content ID of an uploaded script. When set binds the uploaded code to
the script's [Script.Source](/docs/reference/engine/classes/Script.md).

By default, this property is set to _'[Embedded]'_. This means the source
of the script is not linked to an upload script and is instead written in
the script.

```lua
script.LinkedSource = "http://www.roblox.com/asset/?id=1014476" -- link source
```

Developers should remove a linked source via the properties window, rather
than setting the property to _'[Embedded]'_.

For the LinkedSource property for [ModuleScripts](/docs/reference/engine/classes/ModuleScript.md),
please see [ModuleScript.LinkedSource](/docs/reference/engine/classes/ModuleScript.md).

## Inherited Members

### From [Instance](/docs/reference/engine/classes/Instance.md)

- **Property `Archivable`** (`boolean`): Determines if an Instance and its descendants can be cloned using
- **Property `archivable`** (`boolean`):  *(deprecated, hidden)*
- **Property `Capabilities`** (`SecurityCapabilities`): The set of capabilities allowed to be used for scripts inside this
- **Property `Name`** (`string`): A non-unique identifier of the Instance.
- **Property `Parent`** (`Instance`): Determines the hierarchical parent of the Instance.
- **Property `PredictionMode`** (`PredictionMode`): 
- **Property `RobloxLocked`** (`boolean`): A deprecated property that used to protect CoreGui objects. *(hidden)*
- **Property `Sandboxed`** (`boolean`): When enabled, the instance can only access abilities in its `Capabilities`
- **Property `UniqueId`** (`UniqueId`): A unique identifier for the instance.
- **Method `AddTag(tag: string): ()`**: Applies a tag to the instance.
- **Method `children(): Instances`**: Returns an array of the object's children. *(deprecated)*
- **Method `ClearAllChildren(): ()`**: This method destroys all of an instance's children.
- **Method `Clone(): Instance`**: Create a copy of an instance and all its descendants, ignoring instances
- **Method `clone(): Instance`**:  *(deprecated)*
- **Method `Destroy(): ()`**: Sets the Instance.Parent property to `nil`, locks the
- **Method `destroy(): ()`**:  *(deprecated)*
- **Method `FindFirstAncestor(name: string): Instance?`**: Returns the first ancestor of the Instance whose
- **Method `FindFirstAncestorOfClass(className: string): Instance?`**: Returns the first ancestor of the Instance whose
- **Method `FindFirstAncestorWhichIsA(className: string): Instance?`**: Returns the first ancestor of the Instance for whom
- **Method `FindFirstChild(name: string, recursive?: boolean): Instance?`**: Returns the first child of the Instance found with the given name.
- **Method `findFirstChild(name: string, recursive?: boolean): Instance`**:  *(deprecated)*
- **Method `FindFirstChildOfClass(className: string): Instance?`**: Returns the first child of the Instance whose
- **Method `FindFirstChildWhichIsA(className: string, recursive?: boolean): Instance?`**: Returns the first child of the Instance for whom
- **Method `FindFirstDescendant(name: string): Instance?`**: Returns the first descendant found with the given Instance.Name.
- **Method `GetActor(): Actor?`**: Returns the Actor associated with the Instance, if any.
- **Method `GetAttribute(attribute: string): Variant`**: Returns the value which has been assigned to the given attribute name.
- **Method `GetAttributeChangedSignal(attribute: string): RBXScriptSignal`**: Returns an event that fires when the given attribute changes.
- **Method `GetAttributes(): Dictionary`**: Returns a dictionary of the instance's attributes.
- **Method `GetChildren(): Instances`**: Returns an array containing all of the instance's children.
- **Method `getChildren(): Instances`**:  *(deprecated)*
- **Method `GetDebugId(scopeLength?: int): string`**: Returns a coded string of the debug ID used internally by Roblox.
- **Method `GetDescendants(): Instances`**: Returns an array containing all of the descendants of the instance.
- **Method `GetFullName(): string`**: Returns a string describing the instance's ancestry.
- **Method `GetStyled(name: string, selector: string?): Variant`**: Returns the styled or explicitly modified value of the specified property,
- **Method `GetStyledPropertyChangedSignal(property: string): RBXScriptSignal`**: 
- **Method `GetTags(): Array`**: Gets an array of all tags applied to the instance.
- **Method `HasTag(tag: string): boolean`**: Check whether the instance has a given tag.
- **Method `IsAncestorOf(descendant: Instance): boolean`**: Returns true if an Instance is an ancestor of the given
- **Method `IsDescendantOf(ancestor: Instance): boolean`**: Returns `true` if an Instance is a descendant of the given
- **Method `isDescendantOf(ancestor: Instance): boolean`**:  *(deprecated)*
- **Method `IsPropertyModified(property: string): boolean`**: Returns `true` if the value stored in the specified property is not equal
- **Method `QueryDescendants(selector: string): Instances`**: Returns an array containing all descendants of the instance that match the
- **Method `Remove(): ()`**: Sets the object's `Parent` to `nil`, and does the same for all its *(deprecated)*
- **Method `remove(): ()`**:  *(deprecated)*
- **Method `RemoveTag(tag: string): ()`**: Removes a tag from the instance.
- **Method `ResetPropertyToDefault(property: string): ()`**: Resets a property to its default value.
- **Method `SetAttribute(attribute: string, value: Variant): ()`**: Sets the attribute with the given name to the given value.
- **Method `WaitForChild(childName: string, timeOut: double): Instance`**: Returns the child of the Instance with the given name. If the
- **Event `AncestryChanged`**: Fires when the Instance.Parent property of this object or one of
- **Event `AttributeChanged`**: Fires whenever an attribute is changed on the Instance.
- **Event `ChildAdded`**: Fires after an object is parented to this Instance.
- **Event `childAdded`**:  *(deprecated)*
- **Event `ChildRemoved`**: Fires after a child is removed from this Instance.
- **Event `DescendantAdded`**: Fires after a descendant is added to the Instance.
- **Event `DescendantRemoving`**: Fires immediately before a descendant of the Instance is removed.
- **Event `Destroying`**: Fires immediately before (or is deferred until after) the instance is
- **Event `StyledPropertiesChanged`**: Fires whenever any style property is changed on the instance, including

### From [Object](/docs/reference/engine/classes/Object.md)

- **Property `ClassName`** (`string`): A read-only string representing the class this Object belongs to.
- **Property `className`** (`string`):  *(deprecated)*
- **Method `GetPropertyChangedSignal(property: string): RBXScriptSignal`**: Get an event that fires when a given property of the object changes.
- **Method `IsA(className: string): boolean`**: Returns true if an object's class matches or inherits from a given class.
- **Method `isA(className: string): boolean`**:  *(deprecated)*
- **Event `Changed`**: Fires immediately after a property of the object changes, with some