Class: Singleton#
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Hierarchy#
Singleton
Table of contents#
Constructors#
Methods#
Constructors#
constructor#
• new Singleton()
Methods#
createInstance#
▸ Static
createInstance<T
, R
>(...args
): T
Creates the single instance of the child class if one was not already created.
Multiple calls will return the same instance. Essentially throwing away the arguments to the subsequent calls.
Note: this is a racy function, if two (or more) calls are racing to call this function only the first's arguments will be used.
Type parameters#
Name | Type |
---|---|
T |
T |
R |
extends any [] |
Parameters#
Name | Type | Description |
---|---|---|
...args |
R |
The constructor arguments for the child class |
Returns#
T
An instance of the child class
getInstance#
▸ Static
getInstance<T
, R
>(strict
): T
Get the instance of the child class that was previously created.
Type parameters#
Name | Type |
---|---|
T |
T |
R |
extends any [] |
Parameters#
Name | Type | Description |
---|---|---|
strict |
boolean |
If false will return undefined instead of throwing when an instance doesn't exist. Default: true |
Returns#
T
An instance of the child class
resetInstance#
▸ Static
resetInstance(): void
Delete the instance of the child class.
Note: this doesn't prevent callers of getInstance
from storing the result in a global.
There is no way in JS or TS to prevent globals like that.
Returns#
void