globalSingleton()

globalSingleton<T>(key, create): T

Defined in: utils/globalSingleton.ts:10 

One object for all copies of a package on a page, kept on globalThis under Symbol.for(key). A bundler can load a package twice, and two copies of a React context or a registry do not see each other.

Type Parameters

T

T

The type of the object.

Parameters

key

string

The name of the symbol. It must never change: published copies find each other through it.

create

() => T

Makes the object, called only when no copy has made it yet.

Returns

T

The object.