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Type Alias: Collapsible<T> ​

ts
type Collapsible<T> = 
  | CollapsibleValue<T>
| () => CollapsibleValue<T>;

Defined in: collapse.ts:48

Represents a value that can be "collapsed" into a flat sequence of values of type T.

A Collapsible<T> can be:

  • A single value of type T
  • null or undefined
  • An array of values (and/or null/undefined)
  • A function returning any of the above
  • An iterable yielding values (and/or null/undefined)

This type is useful for APIs that accept flexible input forms, such as single values, arrays, lazy generators, or functions producing values, and need to process them uniformly.

Type Parameters ​

Type ParameterDescription
T extends CollapsiblePrimitiveThe primitive type that can be collapsed.