Function single

single<TSource>(src: Iterable<TSource>, predicate?: ((item: TSource, index: number) => boolean)): TSource
Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists.

Typeparam
TSource The type of the elements of source.

Returns
The single element of the input sequence that satisfies a condition.
Type Parameters
- TSource
Parameters
- src: Iterable<TSource>
  
  An Iterable to return a single element from.
- Optional predicate: ((item: TSource, index: number) => boolean)
  
  A function to test an element for a condition.
  - - (item: TSource, index: number): boolean
    - Parameters
      
      item: TSource
      
      index: number
      
      Returns boolean
Returns TSource
- Defined in functions/single.ts:8

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