Function head

head<K, V>(x: Lists<K, V>, ed?: [K, V]): [K, V]
Get first entry from lists (default order).

Returns
[k₀, v₀] if x ≠ Φ else ed | [k₀, v₀] ∈ x
Type Parameters
- K
- V
Parameters
- x: Lists<K, V>
  
  lists
- ed: [K, V] = ...
  
  default entry
Returns [K, V]
- Defined in index.ts:328

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