- sum<ELEMENT_TYPE>(array, counter): number
 
- 
Type Parameters
- 
ELEMENT_TYPE extends unknown
 
Parameters
- 
array: readonly ELEMENT_TYPE[]
 
- 
counter: ((element) => number)
- 
- (element): number
 
- 
Parameters
- 
element: Readonly<ELEMENT_TYPE>
 
 
Returns number
 
 
 
 
Returns number