Function findIndex

findIndex<T>(array: T[], callback: ((element: T, index: number, array: T[]) => boolean)): number | null
Finds the index of the first element in an array that satisfies a given callback function.

Returns
the index of the first element that satisfies the callback function, or null if no element satisfies the callback function
Type Parameters
- T
Parameters
- array: T[]
  
  the input array
- callback: ((element: T, index: number, array: T[]) => boolean)
  
  the function to test each element with
  - - (element: T, index: number, array: T[]): boolean
    - Parameters
      
      element: T
      
      index: number
      
      array: T[]
      
      Returns boolean
Returns number | null
- Defined in src/arrays.ts:272

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