@hat-open/util
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    Function _findIndex

    • _findIndex<T>(
          fn: (val: T, index?: number, arr?: T) => boolean,
          arr: T[],
      ): undefined | number

      Find element's index/key in array or object for which provided function returns true

      Until element is found, provided function is called for each element with arguments: current element, current index/key and initial container.

      If searched element is not found, undefined is returned.

      Type Parameters

      • T

      Parameters

      • fn: (val: T, index?: number, arr?: T) => boolean
      • arr: T[]

      Returns undefined | number

    • _findIndex<T>(
          fn: (val: T, key?: string, obj?: Record<string, T>) => boolean,
          obj: Record<string, T>,
      ): undefined | string

      Find element's index/key in array or object for which provided function returns true

      Until element is found, provided function is called for each element with arguments: current element, current index/key and initial container.

      If searched element is not found, undefined is returned.

      Type Parameters

      • T

      Parameters

      • fn: (val: T, key?: string, obj?: Record<string, T>) => boolean
      • obj: Record<string, T>

      Returns undefined | string

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