bootstrap-vue-3/src/utils/normalize-slot.ts

Early (but lovely) implementation of Vue 3, Bootstrap 5 and Typescript

import {VNode} from '@vue/runtime-core'
import {Slots} from 'vue'
import {isFunction} from './inspect'

export const normalizeSlot = (name: string, scope = {}, $slots: Slots = {}): VNode => {
  // Ensure names is an array
  const names = [name]
  let slot
  for (let i = 0; i < names.length && !slot; i++) {
    const name = names[i]
    slot = $slots[name]
  }
  // Note: in Vue 3.x, slots have been unified. No more scoped slots and all slots are exposed as functions
  return (slot && isFunction(slot) ? slot(scope) : slot) as unknown as VNode
}