CODEWITHSUNDEEP
typescript
Phillip Shim
Phillip Shim

Reputation: 23

Element implicitly has an 'any' type because expression of type

This is the full error I get when I hover on data[command] in limit-entries.ts

(parameter) data: dataProps Element implicitly has an 'any' type because expression of type '"hourly"' can't be used to index type 'dataProps'. Property 'hourly' does not exist on type 'dataProps'

darkSkyApiTypes.ts

interface dataProps {
  data: {
    latitude: number
    longitude: number
    timezone: string
    currently?: {
      time: number
      summary: string
      temperature: number
      humidity: number
    }
    hourly?: {
      summary: string
      icon?: string
      data: {
        time: number
        temperature: number
        humidity: number
      }[]
    }
    daily?: {
      summary: string
      icon?: string
      data: {
        time: number
        temperatureMin: number
        temperatureMax: number
        humidity: number
      }[]
    }
  }
}

export = dataProps

limit-entries.ts

import { hourlyLimit } from '../config'
import dataProps from '../API/darkSkyAPITypes'

const limitEntries = (data: dataProps, command: string) => {
  let entries

  switch (command) {
    case 'currently':
      entries = data[command]
      break
    case 'hourly':
      entries = data[command].data.slice(0, hourlyLimit)
      break
    case 'daily':
      entries = data[command].data
      break
    default:
      entries = data[command]
  }

  return entries
}

module.exports = limitEntries

I get the error in title. Help!

Upvotes: 0

Views: 413

Answers (1)

T.J. Crowder
T.J. Crowder

Reputation: 1074295

dataProps defines an object type with a single top-level property called data. Your data variable is of type dataProps, so you'd need data.data to refer to that property. So where you have data[command], you should have data.data[command]. (Or change the definition of dataProps.)

Upvotes: 1

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