Typescript Property does not exist on type object

Question

I have the follow setup and when I loop through using for   of and get an error of    Property  quot country quot  doesn t exist on type  quot object quot    Is this a correct way to loop through each object in array and compare the object property value  let countryProviders  object     export function GetAllProviders        allProviders             region   quot r 1 quot   country   quot US quot   locale   quot en-us quot   company   quot co 1 quot             region   quot r 2 quot   country   quot China quot   locale   quot zh-cn quot   company   quot co 2 quot             region   quot r 4 quot   country   quot Korea quot   locale   quot ko-kr quot   company   quot co 4 quot             region   quot r 5 quot   country   quot Japan quot   locale   quot ja-jp quot   company   quot co 5 quot             for  let providers of allProviders          if  providers country      quot US quot        error here          countryProviders push providers

User · Accepted Answer

You probably have allProviders typed as object   as well  And property country does not exist on object  If you don t care about typing  you can declare both allProviders and countryProviders as Array lt any gt    let countryProviders  Array lt any gt   let allProviders  Array lt any gt     If you do want static type checking  You can create an interface for the structure and use it   interface Provider       region  string      country  string      locale  string      company  string    let countryProviders  Array lt Provider gt   let allProviders  Array lt Provider gt

User · Answer

If your object could contain any key value pairs  you could declare an interface called keyable like   interface keyable        key  string   any      then use it as follows   let countryProviders  keyable     or let countryProviders  Array lt keyable gt

[javascript] Typescript : Property does not exist on type 'object'

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