Defining the parameter type of an object in Typescript

I have a piece of code where foo.bar is currently defined as type any. What steps can I take to change it to be explicitly declared as type number?

  const foo = {} as any

  foo.bar = 4 as number

Answer №1

If you're uncertain about all the properties that will be present, you have the option to define them as optional.

type MyObj = {
  myProp?: string
}

const obj: MyObj = {}
obj.myProp = "hello"

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