Typescript 类型签名 function 对象数组参数

Question

What is the syntax to define onChange in this interface:

interface myInterface{
   data: Type1
   onChange : ({field: string, value: any}[]) => void
}

It gives me compile error on '=>' (; expected) I want to say onChange receives an array of field-value pair and return type is void. What is the syntax?

Answer 1

Your forgot about :

interface myInterface{
  data: Type1
  onChange: (arr: {field: string, value: any}[]) => void
}