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Javascript – Validate object property in Yup

a have object like this

const foo = {
 person: {
 name:"Jon",
 sex:"men"
}, 
 job: "drinker"
};

When i use console.log(foo.person.name) l got undefined. And can’t validate my object

Question: how i can validate foo.person.name.

Tags:

2

Answers


  1. 0

    You can use optional chaining and pre check if the value exists or not.

    const foo = {
  person: {
    name: "Jon",
    sex: "men"
  },
  job: "drinker"
};
const name = foo?.person?.name ?? "Name is not available";
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  2. 0

    Yup is a schema builder for runtime value parsing and validation.
    So defining the correct datatype is very crucial. In your case you are trying to define a object, so you can try something like:

      const obj = object({
  person: object({
        name: string().min(3).lowercase().trim() 
        sex: string().max(4).lowercase().trim()
        }),
      job: string().max(10) //add what validations you need
  })
  .json()

    If you need further help with this you can go through Yup Readme on npm

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