/objectively-funcy

Primary LanguageJavaScript

Objectively Funcy

What we're doing today is writing functions that can manipulate the object passed in.

Setup

  • Fork
  • Clone
  • Install dependencies with npm install
  • Run the tests with npm run test

Tasks

  • getFirstName - returns the value of the firstName property of the given person object

    • getFirstName({firstName: 'Colin', lastName: 'Jaffe'}) // -> 'Colin'
    • getFirstName({firstName: 'Petra', lastName: 'Solano'}) // -> 'Petra'

  • getLastName - returns the value of the lastName property of the given person object

    • getLastName({firstName: 'Colin', lastName: 'Jaffe'}) // -> 'Jaffe'
    • getLastName({firstName: 'Petra', lastName: 'Solano'}) // -> 'Petra'

  • getFullName - returns the value of the firstName property plus the lastName property with a space in the middle for the given person object

    • getFullName({firstName: 'Colin', lastName: 'Jaffe'}) // -> 'Colin Jaffe'
    • getFullName({firstName: 'Petra', lastName: 'Solano'}) // -> 'Petra Solano'

  • setFirstName - changes the value of the firstName property of the given person object to the given value

    • setFirstName({firstName: 'Colin', lastName: 'Jaffe'}, 'Redacted') // -> {firstName: 'Redacted', lastName: 'Jaffe'}
    • setFirstName({firstName: 'Petra', lastName: 'Solano'}, 'Anthony') // -> {firstName: 'Anthony', lastName: 'Solano'}

  • setAge - changes the value of the age property of the given person object to the given value

    • setAge({firstName: 'Colin', lastName: 'Jaffe', age: 39}, 45) // -> {firstName: 'Colin', lastName: 'Jaffe', age: 45}
    • setAge({firstName: 'Petra', lastName: 'Solano', age: 29}, 35) // -> {firstName: 'Petra', lastName: 'Solano', age: 35}

  • giveBirthday - increments by 1 the age property of the given person object, or gives them an age of 1 if they don't have that property

    • giveBirthday({firstName: 'Colin', lastName: 'Jaffe', age: 39}) // -> {firstName: 'Colin', lastName: 'Jaffe', age: 40}
    • giveBirthday({firstName: 'Petra', lastName: 'Solano', age: 29}) // -> {firstName: 'Solano', lastName: 'Solano', age: 30}
    • giveBirthday({firstName: 'Baby', lastName: 'Jaffe'}) // -> {firstName: 'Baby', lastName: 'Jaffe', age: 1}

  • marry - sets the marital status of both given people to true and sets each person's spouseName property to be the full name of the other

const person1 = {firstName: 'Colin', lastName: 'Jaffe', married: false}
const person2 = {firstName: 'Petra', lastName: 'Solano', married: false}
marry(person1, person2)
console.log(person1) // -> {firstName: 'Colin', lastName: 'Jaffe', married: true, spouseName: 'Petra Solano'}
console.log(person2) // -> {firstName: 'Petra', lastName: 'Solano', married: true, spouseName: 'Colin Jaffe'}
  • divorce - changes the marital status to false and removes the spouseName property from both given people
const person1 = {firstName: 'Colin', lastName: 'Jaffe', married: true, spouseName: 'Petra Solano'}
const person2 = {firstName: 'Petra', lastName: 'Solano', married: true, spouseName: 'Colin Jaffe'}
divorce(person1, person2);
console.log(person1) // -> {firstName: 'Colin', lastName: 'Jaffe', married: false} 
console.log(person2) // -> {firstName: 'Petra', lastName: 'Solano', married: false}

Tips

  • For getFullName, don't set a fullName property on the given object. Just give the caller of the function back a new value based on the first name and last name
  • For giveBirthday, you'll need to have some way to tell if the key age is already in the given person
  • For marry, you can re-use your getFullName function in order to get each person's spouseName. Just pass in the person whose fullName you want, and you'll get back your new spouseName property
  • Same as above for divorce; you'll need to research a way to REMOVE the key spouseName from the given people. Simply setting the properties to undefined or null won't be sufficient