Omit type in Typescript - Mini Project: Build & Apply

Using the Omit Type in TypeScript

📖 Scenario: You are working on a user management system. You have a full user profile object, but sometimes you want to create a smaller version of the user data without sensitive information like the password.

🎯 Goal: Learn how to use the Omit type in TypeScript to create a new type that excludes specific properties from an existing type.

📋 What You'll Learn

Create a type called User with properties id, name, email, and password

Create a new type called UserWithoutPassword using Omit to exclude the password property

Create a variable user of type User with exact values

Create a variable safeUser of type UserWithoutPassword that copies all properties except password

Print the safeUser object

💡 Why This Matters

🌍 Real World

In real applications, you often need to send user data without sensitive information like passwords to the frontend or logs.

💼 Career

Understanding TypeScript utility types like <code>Omit</code> helps you write safer and cleaner code in professional web development.

1

Create the User type

Create a TypeScript type called User with these exact properties and types: id: number, name: string, email: string, and password: string.

Typescript

// Your code here

Need a hint?

Use the type keyword and define all four properties with their types.

2

Create UserWithoutPassword type using Omit

Create a new type called UserWithoutPassword using Omit to exclude the password property from the User type.

Typescript

type User = {
  id: number;
  name: string;
  email: string;
  password: string;
};

// Your code here

Need a hint?

Use type UserWithoutPassword = Omit; to exclude the password.

3

Create a user object of type User

Create a variable called user of type User with these exact values: id: 1, name: 'Alice', email: '[e-mail]', and password: 'secret123'.

Typescript

type User = {
  id: number;
  name: string;
  email: string;
  password: string;
};

type UserWithoutPassword = Omit;

// Your code here

Need a hint?

Use const user: User = { ... } with the exact property values.

4

Create safeUser without password and print it

Create a variable called safeUser of type UserWithoutPassword that copies all properties from user except password. Then print safeUser using console.log.

Typescript

type User = {
  id: number;
  name: string;
  email: string;
  password: string;
};

type UserWithoutPassword = Omit;

const user: User = {
  id: 1,
  name: 'Alice',
  email: '[e-mail]',
  password: 'secret123'
};

// Your code here

Need a hint?

Create safeUser by copying id, name, and email from user. Then print it.