DeveloperBreeze

Template Literal Types Development Tutorials, Guides & Insights

Unlock 1+ expert-curated template literal types tutorials, real-world code snippets, and modern dev strategies. From fundamentals to advanced topics, boost your template literal types skills on DeveloperBreeze.

Tutorial
typescript

Advanced TypeScript: Type Inference and Advanced Types 

type Action = 'create' | 'update' | 'delete';
type Entity = 'user' | 'post';

type LogMessage = `${Action}_${Entity}`;

function logAction(action: LogMessage) {
  console.log(`Logging action: ${action}`);
}

logAction('create_user'); // valid
logAction('update_post'); // valid
// logAction('read_user'); // error
function getProperty<T, K extends keyof T>(obj: T, key: K): T[K] {
  return obj[key];
}

const person = { name: 'Alice', age: 30 };

const name = getProperty(person, 'name'); // valid
const age = getProperty(person, 'age');   // valid
// const gender = getProperty(person, 'gender'); // error

Aug 05, 2024
Read More