ANI

The gentle introduction gets Python Programmers

The gentle introduction gets Python Programmers
Photo by the writer

Obvious Introduction

You have installed the epython codes for a while, completely interesting you, and can write about your sleep decorating. But there is a wicked voice in your head saying you should read the Scriptures. Perhaps this is the full passage, or maybe tired of explaining why Python is completely good “to get large codes.

Here's something: Tyraycript is not just “JavaScript with kinds.” Which javascript should be from the beginning. And when you come from the Spython, you're already understanding more than your thinking.

Obvious From the Python to Typript

Python gives you a type of duck and strong flexibility. Typcript gives you the same flexibility and security net. Think about it as Mypy of Pypy If myypy is actually working everywhere.

In Python, you can call any method in any item and “hope” applies. Tyraycript tells you at time of combining that it will work, save you for those "AttributeError: 'NoneType' object has no attribute 'name'" times.

# Python: You hope this works
def process_user(user):
    return user.name.upper()

// TypeScript: You know this works
function processUser(user: User): string {
    return user.name.toUpperCase();
}

If user does not have a name Property, TylessacRept hosting before your code is running. So you don't need to protect yourself if hasattr(obj, 'attribute') Checks everywhere.

Obvious The foundations of adoption

Let's start with the basics of writing.

// Variable and basic types

The Python brand plans are suggested for options. Types of species are like compulsory contracts. Good News? Tyraycript can enter many types of types automatically, so you don't need to move everything.

# Python
name = "Alice"
age = 30
is_active = True
scores = [95, 87, 92]
user = {"name": "Bob", "age": 25}

// TypeScript
const name = "Alice";          // string (inferred)
const age = 30;                // number (inferred)
const isActive = true;         // boolean (inferred)
const scores = [95, 87, 92];   // number[] (inferred)
const user = { name: "Bob", age: 25 }; // object (inferred)

// Or be explicit
const name: string = "Alice";
const scores: number[] = [95, 87, 92];

You only need visual explanations when detections are not visible or when you want more clarity for your purposes.

// Functions

Syntax maps are almost directly straight, but access to default parameters are cleaner than sweet Pythchas.

# Python
def greet(name: str, excited: bool = False) -> str:
    suffix = "!" if excited else "."
    return f"Hello, {name}{suffix}"

// TypeScript
function greet(name: string, excited = false): string {
    const suffix = excited ? "!" : ".";
    return `Hello, ${name}${suffix}`;
}

// Or arrow function (Python lambda equivalent)
const greet = (name: string, excited = false): string => 
    `Hello, ${name}${excited ? "!" : "."}`;

Arrow Funct Syntax is like zython's lambda, but it has great power. You can write the complete bodies of a single or one-liners. Template Themels (those deception) are just working Python's F.

// Classes

Written classes are not more encrypted than Python classes. Never again self Everywhere, and building parameters can be automatic automatically.

# Python
class User:
    def __init__(self, name: str, email: str):
        self.name = name
        self.email = email
    
    def greet(self) -> str:
        return f"Hi, I'm {self.name}"

// TypeScript
class User {
    constructor(public name: string, public email: string) {}
    
    greet(): string {
        return `Hi, I'm ${this.name}`;
    }
}

That public Keyword in Shorthand Shorthand of the word “Create this property automatically and give the amount of parameter to it.” So you don't have to use self.name = name Boilerplate. You can also use private or protected to close.

Obvious Where it is interesting

This is when TyrayCriPT begins to feel interesting as you move on the foundations.

// Union types (Python's Union but better)

Python's Union Types from a module typing work, but sometimes the tests. The types of characters are built in the tongue.

# Python
from typing import Union
def process_id(user_id: Union[str, int]) -> str:
    return str(user_id)

// TypeScript
function processId(userId: string | number): string {
    return userId.toString();
}

This page | Syntax cleanser than Union[str, int]And the Tyraycript Conversation can make you look at a lot of type. You know what methods available depends on some type at the start time.

// Literature

Python's true types are new but useful. Typcript, however, has practical types that are practical.

# Python
from typing import Literal
Status = Literal["pending", "approved", "rejected"]

def update_status(status: Status) -> None:
    print(f"Status: {status}")

// TypeScript
type Status = "pending" | "approved" | "rejected";

function updateStatus(status: Status): void {
    console.log(`Status: ${status}`);
}

Try to transfer invalid rope such as “maybe” to updateStatusand books refuse to cover. Your editor will automatically provide for valid options. It is like having an ENUM is actually useful.

// Area from

Python's DataAclass ready to create a formal data:

# Python
from dataclasses import dataclass

@dataclass
class User:
    name: str
    email: str
    age: int

But encounter in Tyrancescriber is more flexible. They described the information without creating a specific class implementation.

// TypeScript
interface User {
    name: string;
    email: string;
    age: number;
}

// Use it anywhere
const user: User = { name: "Alice", email: "[email protected]", age: 30 };

Any item with the right structures automatically satisfy the interface. No estate is required, no obvious anticipation is required. Dudent type of verification.

Obvious Learned for Many Frieve Factors

Now let's learn a few more helpful features of TyaysCript.

// Generics (as Python's TypeVarSelected

Typical types of Python, but Clunky. The Transcription version feels nature and is strong out of the box.

# Python
from typing import TypeVar, List
T = TypeVar('T')

def first(items: List[T]) -> T:
    return items[0]

// TypeScript
function first(items: T[]): T {
    return items[0];
}

// Works with anything
const firstNumber = first([1, 2, 3]);      // number
const firstString = first(["a", "b", "c"]);  // string

Typcript is in tyxic shouting first with numbers, and returns the number. Call it with ropes, and returns the cord. No clear parameters are needed, but you can give when detection is not clear.

// Type the guards

Type security guards and let you sign up with the running checks to run the checked checks and use smaller types in the following code.

function isString(value: unknown): value is string {
    return typeof value === "string";
}

function processValue(value: string | number) {
    if (isString(value)) {
        return value.toUpperCase();
    }
    return value.toFixed(2);
}

This page value is string Syntax relates that when this work returns to the truth, the parameter is definitely a string. Inside the block, you find full straw and buildings. No broadcast, nothing is said, just typing the wisdom based on your test period.

// Types made of maximum (types of types)

Consider the types of map – such as types of lists, but in the nature of species. They allow they to build new species for the alteration.

type User = {
    name: string;
    email: string;
    age: number;
};

// Make all properties optional
type PartialUser = Partial;

// Make all properties readonly
type ReadonlyUser = Readonly;

// Pick specific properties
type UserContact = Pick;

These kinds of shipbacks of a ship is in color and solve regular patterns. If you need a type of user but in the optional stadiums of renewal, you can use Partial. And if you need to ensure that there is no modification behind creation, use Readonly.

Obvious Error to handle in TylessacRIPT

Python developers liked to try / without blocks, but they can get a perfose. Tyraycript uses a different approach that uses the effects of the effects and types of an error management union that makes mistakes clarifying your operating events:

// Result type pattern (inspired by Rust)
type Result = { success: true; data: T } | { success: false; error: E };

// Make this file a module
export {};

// Assuming you have a User type and parseUser function
interface User {
    name: string;
    // ... other properties
}

function parseUser(data: unknown): User {
    // Your parsing logic here
    // This should throw an error if parsing fails
    if (!data || typeof data !== 'object') {
        throw new Error('Invalid user data');
    }
    
    const user = data as any;
    if (!user.name || typeof user.name !== 'string') {
        throw new Error('User name is required and must be a string');
    }
    
    return { name: user.name };
}

async function safeParseUser(data: unknown): Promise> {
    try {
        const user = parseUser(data);
        return { success: true, data: user };
    } catch (error) {
        // Fix: Handle the case where error might not have a message property
        const errorMessage = error instanceof Error ? error.message : String(error);
        return { success: false, error: errorMessage };
    }
}

You can use it as a:

// Usage (wrapped in an async function or use at top level in a module)
async function example() {
    const rawData = { name: "John Doe" }; // Example data
    const result = await safeParseUser(rawData);

    if (result.success) {
        console.log(result.data.name); // TypeScript knows this is User
    } else {
        console.error(result.error);   // TypeScript knows this is string
    }
}

// Call the example function
example();

This pattern makes mistakes specifying the form of the type. Instead of flying out around the invisible, the errors are part of the form of return. This page Result The nature ofces you force you to deal with both of the charges and fails. Discrimination of Discrimination Typry makes this simple amount: Success property means which union branch you entered, so you know that data or error is available.

Obvious Store

Tyraycript starts the most popular in the development of the web, high-scale programs, wherever you need strong Apis.

Changes are not learning a new language. It is by using everything you know about Good Software Design in a different ecosystem. Your Python Thion of your clean code, the APIs are read, and thoughtful thinking is directly translates.

So, open the VS code, create a .ts File, and start installing codes. The worst thing that happens? You learn something new. Good thing? You may find your new favorite language. Codes?

Count Priya c He is the writer and a technical writer from India. He likes to work in mathematical communication, data science and content creation. His areas of interest and professionals includes deliefs, data science and natural language. She enjoys reading, writing, codes, and coffee! Currently, he works by reading and sharing his knowledge and engineering society by disciples of teaching, how they guide, pieces of ideas, and more. Calculate and create views of the resources and instruction of codes.

Source link

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button