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Understanding When to Use Promise<> in TypeScript: A Comprehensive Guide

By Md Shoriful Islam
**Introduction**   In TypeScript, asynchronous programming is a fundamental concept for handling operations that take time to complete, such as fetching data from an API, reading files, or querying a database. One of the key tools for managing asynchronous operations is the `Promise` object, and when defining function return types, you often see `Promise<>` used to specify what a function will eventually return. But when should you set a function's type as `Promise<>`? This blog post explores the scenarios where `Promise<>` is appropriate, why it matters, and provides practical examples to illustrate its usage. **What is a Promise in TypeScript?**   A `Promise` in JavaScript and TypeScript represents a value that may not be available yet but will be resolved at some point in the future, either successfully with a result or with an error. TypeScript enhances this by allowing developers to define the shape of the resolved value using generics, like `P...
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12 Best Websites to Practice Coding for Beginners

By Md Shoriful Islam
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COURSES LOCATIONS CAREER SERVICES ABOUT US ENTERPRISE RESOURCES APPLY NOW 12 Best Websites to Practice Coding for Beginners Posted by Flatiron School  /  August 16, 2021 Facebook Twitter Email Share Learning to code has become one of the most essential skills for people entering the tech industry — but where do you start if you don’t already know how? There are plenty of places to practice coding for beginners, so find out the best and jump right in. READING TIME 6 MINS Indeed’s “ Best Jobs of 2020 ” ranked America’s most highly prized careers based on demand, pay, and potential for growth. Some of these included: software architect (1), full-stack developer (2), Java developer (6), data scientist (7), and IT security specialist (9). That means that of the top ten best jobs in America, half of them required coding skills. ‌ But, if you don’t have coding skills, where do you go to learn them? Some may turn to their local library, and others may have the time and money...
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Using Generic in TypeScript about types in the Code

By Md Shoriful Islam
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# Using Generic in TypeScript about types \<T> in the Code ## Question 1: Here what is this <T> means? ```typescript const addID = <T>(obj: T) => {   let ID = Math.floor(Math.random() * 100);   return ({...obj, ID}); } ``` ## Answer 1: In the code snippet you've provided, `<T>` is a **generic type parameter** in TypeScript. It allows you to write a function that can work with any type of object while still maintaining that object's specific type information. When you use the function `addID`, you can pass in an object of any type, and TypeScript will understand that the returned object will be of the same type as the input, plus the additional `ID` property. Here's a breakdown of how it works: ```typescript const addID = <T>(obj: T) => {   let ID = Math.floor(Math.random() * 100);   return ({...obj, ID}); } ``` - `<T>`: Declares a generic type `T`. - `(obj: T)`: Indicates that the function takes an argument `obj` of type `T`....
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Solution: Codeforces Round #827 (Div. 4) Editorial

By Md Shoriful Islam
  Solution: Codeforces Round #827 (Div. 4) Editorial 1742A - Sum Idea:  flamestorm Tutorial 1742A - Sum You only need to write an if statement and check if any of these are true:  a + b = c a + b = c ,  b + c = a b + c = a ,  c + a = b c + a = b . Solution #include < bits / stdc ++. h > using namespace std ; const int MAX = 200007 ; const int MOD = 1000000007 ; void solve () { int a , b , c ; cin >> a >> b >> c ; cout << (( a + b == c || c + a == b || b + c == a ) ? "YES\n" : "NO\n" ); } int main () { ios :: sync_with_stdio ( false ); cin . tie ( nullptr ); int tt ; cin >> tt ; for ( int i = 1 ; i <= tt ; i ++) { solve ();} // solve(); } 1742B - Increasing Idea:  mesanu Tutorial 1742B - Increasing If there are two elements with the same value, then the answer is  NO , because neither of these values is less than the other. Otherwise, the answer...
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