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samo

on April 13, 2023

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Solidity Programming Examples for Beginners and Developers

Introduction Solidity is the most widely used programming language for writing smart contracts on blockchain platforms like Ethereum. Learning Solidity becomes much easier when you understand real, practical coding examples. These examples help developers grasp how smart contracts function, store data, and execute transactions. This guide covers simple yet essential Solidity programming examples to build a strong foundation. Basic Structure of a Solidity Smart Contract Every Solidity program follows a standard structure that defines the contract, compiler version, and logic. // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; contract HelloWorld { string public message = "Hello, Blockchain!"; } Explanation: pragma defines the compiler version contract is similar to a class in traditional programming public allows anyone to read the variable Example 1: Storing and Updating Data This example demonstrates how to store and update data on the blockchain. // SPDX-Lice...

What Is Solidity Programming Language? step by step guide

Introduction Solidity is a powerful programming language designed specifically for building smart contracts on blockchain platforms. It plays a crucial role in decentralized applications (DApps), especially within the Ethereum ecosystem. As blockchain adoption grows, learning Solidity has become essential for developers entering Web3 and decentralized finance. This guide explains what Solidity is, how it works, and why it is important in modern blockchain development. Understanding Solidity Programming Language Solidity is a high-level, statically typed programming language used to write smart contracts that run on the Ethereum Virtual Machine (EVM). These smart contracts define rules and automate transactions without requiring intermediaries. Solidity syntax is influenced by languages like JavaScript, Python, and C++, making it relatively accessible for developers with prior programming experience. Smart contracts written in Solidity are immutable once deployed, meaning they cannot be...

(.JS) show_hide_menu on a click

<! DOCTYPE html > < html lang = "en" > < head > < meta charset = "UTF-8" > < meta http-equiv = "X-UA-Compatible" content = "IE=edge" > < meta name = "viewport" content = "width=device-width, initial-scale=1.0" > < title > sample </ title > </ head > < body > < p id = "demo" > hello world </ p > < button onclick = " fun () " id = "menu" > hide </ button > </ body > < script > function fun () { if ( document . getElementById ( "demo" ). style . display != "none" ) { document . getElementById ( "demo" ). style . display = "none" document . getElementById ( "menu" ). innerHTML = "show" } ...

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