Lisk (LSK) is a blockchain platform that was designed to make it easy for developers to create their own decentralized applications. One of the unique features of Lisk is its use of JavaScript, a popular programming language that is widely used in web development. By allowing developers to write code in JavaScript, Lisk makes it easier for them to create and deploy dApps on the platform.

Lisk was created in 2016 by Max Kordek and Oliver Beddows, who wanted to create a platform that was easy to use and accessible to developers of all levels. The platform uses its own custom blockchain, which is secured using a delegated proof of stake (DPoS) consensus algorithm. DPoS is a consensus algorithm that allows token holders to vote for "delegates" who are responsible for validating transactions and maintaining the network. This system is designed to be more efficient and scalable than traditional proof of work (PoW) or proof of stake (PoS) consensus algorithms.

One of the key features of Lisk is its software development kit (SDK), which provides a range of tools and features for developers who want to create dApps on the platform. The SDK includes sidechains, which allow developers to create their own custom blockchains that are linked to the main Lisk blockchain. This allows developers to create dApps that are tailored to their specific needs, without having to worry about scalability issues or network congestion.

Lisk has a strong and active community of developers and users, who are constantly working to improve and expand the platform. In 2018, Lisk released a major update that introduced several new features and enhancements, including sidechains, a new consensus algorithm, and a new user interface. This update also included a new dynamic fees system, which allows users to pay transaction fees in LSK tokens rather than in a separate cryptocurrency.

In 2021, Lisk launched a new version of its SDK, which includes several new features and enhancements designed to make it even easier for developers to create dApps on the platform. Some of the new features included in the updated SDK include a new API, which makes it easier for developers to interact with the Lisk blockchain, and a new user interface, which provides a more intuitive and streamlined experience for developers.

Overall, Lisk is a powerful and flexible blockchain platform that offers a range of features and tools for developers who want to create their own decentralized applications. With its innovative consensus algorithm, robust SDK, and strong community of developers and users, Lisk is poised to play a key role in the future of decentralized technology.

Lisk uses a custom version of JavaScript called Lisk Script, which is designed specifically for building blockchain applications and smart contracts on the Lisk network. Lisk Script is a simple, lightweight, and secure language that is similar to standard JavaScript, but with additional features and syntax that make it optimized for blockchain development.

Lisk Script includes a number of built-in functions and libraries that make it easy to write complex smart contracts, such as on-chain storage, events, and transactions. Lisk Script also includes a number of security features, such as strict data typing and automatic garbage collection, which help to prevent common security vulnerabilities in smart contracts, such as buffer overflows and memory leaks.

In addition to Lisk Script, developers also need to be familiar with the Lisk blockchain and its architecture. Lisk is a delegated proof-of-stake (DPoS) blockchain that uses a voting system to elect a set of delegates who validate transactions and secure the network. Lisk is designed to be highly scalable and developer-friendly, with a number of features and tools to help developers build and deploy smart contracts and applications.

To get started with smart contract development on Lisk, developers can use the Lisk SDK, which provides a number of tools and features to make it easy to build and deploy custom applications and smart contracts on the Lisk blockchain. The Lisk developer portal also provides comprehensive documentation, tutorials, and examples to help developers get started with building on the Lisk ecosystem. There are also a number of online communities and resources that can provide additional support and guidance for smart contract development on Lisk.