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Contracts pallet vs. EVM

Contracts pallet

The Contracts pallet provides the ability for the runtime to deploy and execute WebAssembly (Wasm) smart contracts. It uses ink!, a Rust-based embedded domain specific language (eDSL) for writing WebAssembly smart contracts.
Here are some of ink!'s key features:
  • Designed for correctness, conciseness and efficiency, ink! carries familiar concepts from other modern smart contract languages. Learn more about how it compares to Solidity.
  • ink! provides a built in test environment that can be used to perform off-chain unit testing with the Rust framework. This makes it simple and easy to ensure that your contract code functions as expected, without the need for third party testing platforms. Learn more here
  • Because ink! follows Rust standards, tools like rustfmt and rust-analyzer already work out of the box.

EVM pallet

The FRAME EVM pallet provides an EVM execution environment for Substrate's Ethereum compatibility layer, known as Frontier. It allows unmodified EVM code to be executed in a Substrate-based blockchain, designed to closely emulate the functionality of executing contracts on the Ethereum mainnet within the Substrate runtime.
It works alongside with the Ethereum pallet and the Dynamic Fee pallet to enable the creation of runtimes capable of fully emulating Ethereum block production and transaction processing.
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