CompileするとABIとOpcodeがもらえる！

ABI - Frontendと繋げるJSON形式

Opcode - EVMを動かすためのコード > It is related to gas fee.

What is Opcode?

■ Bytecode

When we compile the solidity code using the solc compiler, it will translate our code into bytecode, something only the EVM can understand.

EVM is a virtual machine which places between OS and application layer to mitigate OS dependency.

<aside> 💡 application > EVM > OS e.g) Uniswap > EVM > Ethereum

</aside>

EVM bytecode👇

6080604052348015600f57600080fd5b5060878061001e600039600
0f3fe6080604052348015600f57600080fd5b5060043610602857600
03560e01c8063037a417c14602d575b600080fd5b60336049565b60
40518082815260200191505060405180910390f35b60006001905090
56fea265627a7a7230582050d33093e20eb388eec760ca84ba30ec42
dadbdeb8edf5cd8b261e89b8d4279264736f6c634300050a0032

[Link](https://medium.com/@blockchain101/solidity-bytecode-and-opcode-basics-672e9b1a88c2#:~:text=Opcodes are the low level,opcodes and their hexadecimal values.)

All smart contract source codes is compiled into two formats, by the Ethereum Virtual Machine (EVM)

・Application Binary Interface (ABI): a communication layer between solidity and Javascript, in JSON format ・Bytecode: the low-level machine language that gets executed by the EVM