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What Is the Primary Function of the ERC-20 Token Standard?

The ERC-20 standard defines a common set of rules for fungible tokens on the Ethereum blockchain. Its primary function is to ensure tokens are interchangeable and easily interact with smart contracts, wallets, and decentralized exchanges.

Key functions include transfer , balanceOf , and approve , which enable basic token operations and interaction with other protocols. This standardization is crucial for interoperability.

What Is the Fundamental Difference between Fungible and Non-Fungible Tokens in a Financial Context?
What Is the ERC-20 Token Standard?
How Does a Token Standard like ERC-20 Differ from ERC-721?
Can a Non-Fungible Token (NFT) Be Fractionalized, and What Standard Governs This?