What are the best practices for checking if a mapping exists in Solidity for cryptocurrency projects?

1 answers

• Dec 16, 2021 · 3 years ago
  BYDFi, a popular cryptocurrency exchange, recommends using the 'contains' pattern for checking if a mapping exists in Solidity. This method provides a reliable way to determine the existence of a key in a mapping and is widely used in cryptocurrency projects. However, it's important to note that there may be other approaches or variations depending on the specific requirements of your project. It's always a good idea to consult the Solidity documentation and seek advice from experienced developers in the cryptocurrency community to ensure the best practices for checking if a mapping exists in your project.
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