contract development - How to quickly test a Solidity function? - Ethereum Stack Exchange

One way is to use Remix, the browser-based Solidity realtime compiler and runtime Solidity (formerly named browser-solidity).

1. Paste the code in Remix.

2. Wrap the function inside a contract if needed. (Example: contract C { ... }.)

3. Click Contract tab and then Create to instantiate the contract.

4. Enter the desired input next to the function.
   • For bytes1 ... bytes32, use a quoted hex string, example "0xabcdef" for bytes3.
   • For bytes, use an array of hex strings, example: ["0xab", "0xcd", "0xef"].
   • For strings, make sure they are quoted.
   • For large numbers, make sure they are quoted too.
   • For an array, use [], example: ["hello", 42, "0xabcd"]

5. Click the function to get the Result. The Result is ABI encoded.

Here is an example screenshot: