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including the return of return @Solana/Web3.js v2: Guide
As a developer working with Solana Web3.js v2, you may have encountered situations where you need to find or find the right type of return value. In this article, we will explore how to do this.
Understanding the Problem
@Solana/Web3.js v2 types are used to define the form and structure of the data. By calling the features on Solana Blockchain, you are usually transferring the parameters as an array or object with certain types. However, when the function returns the value, it is not always clear what this return value is.
basic types @solana/web3.js v2
To understand how to infer the type of return, let’s first review some of the basic ways available in Solana Web3.js v2:
Uint8array: 256 unsigned 8 -bit numbers array
- Retr
Bytes32: 32 Byte Data Block coded as byte array
String: Unicode Character Sequence
Bigint: Arbitrary Accuracy, Decimal Number
Fixed64: Fixed Point 64 -Bit Value with Accuracy Up To 18 Digits
Discover the Ways of Return
You need to analyze the signature of the feature and all the parameters passed to infer the type of return. Here are some tips:
- check the signature of the feature : check out the function name, argument and the type of return.
- analyze the types of parameters : Check that each argument has a specific type (eg
uint8array,u8, etc.). You can use the operatorTypeofor ‘instanceof’ to check the type of argument.
3
Functions in the Housing Search Data Types
: If the Return Value is stored as a byte array, you may be able to conclude its size by analyzing how it is encoded.
Example: Return Type Of Return
Let’s take a Simple Example:
`JavaScript
Const location = async (account: string) => {
// ... Logic of Placement ...
};
In this case, the function «place» is the «account» with the type «string». The return value is preserved as a byte array.
To infer its size, we can analyze the function of the Function:
`JavaScript
Const location = async (account: string) => {
// ... Logic of Placement ...
Const score = wait for placement incount (account);
Console.log (result.lendt); // prints 24 bytes
};
In this case, the return value is the byte array with 24 elements.
FINDING RETURN TYPES
If you are not sure about the type of function or its return value, you can use the following methods:
1
use @solana/web3.js v2 Documentation : Check @Solana/Web3.Js V2 Official Documentation to See What Ways are Expected For Each Signature of the Function.
- check the code base : check out your project or library source code to see how the return values are processed and concluded.
3
Use type tester such as `ts-jest ‘or’ Jest-ex-extended ‘:
These libraries can help you discover mistakes and conclude ways.
In conclusion, @solana/web3.js v2 basic types of finding or finding returns to values include the function of the signature, parameter type, and data structures that are preserved as a return. By following these tips and tools such as checkers and documentation, solana can write a more stable and maintained code.