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Ethereum Error: Typeerror – incorrect value similar to bytes
As a developer, it is necessary to understand and solve problems that may occur when working with intelligent contracts based on Ethereum. In this article, we delve into “Typeerror: an incorrect error of a byte similar value”, which you experience when testing functions at the GitHub repository.
What is the error?
The error occurs when trying to access the abnormal value of “bytes similar” in the “Try” block of the test file. In particular, this is related to the “value” parameter transmitted to the “Openraffle ()” function.
Understanding Ethereum Bajtes
In Ethereum, “About similar bytes are used to represent data in bytes. When working with intelligent contracts, you often have to manipulate these bytes to access and manipulate data. However, when testing functions that are based on “bytes similar to”, it is crucial to ensure that the input data is correct.
code
Here is an example fragment of the code from the test file:
`Javascript
// Lottery opening or closing function
Const {Openraffle, Closeffle} = requires ("lottery");
Async Function Main () {
to try {
// try to access the incorrect value similar to bytes
Const raffle = Openraffle expectation ([1, 2, 3]); // incorrect entrance: []
} catch (error) {
console.error (error);
}
}
main();
problem
In this example, the “OpenRAFFLE ()function is called using the '[]' 'board, which represents incorrect data. This activates the "Typeerror: Incorrect Bajt -like error" error.
Solution
To solve this problem, you need to make sure that the input data is correct before transferring them to the "OpenRAFFLE ()" function. Here are some solutions:
1. Check the input data
You can add checking checks to the test file to check that the input data meet the expected requirements. For example:
Javascript
Async Function Main () {
to try {
Const raffle = Openraffle expectation ([1, 2, 3]); // correct entrance: [1, 2, 3]
Console.log (lottery); // Exit: {Open: True, closed: false}
} catch (error) {
console.error (error);
}
}
2. Use ‘buffer’ instead of a board
You can convert the input data to the buffer using the “buffer.from ():
Javascript
Async Function Main () {
to try {
const raffle = expect openraffle (buffer.from ([1, 2, 3]); // correct entrance: buffer (3) {1, 2, 3}
Console.log (lottery); // Exit: {Open: True, closed: false}
} catch (error) {
console.error (error);
}
}
3. Use data structure with correct bytes
You can define a data structure representing the correct values of “similar bytes”, such as object or interface:
`Javascript
rafflestate interface {
Open: Boolean;
Closed: Boolean;
}
Async Function Main () {
to try {
Const raffle = Waiting Openraffle (new Rafflestate ()); // correct entrance: {Open: True, closed: false}
Console.log (lottery); // Exit: {Open: True, closed: false}
} catch (error) {
console.error (error);
}
}
In summary, there is a “Typeerror: value similar to bytes” error occurs when trying to access the incorrect value of “bytes similar to the test file. By adding checks for checking correctness or using data structure with correct bytes, you can prevent this error and make sure that the tests have started successfully.
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