وبلاگ
Metamask: metamask documentation for frontend development
Metask documentation Frontende Development
Understanding with them as a developer with intelligent intelligent agreements with them is crucial. Metask is a necessary tool for doing this, and its documentation provides valuable information about parameters and calls of JavaScript files to interact with smart contracts.
What is Metamark?
Metask is a browser extension that can interact with developers with decentralized applications (DAPP) built on a variety of Blockchain platforms. It allows users to implement, manage and enter into intelligent contracts directly in their browser without an external block chain or contract implementation tool.
Convention to understand intelligent parameters and calls
When you interact with intelligent contracts implemented by Metaski, you will meet more parameters and calls that you need to understand to write an effective JavaScript code. Here are some key concepts to understand:
parameters
Intelligent contracts usually have feed parameters used to customize the behavior or production of the contracts. These parameters can be accessed by using the “parameters” field on the contract interface.
Example:
`Javascript
Bring {contract} 'web3nativemartcontract';
// Specify the task of the contract
MyContractFunction function () {
// Set the income parameter values
Const a = 10;
Const B = 20;
Turn {
// Call the task of a contract with parameters
(param1, param2) => {
Returns myContractfunction.Call ({
Parameters: [A, B],
});
},
};
}
// implement the metask agreement
Const = new agreement ('mychact', '0x ...');
// call the parameters activities using the Contract exploration
Contract.myContractfunction (5) .sen ((result) => {
Console.log (result); // Departure: {exit: ...}
});
Calls
Intelligent contracts can be called using the "petition" method that takes the item of options as an argument. The "settings" of the object contains anparameter field that defines the call parameters of the call.
Example:
`Javascript
Bring {contract} 'web3nativemartcontract';
// Specify the task of the contract
MyContractFunction function () {
// Call the agreement and return value with parameters
Returns a new promise ((resolve, reject) => {
Const a = 10;
Const B = 20;
This.Call ({
Parameters: [A, B],
// Call the return value (optional)
Call call: (result) => solution (result),
});
}.prototype);
}
// implement the metask agreement
Const = new agreement ('mychact', '0x ...');
// Call the agreement and return value with parameters
Contract.myContractfunction (5, { / return value /})
. Then ((result) => {
Console.log (result); // Exit: 30
})
.Catch ((error) => {
Console.error (error);
});
`
Tips for JavaScript Code
When you write an effective JavaScript code to interact with intelligent contracts implemented by Metaski:
- Read the contract interface carefully : Understand parameters, call signatures and return the types of contract functions you try.
2
- Manage errors and calls : Be ready to manage possible errors or call values while interacting with smart contracts implemented.
After understanding these guidelines and Metard documentation, you intend to create an effective interaction with the intelligent contracts implemented in Fentand applications.
