Understand the code style and best practice of Leola's programming language
LEOLA programming language is a common, type secure script language, focusing on providing simple, flexible and efficient programming experience.It has its own unique code style and best practice to help developers write high -quality code that is easy to read, maintain and expand.This article will introduce the code style and best practice of the LELA programming language, and provide some Java code example for reference.
1. Code style
1. Endorsement: It is recommended to use four spaces as indentation.
2. Width: It is recommended that each line of code does not exceed 80 characters to avoid the difficulty of reading and maintenance.
3. Naming specifications: Variables and function names adopt a small hump naming method, and the class name adopts the big hump -type naming method.Naming must be descriptive and readable, and avoid the use of abbreviations and meaningless names.
4. Change: After the binary computing symbol, change the line to keep the operator at the beginning of the new line.In the function call or declaration, the comma is placed at the end of the new line.
2. Best practice
1. Type Declaration: Recommended specified types when variable declarations, improve the readability and type security of the code.
var age: int = 25
2. Note: Use appropriate annotations in the code to explain the logic, purpose, and important details of the code.The note should be clear and concise, and should be updated in a timely manner with the change of the code.
// Calculate the area of the circle
var area: float = PI * radius * radius
3. Abnormal processing: Use the TRY-Catch statement in the code block that needs to be processed, and perform appropriate abnormal treatment or log records in the CATCH block.
try {
// May throw an abnormal code
} catch (Exception e) {
// Abnormal processing logic
}
4. Error treatment: It is recommended to use the return value or abnormality to deal with errors to avoid using System.exit () and other methods to exit the program directly.
5. Code reuse: Try to avoid repeated code, and encapsulate the replication code into functions or classes to improve the maintenance of the code.
6. Introduce module: When using an external class library or module, use the Import statement to introduce it, and pay attention to using the appropriate naming to avoid naming conflicts.
import java.util.*
7. Unit test: Write the unit test during the development process to verify the correctness of the code and maintain a good test coverage.
@Test
public void testAddition() {
int result = Calculator.add(2, 3);
assertThat(result, is(5));
}
By following the code style and best practice of the LELA programming language, developers can write high -quality code with more readability, maintenance and scalability.This helps improve the programming experience, improve development efficiency and code quality.