What is chaining method?

Chaining method, also known as method chaining, is a programming technique where multiple methods are called on an object in a single line of code. Instead of writing separate lines for each method call, the return value of each method is used to call the next method in the chain.

This technique is commonly used in object-oriented programming languages to improve code readability and reduce the number of temporary variables. It allows for a more concise and fluent style of coding, as the code flows from left to right, making it easier to understand and maintain.

Here's an example in Python:

```python
class MyClass:
def method1(self):
# do something
return self

def method2(self):
# do something else
return self

def method3(self):
# do another thing
return self

# Chaining methods
obj = MyClass()
obj.method1().method2().method3()
```

In this example, the methods `method1()`, `method2()`, and `method3()` are called in a chain on the `obj` object. Each method returns `self`, allowing the next method to be called on the same object.