How to add elements at the beginning of a list in Python
In this post we will give you information about How to add elements at the beginning of a list in Python. Hear we will give you detail about How to add elements at the beginning of a list in PythonAnd how to use it also give you demo for it if it is necessary.
we are going to learn about two different ways to add a new elements to the beginning of a list in Python.
Using insert() method
To add a element at the beginning of a list, we can use the insert() method in python.
The insert() method accepts two arguments, the first argument is index of an element, and the second argument is value that is inserted in that index.
Here is an example:
list = [2,3,4]list.insert(0, 1) # adding 1 at beginningprint(list) # [1,2,3,4]
Using [] and + operators
We can also use the [] and + plus operators to insert a new element at the beginning of a list.
Example:
list = [2,3,4]result = [1] + list # adding 1 at beginningprint(result) # [1,2,3,4]
In the above example, we have concantenated two lists using + operator.
You can also add multiple elements at the beginning of a list like this:
list = [3,4,5]result = [0, 1, 2] + list # adding 0,1,2 at beginningprint(result)
Output:
[0, 1, 2, 3, 4, 5]
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