Here, we will figure out how to discover and print the file of the first coordinated component of a list? To discover the list of a component, we use list.index(element) technique.
Given a list and we need to discover the record of first coordinated of a list in Python.
Example:
Input:
List = [10, 20, 10, 20, 30, 40, 50]
element = 10
Output:
Index of first matched 10 is: 0
Input:
List = [10, 20, 10, 20, 30, 40, 50]
element = 30
Output:
Index of first matched 20 is: 4
list.index() Method:
It’s an inbuilt technique in Python, it restores the list of a first coordinated component of a list.
Syntax:
list.index(element)
Here, the list is the name of the list and component is the component/thing whose originally coordinated file to be returned.
Program to discover the file of the first coordinated component in Python:
# declare a list of Integers
list = [10, 20, 10, 20, 30, 40, 50]
# printing index of 10
print (list.index (10))
#printing index of 20
print (list.index (20))
# printing index of 30
print (list.index (30))
# printing index of 40
print (list.index (40))
# printing index of 50
print (list.index (50))
Output:
0
1
4
5
6