top of page
learn_data_science.jpg

Data Scientist Program

 

Free Online Data Science Training for Complete Beginners.
 


No prior coding knowledge required!

Arrays in Python

The idea of arrays comes from that we have multiple variables of the same type and we want to put them together like this

name1 = 'Ahmed'
name2 = 'Ali'
name3 = 'Manar'

We put them in one array called "names"

names = ['Ahmed','Ali','Manar']

Access the Elements of an Array

You refer to an array element by referring to the index number.

x = names[1]
print(x)
Ali

Modify a value in the array

names[0] = "John"
print(names)
['John', 'Ali', 'Manar']

The Length of an Array

Use the len() method to return the length of an array (the number of elements in an array).

x = len(names)
print(x)
3

Looping Array Elements

You can use the for in loop to loop through all the elements of an array.

for i in names:
  print(i)
John
Ali
Manar

Adding Array Elements

You can use the append() method to add an element to an array.

names.append("Hoda")
print(names)
['John', 'Ali', 'Manar', 'Hoda']

Removing Array Elements

You can use the remove() method to remove an element from the array.

names.remove("Hoda")
print(names)
['John', 'Ali', 'Manar']

You can refer to the code form here 

0 comments

Recent Posts

See All

Commentaires


bottom of page