Apa itu looping di Python?

Question

For example, if we want to show a message 100 times, then we can use a loop. It's just a simple example; you can achieve much more with loops.

Table of Contents Show

Flowchart of Python for Loop
Example: Loop Over Python List
Python for Loop with Python range()
Python for loop with else
Apa itu fungsi looping?
Apa itu while loop Python?
Apa saja statement Loop yang disediakan oleh Python?
While loop apa?

There are 2 types of loops in Python:

In Python, the for loop is used to run a block of code for a certain number of times. It is used to iterate over any sequences such as list, tuple, string, etc.

The syntax of the for loop is:

for val in sequence:
    # statement(s)

Here,

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

0 accesses each item of sequence on each iteration. Loop continues until we reach the last item in the sequence.

Flowchart of Python for Loop

Working of Python for loop

Example: Loop Over Python List

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

Output

Swift
Python
Go
JavaScript

In the above example, we have created a list called languages.

Initially, the value of

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

1 is set to the first element of the array,i.e.

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

2, so the print statement inside the loop is executed.

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

1 is updated with the next element of the array and the print statement is executed again. This way the loop runs until the last element of an array is accessed.

Python for Loop with Python range()

A range is a series of values between two numeric intervals.

We use Python's built-in function

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

4 to define a range of values. For example,

values = range(4)

Here, 4 inside

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

4 defines a range containing values 0, 1, 2, 3.

In Python, we can use for loop to iterate over a range. For example,

# use of range() to define a range of values
values = range(4)

# iterate from i = 0 to i = 3
for i in values:
    print(i)

Output

In the above example, we have used the for loop to iterate over a range from 0 to 3.

The value of

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

8 is set to 0 and it is updated to the next number of the range on each iteration. This process continues until 3 is reached.

IterationConditionAction1st

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

9

Swift
Python
Go
JavaScript

0 is printed.

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

8 is increased to 1.2nd

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

9

Swift
Python
Go
JavaScript

3 is printed.

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

8 is increased to 2.3rd

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

9

Swift
Python
Go
JavaScript

6 is printed.

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

8 is increased to 3.4th

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

9

Swift
Python
Go
JavaScript

9 is printed.

languages = ['Swift', 'Python', 'Go', 'JavaScript']

# access items of a list using for loop
for language in languages:
    print(language)

8 is increased to 4.5th

values = range(4)

1The loop is terminated

Note: To learn more about the use of for loop with range, visit Python range().

Python for loop with else

A for loop can have an optional

values = range(4)

4 block as well. The

values = range(4)

4 part is executed when the loop is finished. For example,

digits = [0, 1, 5]

for i in digits:
    print(i)
else:
    print("No items left.")

Output

0
1
5
No items left.

Here, the for loop prints all the items of the digits list. When the loop finishes, it executes the

values = range(4)

4 block and prints

values = range(4)

8

Apa itu fungsi looping?

Loop berguna saat kita ingin melakukan sebuah perintah yang perlu dijalankan berulang-ulang seperti melakukan perhitungan maupun melakukan visualisasi terhadap banyak variabel secara serentak. Hal ini tentu saja membantu kita karena kita tidak perlu menulis sejumlah sintaks yang berulang-ulang.

Apa itu while loop Python?

1.While Loop. Ekspresi yang dimaksud merupakan suatu kondisi atau keadaan yang kita buat. Selama nilai yang diulang masih sesuai dengan ekspresi yang sudah ditetapkan yang berarti True dan tidak bernilai 0 maka while akan terus berjalan.

Apa saja statement Loop yang disediakan oleh Python?

Di dalam bahasa pemrograman Python pengulangan dibagi menjadi 3 bagian, yaitu :.

While Loop..

For Loop..

Nested Loop..

While loop apa?

While Loop adalah metode perulangan dimana ada kondisi yang harus dipenuhi supaya looping bisa berjalan terus. While Loop mengulangi eksekusi sub diagram didalamnya sampai terminal kondisi menerima nilai Boolean tertentu. Nilai Boolean tergantung dari sifat dari While Loop.