Conteúdo do Curso
Python Data Structures
Python Data Structures
Insert() Method
What if we want to add an item not at the end of the list, but at a specific position? For this purpose, we use the insert() method. Let's take a list called states as an example:
This list contains six items:
| Statement | Value |
states[0] | 'Washington' |
states[1] | 'Florida' |
states[2] | 'Georgia' |
states[3] | 'California' |
states[4] | 'New Mexico' |
states[5] | 'Colorado' |
For instance, if we want to insert 'Hawaii' at the beginning of the list, we would:
After this, 'Hawaii' takes the 0 index. It's now at the top, and the rest of the items have shifted down. So, we now have 7 items:
| Statement | Value |
states[0] | 'Hawaii' |
states[1] | 'Washington' |
states[2] | 'Florida' |
states[3] | 'Georgia' |
states[4] | 'California' |
states[5] | 'New Mexico' |
states[6] | 'Colorado' |
Let's say we want 'New York' right before 'Georgia'. Since Georgia is at index 3, we'll give that index to New York.
Here's how:
Previously, 'Georgia' was at index 3. Now 'New York' occupies that spot. Georgia and all items following it have moved down:
| Statement | Value |
states[0] | 'Hawaii' |
states[1] | 'Washington' |
states[2] | 'Florida' |
states[3] | 'New York' |
states[4] | 'Georgia' |
states[5] | 'California' |
states[6] | 'New Mexico' |
states[7] | 'Colorado' |
Note
With the
insert()function, you can add only one item at once.
Tarefa
You have this list:
list_1 = ['ABBA', 'Aerosmith', 'The Animals', 'The Kinks']
You should modify it to:
list_1 = ['Kraftwerk', 'ABBA', 'Aerosmith', 'The Animals', 'New Order', 'The Kinks', 'The Orioles']
If you're unsure about the indices for inserting items, refer to the hints. Only use positive indexing. Insert 'Kraftwerk' first, 'New Order' second, and 'The Orioles' last.
Tudo estava claro?
Conteúdo do Curso
Python Data Structures
Python Data Structures
Insert() Method
What if we want to add an item not at the end of the list, but at a specific position? For this purpose, we use the insert() method. Let's take a list called states as an example:
This list contains six items:
| Statement | Value |
states[0] | 'Washington' |
states[1] | 'Florida' |
states[2] | 'Georgia' |
states[3] | 'California' |
states[4] | 'New Mexico' |
states[5] | 'Colorado' |
For instance, if we want to insert 'Hawaii' at the beginning of the list, we would:
After this, 'Hawaii' takes the 0 index. It's now at the top, and the rest of the items have shifted down. So, we now have 7 items:
| Statement | Value |
states[0] | 'Hawaii' |
states[1] | 'Washington' |
states[2] | 'Florida' |
states[3] | 'Georgia' |
states[4] | 'California' |
states[5] | 'New Mexico' |
states[6] | 'Colorado' |
Let's say we want 'New York' right before 'Georgia'. Since Georgia is at index 3, we'll give that index to New York.
Here's how:
Previously, 'Georgia' was at index 3. Now 'New York' occupies that spot. Georgia and all items following it have moved down:
| Statement | Value |
states[0] | 'Hawaii' |
states[1] | 'Washington' |
states[2] | 'Florida' |
states[3] | 'New York' |
states[4] | 'Georgia' |
states[5] | 'California' |
states[6] | 'New Mexico' |
states[7] | 'Colorado' |
Note
With the
insert()function, you can add only one item at once.
Tarefa
You have this list:
list_1 = ['ABBA', 'Aerosmith', 'The Animals', 'The Kinks']
You should modify it to:
list_1 = ['Kraftwerk', 'ABBA', 'Aerosmith', 'The Animals', 'New Order', 'The Kinks', 'The Orioles']
If you're unsure about the indices for inserting items, refer to the hints. Only use positive indexing. Insert 'Kraftwerk' first, 'New Order' second, and 'The Orioles' last.
Tudo estava claro?
