Part 1 Part 2 Part 3 Part 4

Inserting Elements

# Python

alist = ['apple', 'banana', 'cherry']
alist.insert('apple', 'a')  # alist is now ['apple', 'a', 'banana', 'cherry']

%%js
// Javascript

let alist = ['apple', 'banana', 'cherry'];

// Find the index of 'apple'
const index = alist.indexOf('apple');

// Insert 'a' before 'apple'
if (index !== -1) {
    alist.splice(index, 0, 'a'); // 0 indicates no elements to remove
}

console.log(alist); // Output: ['a', 'apple', 'banana', 'cherry']

Removing Elements

# Python

aList.remove('kiwi')  # Removes 'kiwi' from the list
print(aList)  # Output: ['apple', 'banana', 'cherry', 'grape']

%%js
// Javascript

let aList = ['apple', 'banana', 'cherry', 'kiwi', 'grape']; // Find the index of 'kiwi'

if (index !== -1) {
    aList.splice(index, 1);  // Removes 'kiwi' from the list
}
console.log(aList);  // Output: ['apple', 'banana', 'cherry', 'grape']

Deleting an element

You can use the del statement to remove an item at a specific index.

# Python

del aList[2]  # Deletes 'cherry' at index 2
print(aList)  # Output: ['apple', 'banana', 'grape']

%%js
// Javascript

let aList = ['apple', 'banana', 'cherry', 'grape'];

// Delete the element at index 2
aList.splice(2, 1); // Removes 1 element at index 2

console.log(aList); // Output: ['apple', 'banana', 'grape']