Array Insertion at Beginning in DSA Python - Build from Scratch

Array Insertion at Beginning

📖 Scenario: You are managing a list of daily tasks. Sometimes, you get an urgent task that needs to be done first. You want to add this urgent task at the beginning of your task list.

🎯 Goal: Build a program that inserts a new task at the beginning of an existing list of tasks.

📋 What You'll Learn

Create a list called tasks with exact tasks: 'email', 'meeting', 'coding'

Create a variable called urgent_task with the value 'call'

Insert the urgent_task at the beginning of the tasks list

Print the tasks list after insertion

💡 Why This Matters

🌍 Real World

Managing daily tasks or priorities often requires adding urgent items at the start of a list to handle them first.

💼 Career

Understanding how to manipulate lists by inserting items at specific positions is a fundamental skill in programming and data handling.

1

Create the initial list of tasks

Create a list called tasks with these exact strings in order: 'email', 'meeting', 'coding'

DSA Python

# Create the list called tasks with 'email', 'meeting', 'coding'
# Your code here

Hint

Use square brackets [] to create a list and separate items with commas.

2

Add the urgent task variable

Create a variable called urgent_task and set it to the string 'call'

DSA Python

tasks = ['email', 'meeting', 'coding']
# Create urgent_task variable with value 'call'
# Your code here

Hint

Use the equals sign = to assign the string 'call' to urgent_task.

3

Insert the urgent task at the beginning

Use the insert method on tasks to add urgent_task at index 0

DSA Python

tasks = ['email', 'meeting', 'coding']
urgent_task = 'call'
# Insert urgent_task at the beginning of tasks
# Your code here

Hint

The insert method takes two arguments: the index and the item to add.

4

Print the updated tasks list

Print the tasks list to show the updated order after insertion

DSA Python

tasks = ['email', 'meeting', 'coding']
urgent_task = 'call'
tasks.insert(0, urgent_task)
# Print the tasks list
# Your code here

Hint

Use print(tasks) to display the list.