Coding Practice challenges

Practice problem statements with input format, output format, constraints and solutions.

beginner

Coding Practice Intro challenge

Build a small solution that uses Coding Practice Intro in Coding Practice and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

// Practice Template for Coding Practice Intro
function executePractice() {
  console.log("Executing coding practice routine for Coding Practice Intro");
}
executePractice();

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core coding practice intro pattern before polishing the final output.

Solution

// Practice Template for Coding Practice Intro solution
function executePractice() {
  console.log("Executing coding practice routine for Coding Practice Intro solution");
}
executePractice();
beginner

Variables and Types Practice challenge

Build a small solution that uses Variables and Types Practice in Coding Practice and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

// Practice Template for Variables and Types Practice
function executePractice() {
  console.log("Executing coding practice routine for Variables and Types Practice");
}
executePractice();

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core variables and types practice pattern before polishing the final output.

Solution

// Practice Template for Variables and Types Practice solution
function executePractice() {
  console.log("Executing coding practice routine for Variables and Types Practice solution");
}
executePractice();
beginner

Conditional Branching Practice challenge

Build a small solution that uses Conditional Branching Practice in Coding Practice and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

// Practice Template for Conditional Branching Practice
function executePractice() {
  console.log("Executing coding practice routine for Conditional Branching Practice");
}
executePractice();

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core conditional branching practice pattern before polishing the final output.

Solution

// Practice Template for Conditional Branching Practice solution
function executePractice() {
  console.log("Executing coding practice routine for Conditional Branching Practice solution");
}
executePractice();
beginner

Looping Iteration Practice challenge

Build a small solution that uses Looping Iteration Practice in Coding Practice and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

// Coding Practice Task
function solve(inputs) {
  return inputs.filter(item => item.active).map(item => item.value * 2);
}
console.log(solve([{ active: true, value: 5 }, { active: false, value: 3 }]));

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core looping iteration practice pattern before polishing the final output.

Solution

// Coding Practice Task
function solve(inputs) {
  return inputs.filter(item => item.active).map(item => item.value * 2);
}
console.log(solve([{ active: true, value: 5 }, { active: false, value: 3 }]));
beginner

String Manipulations challenge

Build a small solution that uses String Manipulations in Coding Practice and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

// Practice Template for String Manipulations
function executePractice() {
  console.log("Executing coding practice routine for String Manipulations");
}
executePractice();

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core string manipulations pattern before polishing the final output.

Solution

// Practice Template for String Manipulations solution
function executePractice() {
  console.log("Executing coding practice routine for String Manipulations solution");
}
executePractice();
beginner

Array Processing Basics challenge

Build a small solution that uses Array Processing Basics in Coding Practice and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

// Coding Practice Task
function solve(inputs) {
  return inputs.filter(item => item.active).map(item => item.value * 2);
}
console.log(solve([{ active: true, value: 5 }, { active: false, value: 3 }]));

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core array processing basics pattern before polishing the final output.

Solution

// Coding Practice Task
function solve(inputs) {
  return inputs.filter(item => item.active).map(item => item.value * 2);
}
console.log(solve([{ active: true, value: 5 }, { active: false, value: 3 }]));
beginner

Array Advanced Transformations challenge

Build a small solution that uses Array Advanced Transformations in Coding Practice and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

// Coding Practice Task
function solve(inputs) {
  return inputs.filter(item => item.active).map(item => item.value * 2);
}
console.log(solve([{ active: true, value: 5 }, { active: false, value: 3 }]));

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core array advanced transformations pattern before polishing the final output.

Solution

// Coding Practice Task
function solve(inputs) {
  return inputs.filter(item => item.active).map(item => item.value * 2);
}
console.log(solve([{ active: true, value: 5 }, { active: false, value: 3 }]));
beginner

Object Property Manipulations challenge

Build a small solution that uses Object Property Manipulations in Coding Practice and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

// Practice Template for Object Property Manipulations
function executePractice() {
  console.log("Executing coding practice routine for Object Property Manipulations");
}
executePractice();

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core object property manipulations pattern before polishing the final output.

Solution

// Practice Template for Object Property Manipulations solution
function executePractice() {
  console.log("Executing coding practice routine for Object Property Manipulations solution");
}
executePractice();
beginner

Function Design Patterns challenge

Build a small solution that uses Function Design Patterns in Coding Practice and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

// Practice Template for Function Design Patterns
function executePractice() {
  console.log("Executing coding practice routine for Function Design Patterns");
}
executePractice();

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core function design patterns pattern before polishing the final output.

Solution

// Practice Template for Function Design Patterns solution
function executePractice() {
  console.log("Executing coding practice routine for Function Design Patterns solution");
}
executePractice();
beginner

Recursion Coding Tasks challenge

Build a small solution that uses Recursion Coding Tasks in Coding Practice and handles one normal case plus one edge case.

Input format

Use a short text value, array, query, or sample object depending on the topic.

Output format

Print, render, or return the processed result in a readable format.

Constraints

  • Keep the solution under 60 lines.
  • Use descriptive names.
  • Do not depend on hidden external services.

Starter code

// Practice Template for Recursion Coding Tasks
function executePractice() {
  console.log("Executing coding practice routine for Recursion Coding Tasks");
}
executePractice();

Test cases

  • basic sample - valid processed result
  • empty or small sample - safe fallback result

Hint

Focus on the core recursion coding tasks pattern before polishing the final output.

Solution

// Practice Template for Recursion Coding Tasks solution
function executePractice() {
  console.log("Executing coding practice routine for Recursion Coding Tasks solution");
}
executePractice();