ChatGPT Prompts for Developers: Code Explanation

Vigo Webs
4 min readFeb 28, 2024

Writing a prompt for code explanation involves providing clear instructions and context for developers to analyze and explain a given piece of code. Here is a prompt template for code explanations

Prompt Title: Explain [Add your technology] Code

Description:
You are tasked with analyzing and explaining the provided [Add your technology] code snippet. Your explanation should cover the purpose of the code, its functionality, and any important concepts or techniques used.

Instructions:

  1. Read the provided [Add your technology] code carefully.
  2. Write a detailed explanation of what the code does, step by step.
  3. Describe any variables, functions, or logic used in the code and their roles.
  4. Identify any important concepts, algorithms, or techniques employed.
  5. Discuss the efficiency, readability, and potential improvements of the code.
  6. Provide examples or scenarios where the code might be useful.
  7. Offer suggestions for alternative approaches or optimizations, if applicable.

Code Snippet:

// Insert the provided [Add your technology] code snippet here

Additional Notes:

  1. Focus on clarity and thoroughness in your explanation.
  2. Use comments or annotations to highlight key parts of the code.
  3. Consider the target audience’s level of expertise and adjust the explanation accordingly.
  4. Feel free to refer to relevant documentation or external resources to support your analysis.

This prompt provides developers with clear instructions on how to analyze and explain a given code snippet. Adjust the instructions and additional notes based on the complexity of the code and the level of expertise of the developers.

Example prompts for JavaScript code explanation

Explain JavaScript Code.

  1. You are tasked with analyzing and explaining the provided JavaScript code snippet. Your explanation should cover the purpose of the code, its functionality, and any important concepts or techniques used Read the provided JavaScript code carefully.
  2. Write a detailed explanation of what the code does, step by step.
  3. Describe any variables, functions, or logic used in the code and their roles.
  4. Identify any important concepts, algorithms, or techniques employed.
  5. Discuss the efficiency, readability, and potential improvements of the code.
  6. Provide examples or scenarios where the code might be useful.
  7. Offer suggestions for alternative approaches or optimizations, if applicable.
function sortArray(inputArray) {

const sortedArray = inputArray.slice();

// Bubble Sort algorithm
for (let i = 0; i < sortedArray.length - 1; i++) {
for (let j = 0; j < sortedArray.length - i - 1; j++) {
// Compare adjacent elements and swap if necessary
if (sortedArray[j] > sortedArray[j + 1]) {
// Swap elements
let temp = sortedArray[j];
sortedArray[j] = sortedArray[j + 1];
sortedArray[j + 1] = temp;
}
}
}

return sortedArray;
}

Focus on clarity and thoroughness in your explanation.

  • Use comments or annotations to highlight key parts of the code.
  • Consider the target audience’s level of expertise and adjust the explanation accordingly.
  • Feel free to refer to relevant documentation or external resources to support your analysis.

ChatGPT Response

Function Definition:

  • The code defines a JavaScript function named sortArray that takes one parameter: inputArray, which represents the array to be sorted.

Copying the Input Array:

  • Inside the function, the input array is copied using the slice() method to avoid modifying the original array. This ensures that the sorting operation does not affect the original array passed to the function.

Bubble Sort Algorithm:

  • The function implements the Bubble Sort algorithm to sort the elements of the copied array (sortedArray) in ascending order.
  • Bubble Sort works by repeatedly stepping through the list of elements, comparing each pair of adjacent elements, and swapping them if they are in the wrong order.

Nested Loops:

  • Two nested loops are used to iterate over the elements of the array.
  • The outer loop (for (let i = 0; i < sortedArray.length - 1; i++)) controls the number of iterations, ensuring that the sorting process stops once all elements are in their correct positions.
  • The inner loop (for (let j = 0; j < sortedArray.length - i - 1; j++)) iterates over the elements of the array and performs comparisons and swaps.

Comparison and Swap:

  • Within the inner loop, adjacent elements are compared (sortedArray[j] and sortedArray[j + 1]).
  • If the current element is greater than the next element, they are swapped to ensure that the smaller element moves towards the beginning of the array.

Returning the Sorted Array:

  • After the sorting process is completed, the function returns the sorted array (sortedArray).

Efficiency and Potential Improvements:

  • Bubble Sort has a time complexity of O(n²), which means it may not be the most efficient algorithm for large arrays. Consider using more efficient sorting algorithms like Merge Sort or Quick Sort for better performance.
  • The code could be optimized by adding a check to see if the array is already sorted before starting the sorting process, which can improve efficiency in certain cases.

Example Usage:

  • The function can be used to sort arrays containing various data types such as integers, floats, or strings. For example:
const unsortedArray = [3, 1, 4, 1, 5, 9, 2, 6, 5];
const sortedArray = sortArray(unsortedArray);
console.log(sortedArray); // Output: [1, 1, 2, 3, 4, 5, 5, 6, 9]

This explanation provides a detailed understanding of the provided JavaScript code snippet, covering its purpose, functionality, implementation details, efficiency considerations, and potential improvements.

For more, ChatGPT developers prompts check out my ebook
https://vigowebs.gumroad.com/l/prompts-for-developers/ANVD07

--

--