Combining Js string & array methods to develop search program

case-insensitive-search.js

/**
 * Performs a case-insensitive search through an array of strings.
 *
 * @param {string[]} products - The array of strings to search through.
 * @param {string} searchTerm - The term to search for (case-insensitive).
 * @returns {string[]} An array containing the matching strings from the input array.
 */
function caseInsensitiveSearch(products, searchTerm) {
  // Convert everything to lowercase for case-insensitive comparison
  const lowercaseProducts = products.map(product => product.toLowerCase());
  const lowercaseSearchTerm = searchTerm.toLowerCase();

  // Find matching products
  const matchingProducts = lowercaseProducts.filter(product => product === lowercaseSearchTerm);

  return matchingProducts;
}

// Example usage:
const products = ["Apple", "Banana", "Orange", "Grape"];
const searchTerm = "apple";

const matchingProducts = caseInsensitiveSearch(products, searchTerm);
console.log("Matching products:", matchingProducts); // Output: ["apple"]

case-insensitive-search.ts

/**
 * Performs a case-insensitive search through an array of strings.
 *
 * @param products - The array of strings to search through.
 * @param searchTerm - The term to search for (case-insensitive).
 * @returns An array containing the matching strings from the input array.
 */
function caseInsensitiveSearch(products: string[], searchTerm: string): string[] {
  // Convert everything to lowercase for case-insensitive comparison
  const lowercaseProducts = products.map(product => product.toLowerCase());
  const lowercaseSearchTerm = searchTerm.toLowerCase();

  // Find matching products
  const matchingProducts = lowercaseProducts.filter(product => product === lowercaseSearchTerm);

  return matchingProducts;
}

// Example usage:
const products: string[] = ["Apple", "Banana", "Orange", "Grape"];
const searchTerm: string = "apple";

const matchingProducts: string[] = caseInsensitiveSearch(products, searchTerm);
console.log("Matching products:", matchingProducts); // Output: ["apple"]