helixml / demo-recipes

Data Structures and Logic - helixml/demo-recipes

In the demo-recipes project, data structures and logic are used to manipulate recipe information and user preferences. Here are some examples of how this is done:

  1. Arrays: Arrays are used to store and manipulate lists of data. For example, an array could be used to store a list of recipes, with each element in the array representing a single recipe.

Example:

const recipes: Recipe[] = [
{ name: 'Spaghetti', ingredients: ['noodles', 'tomato sauce', 'meatballs'] },
{ name: 'Pizza', ingredients: ['dough', 'tomato sauce', 'cheese', 'toppings'] },
// more recipes...
];
  1. Objects: Objects are used to store and manipulate key-value pairs of data. For example, an object could be used to store a single recipe, with each key representing a different property of the recipe.

Example:

const recipe: Recipe = {
name: 'Spaghetti',
ingredients: ['noodles', 'tomato sauce', 'meatballs']
};

  1. Linked Lists: Linked lists are used to store and manipulate data in a linear sequence, where each element points to the next element in the sequence. While not explicitly used in the demo-recipes project, linked lists are a fundamental data structure that could be used to improve performance in certain situations.

  2. Trees: Trees are used to store and manipulate hierarchical data structures, where each element has a parent and/or children. For example, a tree could be used to represent a category hierarchy of recipes.

Example:

const recipeTree: RecipeTree = {
name: 'Main Dishes',
children: [
{
name: 'Pasta',
children: [
{ name: 'Spaghetti', ingredients: ['noodles', 'tomato sauce', 'meatballs'] },
// more pasta recipes...
]
},
{
name: 'Pizza',
ingredients: ['dough', 'tomato sauce', 'cheese', 'toppings']
},
// more main dishes...
]
};
  1. Graphs: Graphs are used to store and manipulate data in a non-linear sequence, where each element can be connected to any other element. For example, a graph could be used to represent relationships between recipes, such as “similar” or “related” recipes.

Example:

const recipeGraph: RecipeGraph = {
nodes: [
{ name: 'Spaghetti', ingredients: ['noodles', 'tomato sauce', 'meatballs'] },
{ name: 'Pizza', ingredients: ['dough', 'tomato sauce', 'cheese', 'toppings'] },
// more recipes...
],
edges: [
{ from: 'Spaghetti', to: 'Pizza' },
// more relationships...
]
};
  1. Stacks and Queues: Stacks and queues are used to store and manipulate data in a specific order, where elements are added and removed in a specific way. For example, a stack could be used to implement a “undo” feature, where the most recent actions are the first to be undone.

Example:

const actionStack: Action[] = [];

// Add an action to the stack
actionStack.push({ type: 'ADD_INGREDIENT', ingredient: 'noodles' });

// Remove the most recent action from the stack
actionStack.pop();
  1. Sorting Algorithms: Sorting algorithms are used to sort data in a specific order. For example, a sorting algorithm could be used to sort recipes by name, cooking time, or calorie count.

Example:

// Sort recipes by name
recipes.sort((a, b) => a.name.localeCompare(b.name));
  1. Search Algorithms: Search algorithms are used to find specific data within a larger dataset. For example, a search algorithm could be used to find recipes that contain a specific ingredient.

Example:

// Find recipes that contain the ingredient 'cheese'
const cheeseRecipes = recipes.filter(recipe => recipe.ingredients.includes('cheese'));

Sources: