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Showing posts from September, 2023

How to make a todo app in react native with CRUD

Hey There awesome developers.  source code is attached at the end of this article  1. Initializing Local States In the TodoScreen.js file, you'll notice that we initialize local states using the useState hook. These states include todo, todoList, and editedTodo. This allows us to manage and update the app's data dynamically.  2. Adding a Todo Item The handleAddTodo function is responsible for adding a new todo item to the list. It checks if the input is empty and, if not, adds a new todo with a unique ID generated using Date.now().toString().  3. Deleting a Todo Item To remove a todo item , we use the handleDeleteTodo function. It filters out the todo with the specified ID from the list, effectively deleting it.  4. Editing a Todo Item The handleEditTodo function enables editing of a todo item. It sets the editedTodo state and populates the input field with the selected todo item's title.  5. Updating a Todo Item When you're done editing, the handleUpda...

Filter Method In Javascript for Beginners.

Hey There Awesome Developers !!! In this blogpost we will learn about a higher order function in javascript called - filter method. Lets first understand, what it does and how it is helpful.  Then we will see two basic examples. What is Javascript filter method? JavaScript's filter() method is a powerful tool that allows you to create a new array containing elements from an existing array that meet specific criteria or a certain condition. It's commonly used for filtering data based on conditions, making it a valuable asset in various programming tasks. let's see a basic example   : function getNumbersLargerThanFive ( numbers ) { let newNumbers = numbers . filter ( function ( number ) { return number > 5 ; }); return newNumbers ; } console . log ( getNumbersLargerThanFive ([ 88 , 2 , 4 , 5 , 8 , 99 , 66 , 56 , 21 , 39 , 213 ]) ); Lets understand this example. Here we have an array numbers that has several numbers in it. we want to filter out n...

Build a Food Recipe App UI in React Native | Expo

 Hey there awesome developers. In this blog post you will learn to build a beautiful ui from scratch. link for the source code :  Food Recipe App Source Code