ReactJS Course – CRUD in React | TodoList Tutorial
Introduction
ReactJS is a popular JavaScript library used for building user interfaces. In this ReactJS course, we will focus on implementing CRUD (Create, Read, Update, Delete) functionality in React, specifically through building a TodoList application.
Getting Started
Before diving into CRUD operations, ensure you have a basic understanding of HTML, CSS, and JavaScript. Familiarity with React concepts like components, state, and props is also beneficial.
To follow along with this tutorial, make sure you have ReactJS installed on your system. You can install ReactJS by using a package manager like npm or yarn. Run the following command in your terminal or command prompt:
$ npm install react or $ yarn add react
CRUD Operations in React
CRUD operations refer to the basic actions performed on data in a database or an application. In this tutorial, we will implement these operations in a TodoList application.
Create Operation
The first step is to design and create the user interface for adding a new Todo item. We will use React components to create the form where users can input their task. On form submission, we will handle the data and add the new task to the list.
Read Operation
After adding tasks, we need to display them in a list format. We will create a React component to render the task list. By iterating over the list of tasks, we can display them dynamically on the page. Additionally, we can implement features like filtering or sorting the tasks based on different criteria.
Update Operation
Users should be able to edit the existing tasks when needed. We will create an edit button for each task that opens a form where users can modify the task details. On form submission, we will update the task accordingly.
Delete Operation
To remove a task from the list, users will have the option to delete it. We will implement a delete button next to each task, and on click, the task will be removed from the list.
Conclusion
In conclusion, this ReactJS course focuses on implementing CRUD functionality in a TodoList application. By following the steps and building each operation, you will gain a deeper understanding of React’s core concepts and effectively manage data in your applications.
Remember to practice regularly and experiment with different features to enhance your skills and creativity as a React developer. Happy coding!
Concerning the id part u can also try this
const task ={
id: todoList.length+1,
taskName: newTask
}
setTodoList([…todoList, task])
}
pedro, you made it simple !!
thanks Pedro, may God bless you for the time and effort you have put in. I am guessing we can also use the ternary operator in the complete task function, as you love using it 🙂
where is the CRUD stuff bro! this is only about delete things😢
good video man had to watch a couple times but i understand roughly 90%
What will be the way if we are not passing the delete function as props?
your examples are very good for clearing concepts
function App(){
const [todoList, setTodolist] = useState([]);
const [newTask, setnewTask] = useState("");
const handleChange = (event) =>{
setnewTask(event.target.value);
};
const addTask= () =>{
const newTodoList = […todoList, newTask];
setTodolist(newTodoList);
};
return (
<div className="App">
<div className="addTask">
<input onChange={handleChange}/>
<button onClick={addTask}>Add task</button>
</div>
<div className="list">
{todoList.map((task) => {
return <h1>{task}</h1>
})}</div>
</div>
);
}
I didnt understood the ID and the completed task part can anyone help me with that
bro really you are a gem god bless you
Thanks man for this tutorial
Why do you use const to functions?
Bro help everything is going over my head you are fast
this is the hardest episode yet 0_0 had to go 0.5x speed 0_0
Awesome Explanation Pedro
29:44 To fix this error shown in your console: `Each child in a list should have a unique "key" prop.` Make sure you add these changes to the code: <div className="list">
{todoList.map((task) => (
<div className="tasks" key={task.id}>
<li>
{task.taskName}
<button onClick={() => removeTask(task.id)}>X</button>
</li>
</div>
))}
</div>
Set the key prop to {task.id} to give a unique id to each child. Hope this solves your problem.
kinda bit overwhelming lol but yea quite helpful♥
Nice tutorial and exercise 👍
for deleting a task, you can simply do something like this const handleDelete = (index) => {
const updatedTasks = […tasks];
updatedTasks.splice(index, 1);
setTasks(updatedTasks);
};
where index is the index of each element in the array that you grab from the map function
Thanks Pedro !!!!!.
i dont know about other youtubers but your react course is the best….