create a todolist in javascript

To create a todo list in JavaScript, you can follow these steps:

  1. Create a HTML file with the necessary structure for the todo list. Here is an example:
<!DOCTYPE html>
<html>
  <head>
    <title>Todo List</title>
  </head>
  <body>
    <h1>Todo List</h1>
    <input type="text" id="newTodo" placeholder="Enter a new todo" />
    <button onclick="addTodo()">Add</button>
    <ul id="todoList"></ul>

    <script src="app.js"></script>
  </body>
</html>

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  1. Create a JavaScript file (e.g., app.js) and link it to the HTML file.

  2. In the JavaScript file, define an array to store the todo items:

index.tsx
let todos = [];

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  1. Create a function to add a new todo item:
index.tsx
function addTodo() {
  const newTodoInput = document.getElementById("newTodo");
  const newTodo = newTodoInput.value;
  if (newTodo !== "") {
    todos.push(newTodo);
    newTodoInput.value = "";
    renderTodos();
  }
}

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  1. Create a function to render the todo items and update the HTML:
index.tsx
function renderTodos() {
  const todoList = document.getElementById("todoList");
  todoList.innerHTML = "";
  for (let i = 0; i < todos.length; i++) {
    const todo = document.createElement("li");
    todo.textContent = todos[i];
    todoList.appendChild(todo);
  }
}

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  1. Call the renderTodos function initially to display any existing todos:
index.tsx
renderTodos();

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  1. Save the files and open the HTML file in a web browser. You should now have a functioning todo list where you can enter new todos and see them displayed on the page.

Note: This is a basic implementation, and you can enhance it further by adding additional functionality, such as marking todos as completed, deleting todos, or persisting the data using local storage or a database.

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related categories

javascript
todolist

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