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import React from 'react';

type Todo = {
  id: number;
  title: string;
  completed: boolean;
}

type Props = {
  todo: Todo;

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let todo: Todo | undefined;

for (let i = 0; i < todos.length; i++) {
  if (todos[i].id === 1) {
    todo = todos[i];
    break; // Remember to break so we don't keep iterating after we found it
  }
}

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const todo = todos.find((todo) => todo.id === 1);

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const completedAll = todos.every((todo) => todo.completed);

console.log(completedAll); // false

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let completedAll = true;

for (let i = 0; i < todos.length; i++) {
  if (!todos[i].completed) {
    completedAll = false;
    break;
  }
}