😏findIndex, find index in Array object (ok)

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
  </head>
  <body>
    <script>
    const findIndex = (id) =>  {
          var result = -1;
          var tasks = [
        {
          id: 1,
          name: "Name 1",
          status: true
        },
        {
          id: 2,
          name: "Name 2",
          status: false
        },
        {
          id: 3,
          name: "Name 3",
          status: true
        }
      ];
      tasks.forEach((task,index) => {
        if(task.id === id) {
          result = index;
        }
      });
      return result;
    };
    var index = findIndex(2);
    console.log(index); // 1
  </script>
  </body>
</html>

Tham khảo

findIndex = (id) =>  {
    var result = -1;
    var {tasks} = this.state;
    tasks.forEach((task,index) => {
        if(task.id === id) {
            result = index;
        }
    });
    return result;
};
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