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Asked:2020-10-15 23:06:42 +0000 UTC2020-10-15 23:06:42 +0000 UTC

如何通过键值java脚本从数组中删除对象[重复]

  • 772

我需要从带有对象的数组中删除吗？单击按钮时按键值的对象。

  var tasks = [ {id_task: "74", for_user_id: "160", time: null, date: "2018-9-13", task_name: "Решить вопрос с удалением задачи из массива при удалении"}, {id_task: "77", for_user_id: "160", time: null, date: "2018-9-10", task_name: "sss"}];

    button.onclick = function(){
        let del = this.parentNode.getAttribute('taskid');

            for(let i = 0; i <= tasks.length; i++){
                if(tasks[i].id_task == del){
                    delete tasks[i];    
                }
            }
    }

我得到 Uncaught TypeError: Cannot read property 'id_task' of undefined at HTMLSpanElement.deleteTask (todo_list_block.js:53)

javascript

1 个回答

  1. Best Answer
            for (let i = tasks.length - 1; i >= 0; i--) {
            if (tasks[i].id_task == del) {
                tasks.splice(i, 1);    
                break; // ?
            }
        }
    • 1

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