Please help me to fix this Code to Show Next task is enabled even after it shows the last task.

To Do List

Add task: Task list: Next task:

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var taskList = ['']; function alert_task(){ data = document.getElementById("new_task").value;

if(data == ""){ alert("No task is provided"); }else{

taskList.push(data);

document.getElementById("new_task").value ="";

document.getElementById("show_next_task").disabled = false; } for(i=0;i

var tasks = taskList[i] + " " + document.getElementById("task_list").value; }

document.getElementById("task_list").innerHTML = tasks; } function show_data(){ if(taskList.length > 1){

document.getElementById("next_task").value = taskList[taskList.length-1];

taskList.pop(); document.getElementById("task_list").innerHTML = ''; for(i=0;i

document.getElementById("show_next_task").disabled = true; } }

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To Do List Add Task Add task: Task list: Next task: aaaa Show Next Task