如何将字母顺序添加到我的待办事项列表中. [英] How to add alphabetic order to my to do list.

问题描述

你好
我有一个待办事项清单.
它具有任务和优先级下拉菜单的输入.

任务应按优先级按排序顺序列出(从紧急到
如果可以的话")，那已经完成了.
而且按照字典顺序在每个优先级组中-这是我的问题.


我在

hello
I have a to do list.
it have input for the task and priority dropdown.

Tasks should be listed in a sort order according to priority ( from urgent down to
"If You Can" ), that''s already done.
And within each priority group according to lexicographical order - that''s my problem.


my code on

jsbin

上的代码

var add = document.getElementById("addButton");
    var task = document.getElementById("Input");
    var list = document.getElementById("list");
    var body = document.querySelector("body");
    var form = document.querySelector("#form");

//Add task, css and UI
    add.addEventListener("click",function () {
       
       if (task.value.length >= 6 &&
            task.value.length <= 42) {

            //Add task to the list
            var newTask = document.createElement("li");
            var x = document.getElementById("prioritySelect").selectedIndex;
            newTask.dataset.priority = document.getElementsByTagName("option")[x].value;
            var all = document.querySelectorAll("li");
            var index = all.length;

            for (var i = 0; i < all.length; i++) {
                if (parseInt(newTask.dataset.priority) < parseInt(all[i].dataset.priority)) {
                    index = i;
                    break;
                }
            }

            list.insertBefore(newTask, all[index]);
            var taskName = document.createElement("h3");
            newTask.appendChild(taskName);
            taskName.innerHTML = task.value;
            var priorSpan = document.createElement("span");
            taskName.appendChild(priorSpan);
            priorSpan.innerHTML = newTask.dataset.priority;
}

我尝试过的事情:

我不知道该怎么办.
我试图遍历优先级循环.
我试了又试，但解决不了.

What I have tried:

I don''t know what to do.
I tried to iterate through the priority loop.
I tried and tried and I can''t solve it.

推荐答案

您的以下代码将始终将新任务插入优先级组的最后一项:

This code of your will always insert the new task to the last item in the priority group:

for (var i = 0; i < all.length; i++) {
    if (parseInt(newTask.dataset.priority) < parseInt(all[i].dataset.priority)) {
        index = i;
        break;
    }
}

因此要在优先级组中找到其字典顺序，请添加一个循环以使之向后循环，如下所示:

So to find its lexicographical order in the priority group, add a loop to loop backwards like this:

for (var j = index - 1; j >= 0; j--) {
    if (parseInt(newTask.dataset.priority) == parseInt(all[j].dataset.priority)) {
        if(task.value.localeCompare(all[j].innerText)==-1) index = j;
    }
}

我认为您应该使用排序数组方法..
像给数组vars一个键名...像a，b，c，d等等...然后在它们的values/上方提到它们.喜欢

i think you should use sort array method..
like give your array vars a key name... like a , b, c , d and so... then mention them just above their values/. like

var arr = [{
    key: "a",
    value: urgent
},
{
    key: "d",
    value: not so urgent
},
{
    key: "c",
    value: just imp
},
{
    key: "b",
    value: take your time
}];

现在以您想要的任何方式安排它们...

now arrange them in whatever way you want...

var order = ["c", "a", "b", "d"];
var sorted = _.sortBy(arr, function(obj){ 
    return _.indexOf(order, obj.key);
});

编写有趣的代码...

have fun coding...

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