需要一个本地存储值来增加按钮按下

Question

我需要将一个值保存到 localstorage 中，该值已经在 localstorage 中并且只增加 1

保存：

function checkklaar2() {
    a = document.getElementById("eindgetal2").value;
    if (a == "0") {
        window.location.href = 'winnaar2.html';
        var gewonnen2 = localStorage.getItem("setsgewonnen2");
        localStorage.setItem("setsgewonnen2.2", gewonnen2.value + "1");
    } else {}
}

查看：

// Check browser support
if (typeof(Storage) != "undefined") {
    // Store
    // Retrieve
    document.getElementById("result1.1").innerHTML = localStorage.getItem("naamspeler1.1");
    document.getElementById("result2.1").innerHTML = localStorage.getItem("naamspeler2.1");
    document.getElementById("result1.2").value = localStorage.getItem("setsgewonnen1.2");
    document.getElementById("result2.2").value = localStorage.getItem("setsgewonnen2.2");
    document.getElementById("sets").value = localStorage.getItem("setstespelen");
    document.getElementById("sets2").value = localStorage.getItem("setstespelen");
} else {
    document.getElementById("result").innerHTML = "Sorry, your browser does not support Web Storage...";
}

接收输入，因为它没有显示第 2 页输入中的值：

HTML:

<h1 style="margin-left:15px;">Speler<div id="result1.1"></div> </h1>
<div class="list-block">
    <ul>
        <div class="list-block">
            <ul>

                <li>
                    <div class="item-content">
                        <div class="item-title label">Sets gewonnen</div>
                        <div class="item-input">
                            <input type="number" id="result1.2">
                        </div>
                    </div>
                </li>


            </ul>
            <ul>

                <li>
                    <div class="item-content">
                        <div class="item-title label">Sets totaal</div>
                        <div class="item-input">
                            <input type="number" id="sets">
                        </div>
                    </div>
                </li>


            </ul>
        </div>
    </ul>
</div>
<h1 style="margin-left:15px;">Speler <div id="result2.1"></div></h1>
<div class="list-block">
    <ul>
        <div class="list-block">
            <ul>

                <li>
                    <div class="item-content">
                        <div class="item-title label">Sets gewonnen</div>
                        <div class="item-input">
                            <input type="number" id="result2.2">
                        </div>
                    </div>
                </li>


            </ul>
            <ul>

                <li>
                    <div class="item-content">
                        <div class="item-title label">Sets totaal</div>
                        <div class="item-input">
                            <input type="number" id="sets2">
                        </div>
                    </div>
                </li>

提前致谢！

Answer 1

我想你正在搜索这样的东西：

localStorage.setItem("setsgewonnen2.2", parseInt(gewonnen2.value) + 1);

通常本地存储将所有内容存储为字符串

需要一个本地存储值来增加按钮按下

Need a local storage value to increase on button press

javascript

calculator

count

local-storage