1

嗯,我试图将“textBox”中的消息保存回localStorage并将其添加到“logContent”,但是当我刷新页面时,“logContent”仍然是空的,只有原始内容存在。

<body>

<div class="modal-body"> 
    <input id="textBox" type="text" placeholder="Type Message" onkeydown="if (event.keyCode == 13) {enterPressed();}">
    <p id="logContent">
            -- Logging is created --
    </p>
</div>

</body>

这是我的 Javascript,所以我想用 textBox.value + logContent 中的原始内容替换“logContent”中的原始内容,并且即使刷新页面也始终显示所有内容。谢谢你。

var today = new Date(); 
var dd = today.getDate();
var mm = today.getMonth()+1; //January is 0
var yyyy = today.getFullYear();

if (dd < 10) {
dd ='0'+ dd
} 

if (mm < 10) {
mm ='0'+ mm
} 

today = dd + '/' + mm + '/' + yyyy;

function enterPressed() {
localStorage.setItem("logs", document.getElementById("textBox").value);
if (textBox.value == "") {

}
else {
var logText = today + ":" + " " + localStorage.getItem("logs") + '<br>';
$("#logContent").prepend(logText); // Prepend textBox's content to the top of  "logContent".
textBox.value = ""; // To clear the textBox after enter is pressed.
}
}
4

1 回答 1

0

原始脚本没有提供从 加载日志的方法localStorage,并将新输入存储在“logs”键下,而意图是预先添加。解决方案非常简单:在页面加载时从 localStorage 加载,并用页面上显示localStorage['logs']的内容覆盖logContents

....

window.onload = function(){
    existing_log = localStorage.getItem("logs");
    console.log(existing_log);
    if (existing_log){document.getElementById("logContent").innerHTML = existing_log;}
}

function enterPressed() {
    if (textBox.value == "") {
        return;
    }
    else {
        var logText = today + ":" + " " + document.getElementById("textBox").value + '<br>\n';
        $("#logContent").prepend(logText); // Prepend textBox's content to the top of  "logContent".
        textBox.value = ""; // To clear the textBox after enter is pressed.
        localStorage.setItem("logs", document.getElementById("logContent").innerHTML);
    }
}
于 2013-08-03T01:21:41.447 回答