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Accepted
Arthur Alunts
Asked:2020-02-25 04:07:26 +0000 UTC2020-02-25 04:07:26 +0000 UTC

如何正确连接 textArea 和 localStorge？

  • 772

需要创建一个简单的 html 待办事项列表，以便它可以编辑事件。事件将存储在本地存储中。到目前为止，我有以下内容。无法保存问题 (saving0)。一般来说，能找到现成的解决方案就好了，但是我还没有找到。万事俱备！！！

<textarea rows="5" cols="30" id="T1"></textarea>
<input type="button" value="save" onclick=saving0()/><input>

<script>
  var Key1 = "Areg";
  var Key2 = 1234567;
  var Key3 = "Arthur";
  //localStorage["1"] = Key1;
  //localStorage["2"] = Key2;
  //localStorage["3"] = Key3;
  var U = localStorage["1"];

  function saving0() {

    localStorage["1"] = (getText0());

  }

  function getText0() {
    str1 = document.getElementById('T1');
    return (str1.value + "");
  }

  function setText0(value) {
    document.getElementById('T1').value = value;
  }
</script>
<script>
  setText0(localstorage["1"]);
  //setText0(getText0());
</script>

javascript

2 个回答

  1. Best Answer

    <textarea rows="5" cols="30" id="T1"></textarea>
<input type="button" value="save" onclick="saving0()" />

<!DOCTYPE html>
<meta charset="utf-8">
<svg width="960" height="600"></svg>
<script src="d3.js"></script>
<script>
//После первого запуска можно отключить (закоментировать) 2,3,4 строки кода, чтобы удостовериться, что все сохраняется в локальном хранилище
localStorage["Key1"]="Value1";
//localStorage["Key2"]="Value2";
localStorage["Key3"]="Value3";
var U = localStorage["Key2"];
function saving0() {
  localStorage["Key2"] = (getText0());
}
function getText0() {
  str1 = document.getElementById('T1');
  return (str1.value + "");
}
function setText0(value) {
  document.getElementById('T1').value = value;
}
setText0(U)
</script>

</style>
</html>

    • 2 

  2. var U = localStorage["1"];

function saving0() {
  localStorage["1"] = (getText0());
}

function getText0() {
  str1 = document.getElementById('T1');
  return (str1.value + "");
}

function setText0(value) {
  document.getElementById('T1').value = value;
}

setText0(U);
    <textarea rows="5" cols="30" id="T1"></textarea>
<input type="button" value="save" onclick="saving0()" />

    • 1

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