[英]I want to remove item from local storage key with the function
function remove(current) {
let text = "Are You Sure ?";
if (confirm(text) == true) {
current.parentElement.parentElement.remove();
// document.getElementById("tablebody1").deleteRow(element.parentNode.rowIndex);
text33 = JSON.parse(localStorage.getItem("storex"))
function rem(arr, index) {
return arr.filter(function(ele) {
return ele != index
})
}
localStorage.setItem('text32', JSON.stringify(result));
localStorage.getItem("text32")
}
}
我正在尝试从本地存储中删除项目我在屏幕上呈现表数据,但我的表数据正在进入本地存储我想删除特定项目,例如:
如果我有这样的本地存储
0: {namex: "ANUJ", lnamex: "ANUJ", emailx: "anuj123@gmail.com"}
1: {namex: "ANUJ", lnamex: "ANUJ", emailx: "anuj123@gmail.com"}
2: {namex: "ANUJ", lnamex: "ANUJ", emailx: "anuj123@gmail.com"}
3: {namex: "ANUJ", lnamex: "ANUJ", emailx: "anuj123@gmail.com"}
4: {namex: "ANUJ", lnamex: "ANUJ", emailx: "anuj123@gmail.com"}
5: {namex: "ANUJ", lnamex: "ANUJ", emailx: "anuj123@gmail.com"}
6: {namex: "rohit", lnamex: "ANUJ", emailx: "anuj123@gmail.com"}
假设我要删除 6 个项目。 我该怎么做,或者如果我在刷新页面时将其删除,它会再次出现
您可以使用此方法删除localstorage
项目:
//setting item localStorage.setItem('image', 'myCat.png'); //removing item localStorage.removeItem('image');
function example(){
let array = [
{namex: "1", lnamex: "ANUJ", emailx: "anuj123@gmail.com"},
{namex: "2", lnamex: "ANUJ", emailx: "anuj123@gmail.com"},
{namex: "3", lnamex: "ANUJ", emailx: "anuj123@gmail.com"},
{namex: "4", lnamex: "ANUJ", emailx: "anuj123@gmail.com"},
{namex: "5", lnamex: "ANUJ", emailx: "anuj123@gmail.com"},
{namex: "6", lnamex: "ANUJ", emailx: "anuj123@gmail.com"}
];
localStorage.setItem('text32', JSON.stringify(array));
let getDataFromLocalStorage = JSON.parse(localStorage.getItem("text32")); //convert your saved string array to object
let result = getDataFromLocalStorage.filter((x, idx) => idx != 1);
document.getElementById('ex').innerHTML = JSON.stringify(result)
}
您必须将数组保存为本地存储中的字符串,因此您必须将其取回并将其转换为 Object 并使用filter()方法。 根据上面的例子,它将给出除第一个索引对象之外的所有数据
如果要删除第 6 个,则必须将索引号发送为 5,因为数组对象从第 0 个索引开始
然后如果需要,将其作为字符串保存回本地存储
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