从字符串阵列中查找和删除一个特定的字符串:

var colors = ["red","blue","car","green"];
var carIndex = colors.indexOf("car"); // Get "car" index
// Remove car from the colors array
colors.splice(carIndex, 1); // colors = ["red", "blue", "green"]

资料来源:https://www.codegrepper.com/?search_term=remove+a+particular+element+from+array

Vanilla JavaScript(ES5.1) - (ES5.1) -已经到位版本版本

浏览器支持 :因特网探索者 9或以后(或以后(详细浏览器支持)

/**
 * Removes all occurences of the item from the array.
 *
 * Modifies the array “in place”, i.e. the array passed as an argument
 * is modified as opposed to creating a new array. Also returns the modified
 * array for your convenience.
 */
function removeInPlace(array, item) {
    var foundIndex, fromIndex;

    // Look for the item (the item can have multiple indices)
    fromIndex = array.length - 1;
    foundIndex = array.lastIndexOf(item, fromIndex);

    while (foundIndex !== -1) {
        // Remove the item (in place)
        array.splice(foundIndex, 1);

        // Bookkeeping
        fromIndex = foundIndex - 1;
        foundIndex = array.lastIndexOf(item, fromIndex);
    }

    // Return the modified array
    return array;
}

Vanilla JavaScript(ES5.1) - (ES5.1) -不可变版本版本

浏览器支持: 与原版的香草 JavaScript 相同

/**
 * Removes all occurences of the item from the array.
 *
 * Returns a new array with all the items of the original array except
 * the specified item.
 */
function remove(array, item) {
    var arrayCopy;

    arrayCopy = array.slice();

    return removeInPlace(arrayCopy, item);
}

香草ES6 -不可变版本版本

浏览器支持: Chrome 46, 边缘 12, Firefox 16, Opera 37, Safari 8 ()详细浏览器支持)

/**
 * Removes all occurences of the item from the array.
 *
 * Returns a new array with all the items of the original array except
 * the specified item.
 */
function remove(array, item) {
    // Copy the array
    array = [...array];

    // Look for the item (the item can have multiple indices)
    let fromIndex = array.length - 1;
    let foundIndex = array.lastIndexOf(item, fromIndex);

    while (foundIndex !== -1) {
        // Remove the item by generating a new array without it
        array = [
            ...array.slice(0, foundIndex),
            ...array.slice(foundIndex + 1),
        ];

        // Bookkeeping
        fromIndex = foundIndex - 1;
        foundIndex = array.lastIndexOf(item, fromIndex)
    }

    // Return the new array
    return array;
}

此函数从特定位置的数组中删除元素。

array.remove(position);

Array.prototype.remove = function (pos) {
    this.splice(pos, 1);
}

var arr = ["a", "b", "c", "d", "e"];
arr.remove(2); // remove "c"
console.log(arr);

如果您不知道要删除的项目的位置, 请使用这个 :

array.erase(element);

Array.prototype.erase = function(el) {
    let p = this.indexOf(el); // indexOf use strict equality (===)
    if(p != -1) {
        this.splice(p, 1);
    }
}

var arr = ["a", "b", "c", "d", "e"];
arr.erase("c");
console.log(arr);

如果数组含有重复的值,而您想要删除目标的所有发生点, 那么这就是前进的道路...

let data = [2, 5, 9, 2, 8, 5, 9, 5];
let target = 5;
data = data.filter(da => da !== target);

注: - 过滤器不会改变原始数组;相反它会创建一个新的数组。

所以再次分配很重要。

这又引出了另一个问题,你无法制造变数const应该是:let或var.

您可以用所有存取器示例创建索引 :

<div >
</div>

function getIndex($id){
  return (
    this.removeIndex($id)
    alert("This element was removed")
  )
}


function removeIndex(){
   const index = $id;
   this.accesor.id.splice(index.id) // You can use splice for slice index on
                                    // accessor id and return with message
}

<div>
    <fromList>
        <ul>
            {...this.array.map( accesors => {
                <li type="hidden"></li>
                <li>{...accesors}</li>
            })

            }
        </ul>
    </fromList>

    <form id="form" method="post">
        <input  id="{this.accesors.id}">
        <input type="submit" callbackforApplySend...getIndex({this.accesors.id}) name="sendendform" value="removeIndex" >
    </form>
</div>

最基本的解决办法是:

array.key = null;