我需要完成同样的任务，并遇到了这个线程。我最终使用数组“join”使用“_”分隔符创建字符串，然后使用正则表达式：-

1. replace "__" or more with just one "_",
2. replace preceding "_" with nothing "" and similarly 
3. replace and ending "_" with nothing ""

…然后使用数组“拆分”生成一个已清理的数组：-

var myArr = new Array("","","a","b","","c","","","","","","","","","e","");
var myStr = "";

myStr = myArr.join("_");

myStr = myStr.replace(new RegExp(/__*/g),"_");
myStr = myStr.replace(new RegExp(/^_/i),"");
myStr = myStr.replace(new RegExp(/_$/i),"");
myArr = myStr.split("_");

alert("myArr=" + myArr.join(","));

…或1行代码：-

var myArr = new Array("","","a","b","","c","","","","","","","","","e","");

myArr = myArr.join("_").replace(new RegExp(/__*/g),"_").replace(new RegExp(/^_/i),"").replace(new RegExp(/_$/i),"").split("_");

alert("myArr=" + myArr.join(","));

…或，扩展Array对象：-

Array.prototype.clean = function() {
  return this.join("_").replace(new RegExp(/__*/g),"_").replace(new RegExp(/^_/i),"").replace(new RegExp(/_$/i),"").split("_");
};

var myArr = new Array("","","a","b","","c","","","","","","","","","e","");

alert("myArr=" + myArr.clean().join(","));

这是可行的，我在AppJet中测试了它（你可以复制粘贴代码到它的IDE上，然后按“reload”查看它的工作情况，不需要创建帐户）

/* appjet:version 0.1 */
function Joes_remove(someArray) {
    var newArray = [];
    var element;
    for( element in someArray){
        if(someArray[element]!=undefined ) {
            newArray.push(someArray[element]);
        }
    }
    return newArray;
}

var myArray2 = [1,2,,3,,3,,,0,,,4,,4,,5,,6,,,,];

print("Original array:", myArray2);
print("Clenased array:", Joes_remove(myArray2) );
/*
Returns: [1,2,3,3,0,4,4,5,6]
*/

下面是一个使用变量行为和ES2015胖箭头表达式的示例：

Array.prototype.clean = function() {
  var args = [].slice.call(arguments);
  return this.filter(item => args.indexOf(item) === -1);
};

// Usage
var arr = ["", undefined, 3, "yes", undefined, undefined, ""];
arr.clean(undefined); // ["", 3, "yes", ""];
arr.clean(undefined, ""); // [3, "yes"];

var data = [null, 1,2,3];
var r = data.filter(function(i){ return i != null; })

console.log(r) 

[1,2,3]

这只会删除空值，而不是虚假值，我认为这是更可取的。

也可以选择删除空值。

这种方法应该比使用拼接快得多。

    function cleanArray(a, removeNull) {
        var i, l, temp = [];
        l = a.length;
        if (removeNull) {
            for (i = 0; i < l; i++) {
                if (a[i] !== undefined && a[i] !== null) {
                    temp.push(a[i]);
                }
            }
        } else {
            for (i = 0; i < l; i++) {
                if (a[i] !== undefined) {
                    temp.push(a[i]);
                }
            }
        }
        a.length = 0;
        l = temp.length;
        for (i = 0; i < l; i++) {
            a[i] = temp[i];
        }
        temp.length = 0;
        return a;
    }
    var myArray = [1, 2, , 3, , 3, , , 0, , null, false, , NaN, '', 4, , 4, , 5, , 6, , , , ];
    cleanArray(myArray);
    myArray;

“误用”。。。在（对象成员）循环中。=>循环体中仅显示真实值。

// --- Example ----------
var field = [];

field[0] = 'One';
field[1] = 1;
field[3] = true;
field[5] = 43.68;
field[7] = 'theLastElement';
// --- Example ----------

var originalLength;

// Store the length of the array.
originalLength = field.length;

for (var i in field) {
  // Attach the truthy values upon the end of the array. 
  field.push(field[i]);
}

// Delete the original range within the array so that
// only the new elements are preserved.
field.splice(0, originalLength);