Question

这是一个代码示例：

var testFunction = function(x) {
    delete(x); //x = null
}
var array = ["test1", "test2", "test3"];
$.each(array, function(e, e1) {
  testFunction(e1);
}

我想在函数中删除数组中的元素。可以用索引（delete(array[1])）删除它，但我不能在我的情况下这样做，因为删除功能应该稍后在on-Button-Press功能中（每个数组一个按钮 - 元素）（不像示例中那样）并且索引是动态变化的。当前函数会删除/设置x变量null，它不会影响数组中的变量。

有没有办法删除变量后面的引用对象？也许用.getObject()或类似的东西？

编辑：完整的例子：

var createButton = function(object, placeThere) {
    var oButton1 = new sap.ui.commons.Button({
    text : ("Delete " + object.value),
    });
    //do some more not relevant stuff here

    oButton1.attachPress(function() {
        delete(object); /*deleteObjectOutOfArray*/
    }
    oButton1.placeAt(placeThere);  
}

var array = [new Object(), new Object(), new Object()]; //array filled with objects with diffrent variables like for example value
$each (array, function(e1, e2) {
    createButton(e2, "nameOfDiv");
}

Answer 1

// Declare array first, so following code can refer to it
var array = [new Object(), new Object(), new Object()];

var createButton = function(object, placeThere) {
    // then after not relevant stuff:
    oButton1.attachPress(function() {
        array.splice(array.indexOf(object), 1); // this removes object from array
    }
    // rest of code
}

删除函数内部参数后面的对象

1 个答案: