将三个数组实例推送到另一个数组 - javaScript

Question

我正在研究JavaScript功能，我正在努力工作。

我有2个数组。

数组1保持单个记录，数组2保持说例3记录。我想在array1记录的相同索引处推送数组1中的数组2的三个记录...

这就是我想要实现的目标，以便稍后我可以转换为JSON

       QualificationElemenetsAndComponents[0] = {

         Element [
                 ElementIndex : "",
                 ElementMarkingSchemeTitle : "",
                 ElementAvailableMark: "",
                 ElementPassMark: "",
                 ElementDistinctionMark: "",
                 Component[0]= [ 
                               componentIndex="", 
                               componentMark =""
                               ], 
                 Component[1]= [ 
                               componentIndex="", 
                               componentMark =""
                               ], 
                 Component[2]= [ 
                               componentIndex="", 
                               componentMark =""
                               ], 
                    }

示例代码

<script type="text/javascript">

var selectedComponentList = [];

var selectElementList = [];

var QualificationElemenetsAndComponentsList = [];


selectElementList = { 
                 ElementIndex: 1,
                 ElementMarkingSchemeTitle: “markingScheme1”,
                 ElementAvailableMark: 100,
                 ElementPassMark: 50,
                 ElementMeritMark: 60,
                 ElementDistinctionMark: 70
 };

 selectedComponentList = {
                componentIndex: 1,
                componentMark: 80
 };

 selectedComponentList = {
               componentIndex: 23,
               componentMark: 50
 };

 selectedComponentList = {
               componentIndex: 3,
               componentMark: 10
 };


 $(document).ready(function () {


 }); //end JQuery

</script>

Answer 1

实际上，您必须使用Array.prototype.splice方法。

z = [1,2,3];
z.splice(1,0,6,7,8,9);
console.log(z); // [1, 6, 7, 8, 9, 2, 3] 

Answer 2

尝试以下

var QualificationElemenetsAndComponentsList = [];

var selectElementList = {//this is a javascript object
    ElementIndex: 1,
    ElementMarkingSchemeTitle: "markingScheme1",
    ElementAvailableMark: 100,
    ElementPassMark: 50,
    ElementMeritMark: 60,
    ElementDistinctionMark: 70
};
selectedComponentList = [];

selectedComponentList[selectedComponentList.length] = {
    componentIndex: 1,
    componentMark: 80
};

selectedComponentList[selectedComponentList.length] = {
    componentIndex: 23,
    componentMark: 50
};

selectedComponentList[selectedComponentList.length] = {
    componentIndex: 3,
    componentMark: 10
};

selectElementList.Component = selectedComponentList; //Here's how you assign the array to the object property

QualificationElemenetsAndComponentsList[QualificationElemenetsAndComponentsList.length] = selectElementList;

Answer 3

我已成功解决，请告诉我是否正确......

构建selectElementList

  selectElementList.push({ ElementIndex: E_RecordId, ElementMarkingSchemeTitle: E_MarkingSchemeTitle, ElementAvailableMark: E_AvailableMark, ElementPassMark: E_PassMark, ElementMeritMark: E_MeritMark, ElementDistinctionMark: E_DistinctionMark });

构建selectedComponentList

   selectedComponentList.push({ componentIndex: recordId, componentMark: ComponentSchemeMark });

将组件（数组2）绑定到元素（array1）

selectElementList.push({ Components: selectedComponentList });

将array1元素保存到最终数组

QualificationElemenetsAndComponentsList.push({ Element: selectElementList });

清空array1和array2

selectElementList = [];
selectedComponentList = [];

并按照每个元素重复循环

以下代码生成JSON输出

 var myElementList = "";

 myElementList = JSON.stringify({ QualificationElemenetsAndComponentsList: QualificationElemenetsAndComponentsList });

 document.write("JSPN >>>>   " + myElementList);

JSON输出

JSPN >>>> {"QualificationElemenetsAndComponentsList":[{"Element":[{"ElementIndex":1,"ElementMarkingSchemeTitle":"m1","ElementAvailableMark":"10","ElementPassMark":"55","ElementMeritMark":"44","ElementDistinctionMark":"4"},{"Components":[{"componentIndex":1,"componentMark":"2"},{"componentIndex":2,"componentMark":"23"},{"componentIndex":3,"componentMark":"55"}]}]},{"Element":[{"ElementIndex":3,"ElementMarkingSchemeTitle":"m2","ElementAvailableMark":"45","ElementPassMark":"545","ElementMeritMark":"444","ElementDistinctionMark":"4"},{"Components":[{"componentIndex":2,"componentMark":"45"},{"componentIndex":4,"componentMark":"52"}]}]},{"Element":[{"ElementIndex":8,"ElementMarkingSchemeTitle":"m3","ElementAvailableMark":"100","ElementPassMark":"224","ElementMeritMark":"455","ElementDistinctionMark":"54"},{"Components":[{"componentIndex":2,"componentMark":"4"},{"componentIndex":1,"componentMark":"69"}]}]}]}