在繼續之前等待一個 function 完成的最佳方法是什么？

Question

when i try to create a new record from JS to CRM with the function XrmServiceToolkit.Soap.Create its take a lot of time to finish.. so the JS continuing to execute the other function, in the function RecalculateSurface i retreive the value of the由第一個 function 創建的記錄，所以我無法獲得記錄的值，因為它尚未保存。

function save()

{
//some code
delivery.attributes["eoz_unit"] = Unit;
delivery.attributes["description"] = quoteDetail.Description;
delivery.attributes["quoteid"] = { id: quoteId, logicalName: "quote", type: "EntityReference" };
 XrmServiceToolkit.Soap.Create(delivery);   //function 1
RecalculateSurface();
}
function RecalculateSurface()
{
// code to retreive the record created in function 1  

}

任何想法讓 function RecalculateSurface() 等待記錄的保存？ function XrmServiceToolkit.Soap.Create 返回創建的記錄的 id。

Answer 1

所以，創建 function 有一個可選的回調 function 參數...

XrmServiceToolkit.Soap.Create(businessEntity, [callback(result)]);

您應該使用該選項，而不僅僅是傳入實體

function save() {
    //some code
    delivery.attributes["eoz_unit"] = Unit;
    delivery.attributes["description"] = quoteDetail.Description;
    var quoteidObj = {
        id: quoteId,
        logicalName: "quote",
        type: "EntityReference" 
    };
    delivery.attributes["quoteid"] = quoteidObj;
    // do function 1
    XrmServiceToolkit.Soap.Create(delivery, function(result){  
        RecalculateSurface();
    });   
}

function RecalculateSurface() {
    // code to retrieve the record created in function 1  
}

這應該會導致 XrmServiceToolkit.Soap.Create 調用異步操作，並且僅在完成時調用 RecalculateSurface()。

如果您想擴展解決方案以使用 Promise，那么您可以執行以下操作：

function save() {
    //some code
    delivery.attributes["eoz_unit"] = Unit;
    delivery.attributes["description"] = quoteDetail.Description;
    var quoteidObj = {
        id: quoteId,
        logicalName: "quote",
        type: "EntityReference" 
    };
    delivery.attributes["quoteid"] = quoteidObj;
    callCreate(delivery).then(function(){
        RecalculateSurface()
    });
}

function callCreate(delivery){
    return new Promise(function(resolve,reject) {
        XrmServiceToolkit.Soap.Create(delivery, function(result){
            resolve();
        });
    });
}

function RecalculateSurface() {
    // code to retrieve the record created in function 1  
}