JS-强制函数在其他函数之后运行

试试这个（未经测试）。在API1完成之前，它不会调用API2：

// Version 1
    getEmptyArticles();
function getEmptyArticles() {
    articleArray = [];
    var empytyBaseURL = "scripts/get-empty-rows.php";
            $.ajax({
                url: empytyBaseURL,
                dataType: 'json',
                timeout: 7000
            }).done(function(json){
                token = json;
                    for( var i = 0; i < token.length; i++) {
                    articleArray.push(token[i]);
                    }
                API1(articleArray);
            }).fail(function(){
                alert("ERROR: Could Not Get Empty Articles");
            }).always(function() {
                //setTimeout(getEmptyArticles, 200000);
                //articleArray.length = 0;
            });     
 }
function API1(articleIDs) {
    var BaseURL = "OMITTED";
    var IDs =  returnCIDs(articleIDs, ";");
    var APIKey = "OMITTED";
    var APIURL = BaseURL + IDs + "?api_key=" + APIKey;
        $.ajax({
            url: APIURL,
            dataType: 'json',
            timeout: 7000
        }).done(function(json){
            token = json;
            obj = token.result;
            API1Success(obj, articleIDs);
        }).fail(function(){
            API1Error();
        }); 
        function API1Success(obj, articleIDs) {
            var lastScan = "";
                for (var i = 0; i < obj.length; i++) {
                    if(obj[i].LabelNo) {
                        //ADD RESULTS TO TABLE HERE
                    } else if (obj[i].LabelNumber) {
                        var arrayIndex = articleArray.indexOf(obj[i].LabelNumber);
                            for (var x = 0; x < obj[i].Scans.length; x++) {
                                lastScan = obj[i].Scans[x].StatusDescription;   
                            }
                //POST DATA TO TABLE 1 DATABASE URL 
                        var id = obj[i].LabelNumber;
                        lastScan = lastScan.replace(/'/g, "");
                        var articles = "None Specified";
                        var Name = "OMITTED";
                        postTable1Data(id, lastScan, articles, Name);                   
                //POST DATA TO TABLE 2 DATABASE URL
                        for (var x = 0; x < obj[i].Scans.length; x++) {
                            var eventID = obj[i].LabelNumber;
                            var eventProdType = "";
                            var eventBadTime = moment(obj[i].Scans[x].Date, "DD/MM/YYYY HH:mm:ss");
                            var eventGoodTime = eventBadTime.format("YYYY-MM-DD HH:mm:ss");
                            var eventLocation = obj[i].Scans[x].Name;
                            var scan = obj[i].Scans[x].StatusDescription;
                            scan = scan.replace(/'/g, "");
                            postTable2Data(eventID, eventProdType, eventGoodTime, eventLocation, scan);
                        }
                //REMOVE GOOD URL FROM ARRAY
                    eraseFoundArticle(obj[i].LabelNumber);
                    }
                }
            API2(articleIDs);
        }
        function API1Error() {
            console.log("ERROR CONNECTING TO THE API");
        }   
}
function API2(articleIDs) {

    var tPHPURL = "omitted";
    var tIDs =  "num=" + returnCIDs(articleIDs, ",");
    $.ajax({
        type: "POST" ,
        url: tPHPURL ,
        data: tIDs
        }).done(function(json){
            obj = json;
            tSuccess(obj);
        }).fail(function(){
            tError();
        }); 
    function tSuccess(obj) {

        //ERROR LOGGING
        if (obj.errors.length > 1) {
            for (var i = 0; i < obj.errors.length; i++) {
                var errors = obj.errors[i];
                var strErrors = errors.split(" ");
                var id = strErrors[1];
                var c = "omitted";
                postErrorData(id, c)
            }
        }
        //SUCCESS LOGGING
        for (var i = 0; i < obj.tatConnotes.length; i++) {
            var id = obj.tatnotes[i].connote;
            var status = obj.tatConnotes[i].lastEventStatus;
            var articles = obj.tatConnotes[i].actualItems;
            var cName = obj.tatConnotes[i].tBusinessName;
            eraseFoundArticle(id);

            postTable1Data(id, status, articles, cName);
                for (var x = 0; x < obj.tatnotes[i].cEvents.length; x++) {
                    var cId = obj.tatnotes[i].cEvents[x].connote;
                    var cType = obj.tatnotes[i].cDescription;
                    var badDateTime = moment(obj.tatConnotes[i].cEvents[x].eventDateTime, "ddd D/MM/YYYY hh:mm A");
                    var cDateTime = badDateTime.format("YYYY-MM-DD HH:mm:ss");
                    var cLocation = obj.tatnotes[i].cEvents[x].location;
                    var cDescription = obj.tatnotes[i].consignmentEvents[x].eventDescription;
                    postTable2Data(cId, cType, cDateTime,cLocation ,cDescription);
                }
        }

    }
    function tError() {
        //ADD BACKUP FUNCTION HERE
    }
}
function postTable1Data(id, status, articles, couriername) {
            $.ajax({
                type: "POST",
                url: "scripts/update.php",
                data: //INSERT DATA HERE - OMITTED
                success: //INSERT DATA HERE - OMITTED
            });     
    }
function postTable2Data(id, type, datetime, location, description) {
            $.ajax({
                type: "POST",
                url: "scripts/update.php",
                data: //INSERT DATA HERE - OMITTED
                success: //INSERT DATA HERE - OMITTED
            }); 
    }
function postErrorData(id, courier) {
        //POST ERROR DATA - OMITTED
    }
function eraseFoundArticle(id) {
        var arrayIndex = articleArray.indexOf(id);
            articleArray.splice(arrayIndex,1);
    }

function returnCIDs(articleIDs, seperator) {
            var cArticleIDs = "";
            for (var i = 0; i < articleIDs.length; i++) {   
                var cArticleIDs = cArticleIDs + seperator + articleIDs[i] ;
            }
            return cArticleIDs;
}