form表單轉Json提交方法

先將表單數值轉換成數組存儲，存儲成的格式為[{"name":"","value":""},.....}]

var formArray = $("#form").serializeArray();

將formArray轉換成Json格式

function arrayToJson(formArray){
    var dataArray = {};
    $.each(formArray,function(){
        if(dataArray[this.name]){
            if(!dataArray[this.name].push){
                dataArray[this.name] = [dataArray[this.name]];
            }
            dataArray[this.name].push(this.value || '');
        }else{
            dataArray[this.name] = this.value || '';
        }
    });
    return JSON.stringify(dataArray);
}