我希望创建一个从 4 个选择菜单的选定选项派生的 JSON 对象。这些菜单可能在加载时选择了选项（由于服务器端技术），或者可能没有选择任何选项！使用 $(document).ready() 加载页面后，我的脚本就会运行……但是我遇到了 JSON 对象“<strong>JSON.parse：JSON 数据后意外的非空白字符”的问题</p>
我希望我的 JSON 具有以下结构
selObj = {
category: selectedCategory, // we can only have 1 category, this isn’t giving me a problem…
catOptions:{
optionValue:discountValue, // we can have many of these
optionValue:discountValue,
optionValue:discountValue
},
tariff:{
tariffValue:discountValue, // we can have many of these
tariffValue:discountValue
},
tarOptions:{
tarOption:discountValue, // we can have many of these
}
};
好的，这是我的函数，为了简化，我在这里删除了一些项目，但是我将一个原始的空对象作为参数传递给函数，然后希望修改它，因为如果我想将 JSON 对象传递回服务器/when the select menus are changed… but for now we're just dealing with the page loading… the function also shows the values or what is selected in a dynamic table that is created using a function called defaultTable()just ignore that for now, it's the填充我感兴趣的 JSON 对象（并且遇到问题）。
var selectMenuArray = ["cat", "catOpt", "tariff", "tariffOpt"], // these are the IDs of the select menus...
selObj = {};
function setUpTable(selectArray, theObj){
// okay, if we enter the page and and the user already has a tarif selected (so it is shown in the menus) we wish to show the table with the
// default/original values...
var currentSelect,
catA = [],
catOptA = [],
tarA = [],
tarOptA = [],
catOptForObj,
tariffForObj,
tariffOptForObj,
temp1 = {},
temp2 = {},
temp3 = {},
i;
// loop through the 4 menus and see what is selected
for(i=0;i<selectArray.length;i++){
// let's look at the options to see if any are selected by looping through the <option>
currentSelect = document.getElementById(selectArray[i]);
for(j=0;j<currentSelect.length;j++){
// do we have an options with the selected attribute?
if(currentSelect.options[j].selected == true){
// okay, we need to make sure the table is shown then the correct values are shown?
// we know what the Menu is... selectArray[i], and this is the text... currentSelect.options[j].
// lets build up whet's selected in Arrays...
switch(selectArray[i]){
case "cat":
catA.push(currentSelect.options[j].value);
break;
case "catOpt":
catOptA.push(currentSelect.options[j].value);
catOptForObj = catOptForObj + '"' + currentSelect.options[j].value + '":"' + "% to come later" + '",';
break;
case "tariff":
tarA.push(currentSelect.options[j].value);
tariffForObj = tariffForObj + '"' + currentSelect.options[j].value + '":"' + "% to come later" + '",';
break;
case "tariffOpt":
tarOptA.push(currentSelect.options[j].value);
tariffOptForObj = tariffOptForObj + '"' + currentSelect.options[j].value + '":"' + "% to come later" + '",';
break;
default:
// no default?
}
}
}
}
// now we can build the table
if(catA.length > 0 || catOptA.length > 0 || tarA.length > 0 || tarOptA.length > 0){
// show table...
$("#dynamicTableHolder table").css("visibility","visible").hide().fadeIn('slow');
for(i=0;i<selectArray.length;i++){
switch(selectArray[i]){
case "cat":
defaultTable(catA, "dtCats");
theObj.cat = catA[0];
break;
case "catOpt":
defaultTable(catOptA, "dtTariffs");
temp1 = '"{' + catOptForObj.substring(0, catOptForObj.length-1).replace(/undefined/g, "") + '}"';
theObj = jQuery.parseJSON('"catOptions":' + temp1);
break;
case "tariff":
defaultTable(tarA, "dtCatOpts");
temp2 = "{" + tariffForObj.substring(0, tariffForObj.length-1).replace(/undefined/g, "") + "}";
//theObj = jQuery.parseJSON('"tariff":' + temp2);
break;
case "tariffOpt":
defaultTable(tarOptA, "dtTariffOpts");
temp3 = "{" + tariffOptForObj.substring(0, tariffOptForObj.length-1).replace(/undefined/g, "") + "}";
//theObj = jQuery.parseJSON('"tarOptions":' + temp3);
break;
default:
// no default?
}
}
}
}
我在制作 JSON 对象时遇到问题，我想做的是在循环时连接字符串，然后使用 jQuery.parseJSON 方法将这些字符串转换为对象……但是我没有正确执行此操作。我什至尝试在创建 temp1 时更改引号。
我知道这很复杂，我可能会问很多，但谁能看到我做错了什么。我对 jQuery.parseJSON 不太熟悉，所以任何建议都会很棒，因为我觉得我快疯了！
如果我含糊不清或不能很好地解释自己，请这么说......我也把它放在小提琴上...... http://jsfiddle.net/itakesmack/JSRt7/1/
请注意这是一个工作进度，因此某些项目可能丢失或需要开发（或者我可能有其他错误......但我希望不会）。