[英]How to put an Array object into JSON?
I have written the following Javascript code. 我已经编写了以下Javascript代码。 It's the best I could do to get my data formatted as valid JSON:
最好使我的数据格式化为有效JSON:
var roles = getSelectedRoles(); // returns an Array object
/* TODO: Find a better way to get the roles into my JSON data */
var rolesString = '["' + roles[0] + '"';
if (roles.length > 1)
for (var i = 1; i < roles.length; i++)
rolesString += ',"' + roles[i] + '"';
rolesString += ']';
var lid = $('#lid').val();
var json = '{ "id": "' + lid + '", "roles":' + rolesString + '}';
As you can see, I am building my JSON with string concatenation looping thru my Array object. 如您所见,我正在通过字符串对象通过Array对象循环构建JSON。 This is so ugly and it seems like there ought to be a clean way of inserting my Array data into my JSON.
这太丑陋了,似乎应该有一种将Array数据插入JSON的干净方法。
If its just inserting array object into another object then: 如果只是将数组对象插入另一个对象,则:
var selRoles = getSelectedRoles();
var lid = $('#lid').val();
var json = {
id:lid ,
roles: selRoles
};
If you need the whole object to be represented as a String then you can use Douglas Crockford's JSON2.js to achieve the same. 如果需要将整个对象表示为String,则可以使用Douglas Crockford的JSON2.js来实现。
Include the js file mentioned above in your page and then you use: 在页面中包含上述js文件,然后使用:
var jsonString = JSON.stringify(json) //json is from previous code.
Can you try: 你能试一下吗:
<script type="text/javascript">
var jsonObj = {
id: lid,//$('#lid').val()
roles:roles // getSelectedRoles()
}
var jsonStr = json_encode(jsonObj);
</script>
You can find the function: json_encode at here 您可以在此处找到函数: json_encode
您可以使用角色数组的join函数:
var rolesString = '["' + roles.join('", "') + '"]';
当前的浏览器提供了JSON对象类型,可以使这种事情变得微不足道(JSON.stringify(obj))..例如,请参见此处
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