是否可以在 json 中存储 javascript 数组？
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is it possible to store javascript array in json?
提问by Peter Wateber
Possible Duplicate:
Convert Javascript Array to JSON
可能的重复：
将 Javascript 数组转换为 JSON
I am trying to figure out how to return an array and store it in json variable as string, is that possible? [If not, how can I return all the outputs and store it json?] - If you know what I mean...
我想弄清楚如何返回一个数组并将其作为字符串存储在 json 变量中，这可能吗？[如果没有，我如何返回所有输出并将其存储为 json？] - 如果你知道我的意思......
//arr = ["a", "b", "c", "d", "ddd"]
//largest = 3
var generateEntryCodes = function(arr, largest) {
var newText = ""
for(var i=0; i < arr.length; i++) {
if (arr[i] == null) {
arr.splice(i, 1);
i--;
}
var counts = arr[i].length != largest ? (parseInt(largest) - parseInt(arr[i].length)) : 0
for (var z=0; z<counts;z++)
newText += "0"
var result = arr[i].splice( 0, 0, newText )
newText = ""
result = [{
"result": result,
"total": result.length
}]
}
return result
}
I am try to output the above code as:
我尝试将上述代码输出为：
00a
00b
00c
00d
ddd
But as I flash the result json. I only get "ddd"... So I tried adding before the result = [{}]jSON code:
但是当我刷新结果json时。我只得到“ddd”...所以我尝试在result = [{}]jSON 代码之前添加：
$("textarea").val( $("textarea").val("") + result + "\n")
//outputs:
00a
00b
00c
00d
ddd
How can I get all the outputs from resultvariable and store it in JSONvariable.
如何从结果变量中获取所有输出并将其存储在JSON变量中。
Problem: Code only store into JSON the last array.
问题：代码仅将最后一个数组存储到 JSON 中。
回答by Juri
Generally speaking you can simply construct your JavaScript object and then serialize it to JSON like in the example below:
一般来说，您可以简单地构建 JavaScript 对象，然后将其序列化为 JSON，如下例所示：
var myArray = ['a','b','c'];
var jsonString = JSON.stringify(myArray);
That should work. Note that you might have to include JSON2.jsin case your browser doesn't support it natively.
那应该有效。请注意，您可能必须包含JSON2.js，以防您的浏览器本身不支持它。
//Edit:
That should work: http://jsbin.com/welcome/31083/edit
//编辑：
这应该有效：http: //jsbin.com/welcome/31083/edit
Here's the code:
这是代码：
var generateEntryCodes = function(arr, largest) {
var newText = "",
codes = [],
currentElement,
result;
for(var i=0; i < arr.length; i++) {
currentElement = arr[i];
var zerosToPrepend = largest - currentElement.length;
for (var z = 0; z < zerosToPrepend; z++){
newText += "0"
}
currentElement = newText + currentElement;
codes.push(currentElement);
newText = ""
}
result = {
codes: codes,
total: codes.length
};
return result
}
var result = generateEntryCodes(["a", "b", "c", "d", "ddd"], 3);
console.log(result);
This should return a JavaScript object that looks as follows:
这应该返回一个如下所示的 JavaScript 对象：
{"codes": ["00a", "00b", "00c", "00d", "ddd"], "total": 5}
You can then take that result and use JSON.stringify(...)to convert it into a JSON string.
然后，您可以获取该结果JSON.stringify(...)并将其转换为 JSON 字符串。
回答by StaticVariable
if you have string like aaa bbb cccthan first convert it into array
如果你有字符串aaa bbb ccc比先把它转换成数组
var str="aaa bbb ccc ddd";
var n=str.split(" ");
Now can use JSON.stringify(string)to convert string into json
现在可以JSON.stringify(string)用来将字符串转换为 json
var myjson=JSON.stringify(n);
