如何在 javascript/jquery 中构建 json 字符串？
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How can I build a json string in javascript/jquery?
提问by Kenneth Vogt
I would like to build a json string programmatically. The end product should be something like:
我想以编程方式构建一个 json 字符串。最终产品应该是这样的：
var myParamsJson = {first_name: "Bob", last_name: "Smith" };
However I would like to do it one parameter at a time. If it were an array, I would just do something like:
但是我想一次只做一个参数。如果它是一个数组，我会做这样的事情：
var myParamsArray = [];
myParamsArray["first_name"] = "Bob";
myParamsArray["last_name"] = "Smith";
I wouldn't even mind building that array and then converting to json. Any ideas?
我什至不介意构建该数组然后转换为 json。有任何想法吗？
回答by Darin Dimitrov
You could do a similar thing with objects:
你可以对对象做类似的事情：
var myObj = {};
myObj["first_name"] = "Bob";
myObj["last_name"] = "Smith";
and then you could use the JSON.stringifymethod to turn that object into a JSON string.
然后您可以使用该JSON.stringify方法将该对象转换为 JSON 字符串。
var json = JSON.stringify(myObj);
alert(json);
will show:
将会呈现：
{"first_name":"Bob","last_name":"Smith"}
This method is natively built into all modern browsers (even IE8 supports it, even if IE8 is very far from being a modern browser). And if you need to support some legacy browsers you could include the json2.jsscript.
这种方法原生内置于所有现代浏览器中（即使 IE8 也支持它，即使 IE8 远非现代浏览器）。如果你需要支持一些旧浏览器，你可以包含json2.js脚本。
回答by rdougan
Create a normal object:
创建一个普通对象：
var o = {
first_name: 'Robert',
last_name: 'Dougan'
};
And then use JSON.stringifyto make it a string:
然后使用JSON.stringify使其成为字符串：
var string = JSON.stringify(o); //"{"first_name":"Robert","last_name":"Dougan"}"
