jquery - 如何将文本输入 value() 添加到 JSON 数组中

Question

您能看一下This Demo吗？让我如何将 data 添加/插入到 JSON 数组用户中？

"users":[
    {"user":"John", "age":36, "grade":"C", "mark":88 }, 
    {"user":"Rose", "age":28, "grade":"B", "mark":90 }, 
    ....
]

$(document).ready(function () {
    $("#addtoJSON").click(function () {
        var user = $("#user").val();
        var age = $("#age").val();
        var grade = $("#grade").val();
        var mark = $("#mark").val();
        // alert(user);
        var data = 'name=' + user + '&age=' + age + '&grade=' + grade + '&mark=' + mark;
        alert(data);
    });
});

谢谢

Answer 1

使用此代码:

var dataArr = [];
var data = JSON.stringify({  // use JSON.stringify to convert object to JSON
    name: user,
    age: age,
    grade: grade,
    mark: +mark
});
dataArr.push(data);
alert(data); // well formed JSON

DEMO