如何将$ .getJSON对象存储在全局变量中并在以后导航 [英] How to store $.getJSON object in global variable and navigate through it later

问题描述

我正在尝试JQuery，并尝试创建一个函数来从JSON返回的API获取动态数据并将其存储在全局变量中(我不知道这是否是正确/最佳的方法).

到目前为止，我是

function getdata(url){
    var data = $.ajax({
        type: 'GET',
        url: url
    });
    return data;
};

到目前为止，一切正常，但是这会返回带有"responseJSON"键的对象，我似乎找不到找到导航至此键然后在其中的数组中进行$ .each循环的方法. /p>

所以问题是:

1. 这是正确/正确的方法吗?(否则请解释您的答案)
2. 如何在"responseJSON"键中浏览包含数组的多维对象.

解决方案

另一种方法是将回调传递给您的函数，以便您可以在函数内设置响应处理程序，并在调用getData方法时减少代码

function getdata(url, callback){
    var data = $.ajax({
                type: 'GET',
                url: url
            }).done(callback).error(function(){
               alert('Oppps...something went wrong')
            });
    return data;
};


getData('urlstring', function(data){
   /* doSomething with data */
})

I'm experimenting with JQuery and trying to create a function to get dynamic data from a JSON returned API and store it in a global variable (I don't know if this is the right/best way to do this).

What I have so far is

function getdata(url){
    var data = $.ajax({
        type: 'GET',
        url: url
    });
    return data;
};

So far everything works fine, but this returns an object with a "responseJSON" key and I can't seem to find a way to navigate to this key and then do a $.each loop through the arrays in it.

So the questions are:

1. Is this the right / way ( if not please explain your answer)
2. How do you navigate through a multidimensional object containing arrays in the "responseJSON" key.

解决方案

Another approach is to pass a callback to your function so you can set the response handler within the function and less code when you call your getData method

function getdata(url, callback){
    var data = $.ajax({
                type: 'GET',
                url: url
            }).done(callback).error(function(){
               alert('Oppps...something went wrong')
            });
    return data;
};


getData('urlstring', function(data){
   /* doSomething with data */
})

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