为函数内的全局变量赋值

时间:2013-05-04 12:04:08

标签: javascript jquery

我在向全局变量赋值并在函数内使用它时遇到问题。这是我的代码:

var chartinfo = {"c0":"0", "c1":"0"}; // This is my global variable
$.getJSON("http://127.0.0.1:8080/chartinfo", function(json1){
    chartinfo = json1; // I need to assign json1's value to chartinfo
});
$(function () {
    $(document).ready(function() {
        alert("external chartinfo " + chartinfo.c0.name); // I need to use chartinfo here

1 个答案:

答案 0 :(得分:2)

警报失败,因为您的请求尚未完成。你可以试试这个:

var chartinfo = {
    "c0": "0",
    "c1": "0"
};

var jqxhr = $.getJSON("http://127.0.0.1:8080/chartinfo", function (json1) {
    console.log("success");
})
    .done(function () {
    chartinfo = json1;
    alert("external chartinfo " + chartinfo.c0.name); // I need to use chartinfo here
})
    .fail(function () {
    console.log("error");
})

http://jsfiddle.net/ZpUsM/