jQuery getJSON 将结果保存到变量中
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jQuery getJSON save result into variable
提问by user1229351
I use getJSON to request a JSON from my website. It works great, but I need to save the output into another variable, like this:
我使用 getJSON 从我的网站请求 JSON。它工作得很好,但我需要将输出保存到另一个变量中,如下所示:
var myjson= $.getJSON("http://127.0.0.1:8080/horizon-update", function(json) {
});
I need to save the result into myjson
but it seems this syntax is not correct. Any ideas?
我需要将结果保存到,myjson
但似乎这种语法不正确。有任何想法吗?
采纳答案by webdeveloper
You can't get value when calling getJSON
, only after response.
调用时无法获取值getJSON
,只能在响应后获取。
var myjson;
$.getJSON("http://127.0.0.1:8080/horizon-update", function(json){
myjson = json;
});
回答by Ravi Gadag
$.getJSon expects a callback functions either you pass it to the callback function or in callback function assign it to global variale.
$.getJSon 需要一个回调函数,要么将其传递给回调函数,要么在回调函数中将其分配给全局变量。
var globalJsonVar;
$.getJSON("http://127.0.0.1:8080/horizon-update", function(json){
//do some thing with json or assign global variable to incoming json.
globalJsonVar=json;
});
IMO best is to call the callback function. which is nicer to eyes, readability aspects.
IMO 最好是调用回调函数。这对眼睛更好,可读性方面。
$.getJSON("http://127.0.0.1:8080/horizon-update", callbackFuncWithData);
function callbackFuncWithData(data)
{
// do some thing with data
}