获取jQuery get（）。done（）函数的返回值 [英] get return value of jQuery get().done() function

问题描述

我有代码：

function images(){
    $.get("page").done(function(data) {
        manipulation to get required data
    });
}

我试图从get函数中获取变量，使用全局变量，返回值和函数外部的函数。有没有人知道如何从get函数内部获取变量并将其作为值返回如果我调用 images（）？

and I have tried to get a variable from inside the get function, using global variables, return values, and functions outside of the function. Does anyone know how I would be able to get a variable from inside the get function and return it as a value if I called images()?

推荐答案

由于 $。get（）异步执行，因此无法执行此操作。解决方案是使用图像中的回调来处理$ .get（）返回的值。

You can't do it since $.get() executes asynchronously. The solution is to use a callback in images to process the value returned by $.get()

function images(callback){
    $.get("page").done(function(data) {
        manipulation to get required data
        var d = ? //manipulated data that was supposed to be returned
        callback(d);
    });
}

然后

//calls images
images(function(data){
    //this method will get called when the $.get() is completed, and data will be the value passed to callback(?) in the done function
})

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