所以我有一个有趣的问题。(1)通过基于python的API端点从DB获取属性值或列表- property (2)使用请求结果为object - customObject"customProperty“设置。
在1和2之间,我需要等待请求返回值。我如何才能做到这一点?
function mainWrapperFunction() {
var property = apiRequestFunction();
// I need to wait for the result to return from the API request before going on
customObject["customProperty"] = property;
}
发布于 2018-06-25 23:07:56
您需要使用Promise。
async function mainWrapperFunction() {
var property = await apiRequestFunction();
// I need to wait for the result to return from the API request before going on
customObject["customProperty'] = property;
}
需要像下面这样从apiRequestFunction();
函数返回一个Promise -
function apiRequestFunction() {
return new Promise(resolve => {
resolve('Your value here');
});
}
发布于 2018-06-25 23:02:17
试试这个:
async function mainWrapperFunction() {
var property = await apiRequestFunction();
// I need to wait for the result to return from the API request before going on
customObject['customProperty'] = property;
}
有关asyc函数的更多详细信息,请参阅https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Instructions/async_function
https://stackoverflow.com/questions/51026432
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