将Promise包裹在一个函数中，否则它将立即开始工作。另外，您可以将参数传递给函数：
var someFunction = function(username, password) {
return new Promise(function(resolve, reject) {
/*stuff using username, password*/
if ( /* everything turned out fine */ ) {
resolve("Stuff worked!");
} else {
reject(Error("It broke"));
}
});
}
然后，使用它：
someModule.someFunction(username, password).then(function(uid) {
/* stuff */
})
const someFunction = (username, password) => {
return new Promise((resolve, reject) => {
/*stuff using username, password*/
if ( /* everything turned out fine */ ) {
resolve("Stuff worked!");
} else {
reject(Error("It broke"));
}
});
};
用：
someModule.someFunction(username, password).then(uid => {
/* stuff */
});
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