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} else {
reject("error");
→Promise
function getPromise(waittime:string): Promise<string> {
return new Promise<string>((resolve, reject) => {
if (isNumberisNaN(Number(waittime)) ) { reject("error"); } else {
const wt = parseInt(waittime);
setTimeout(() => {
resolve(`WAIT ${wt}`);
}, wt);
}
});
.catch((e) => {
console.log(e);
});
getPromise("aaaaa")
.then((v) => {
console.log(v);
})
.catch((e) => {
console.log(e);
});
}
usePromise();
*結果
error
WAIT 2000
© 2006 矢木浩人
