write an promise code example
Example 1: js create a promise
let promise = new Promise((resolve , reject) => {
fetch("https://myAPI")
.then((res) => {
resolve(res);
})
.catch((err) => {
reject(err);
});
});
Example 2: javascript create promise
const promise = new Promise(executor);
const coinflip = (bet) => new Promise((resolve, reject) => {
const hasWon = Math.random() > 0.5 ? true : false;
if (hasWon) {
setTimeout(() => {
resolve(bet * 2);
}, 2000);
} else {
reject(new Error("You lost..."));
}
});