javascript async script
<script async src="script.js"></script>javascript async script
<script async src="script.js"></script>async function in variable
function resolveAfter2Seconds(x) {
return new Promise(resolve => {
setTimeout(() => {
resolve(x);
}, 2000);
});
};
(async function(x) { // fonction asynchrone immédiatement appelée
var a = resolveAfter2Seconds(20);
var b = resolveAfter2Seconds(30);
return x + await a + await b;
})(10).then(v => {
console.log(v); // affiche 60 après 2 secondes.
});
var add = async function(x) {
var a = await resolveAfter2Seconds(20);
var b = await resolveAfter2Seconds(30);
return x + a + b;
};
add(10).then(v => {
console.log(v); // affiche 60 après 4 secondes.
});Copyright © 2021 Codeinu
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