js use await in synchronous method
var btn = document.getElementById("btn");
btn.addEventListener("click", handler, false);
function handler(e) {
console.log("handler triggered");
doSomething();
console.log("handler done");
}
function doSomething() {
doThis();
doThat();
doTheOther();
}
function doThis() {
console.log("doThis - start & end");
}
function doThat() {
console.log("doThat - start");
// do something that takes a while
var stop = Date.now() + 1000;
while (Date.now() < stop) {
// wait
}
console.log("doThat - end");
}
function doTheOther() {
console.log("doThat - start & end");
}
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