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redgeoff/index.html

Last active August 29, 2015 14:05
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bluebird-chain-promises
Raw
index.html
<html>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bluebird/1.2.2/bluebird.js"></script>
<script>
function setTimeoutPromise(ms) {
return new Promise(function (resolve) {
setTimeout(resolve, ms);
});
}
function foo(item, ms) {
return function() {
return setTimeoutPromise(ms).then(function () {
document.write(item + '<br/>');
});
};
}
var items = ['one', 'two', 'three'];
function bar() {
var chain = Promise.resolve();
items.forEach(function (el, i) {
chain = chain.then(foo(el, (items.length - i)*1000));
});
return chain;
}
bar().then(function () {
document.write('done<br/>');
});
</script>
</html>
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