tosync.js
merge async callback
example
following example shows how to use this library
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<p id="a">initial</p>
<script src="tosync.js"></script>
<script>
tosync.register('a', 3, function (hstore) {
document.querySelector('p').innerText = JSON.stringify(hstore);
}, function (e) {
console.log(e);
});
tosync.report('a', 'x', 1);
tosync.report('a', 'b', 1);
tosync.report('a', 'c', 1);
</script>
</body>
</html>soucre
var tosync = (function () {
"use strict";
var dict = {};
var nothing = function () {
};
var register = function (name, countdown, success, fail, timeout) {
dict[name] = {
countdown: countdown,
success: success,
fail: (typeof fail === 'undefined') ? nothing : fail,
hstore: {},
timeout: (typeof timeout === 'undefined') ? 0 : timeout
};
if (timeout) {
setTimeout(function () {
if (countdown > 0) {
fail(new Error('timeout'));
}
}, timeout);
}
};
var unregister = function (name) {
delete dict[name];
};
var report = function (name, key, value) {
var d = dict[name];
d.hstore[key] = value;
d.countdown -= 1;
if (d.countdown <= 0) {
try {
d.success(d.hstore);
}
catch (e) {
d.fail(e);
}
unregister(name);
}
};
return {
register: register,
unregister: unregister,
report: report
}
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