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// Delay function execution, return promise for delayed function result
"use strict";
var isValue = require("es5-ext/object/is-value")
, callable = require("es5-ext/object/valid-callable")
, nextTick = require("next-tick")
, ensureTimeout = require("timers-ext/valid-timeout")
, deferred = require("../../deferred");
var apply = Function.prototype.apply, delayed;
delayed = function (fn, args, resolve, reject) {
var value;
try {
value = apply.call(fn, this, args);
} catch (e) {
reject(e);
return;
}
resolve(value);
};
module.exports = function (timeout) {
var fn, result, delay;
fn = callable(this);
if (isValue(timeout)) {
timeout = ensureTimeout(timeout);
delay = setTimeout;
} else {
delay = nextTick;
}
result = function () {
var def = deferred();
delay(delayed.bind(this, fn, arguments, def.resolve, def.reject), timeout);
return def.promise;
};
result.returnsPromise = true;
return result;
};
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