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How to write asynchronous functions for Node.js
...cks.
How should I implement error event handling correctly
Generally API's give you a callback with an err as the first argument. For example
database.query('something', function(err, result) {
if (err) handle(err);
doSomething(result);
});
Is a common pattern.
Another common pattern i...
Java: Date from unix timestamp
...
java.time
Java 8 introduced a new API for working with dates and times: the java.time package.
With java.time you can parse your count of whole seconds since the epoch reference of first moment of 1970 in UTC, 1970-01-01T00:00Z. The result is an Instant.
In...
Java 反射最佳实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...），仅仅在自己写一些框架和注解框架时会用到，所以对api总是不熟悉。每次用到api都要去网上查，查了后又得自己实验下，很不爽。更差劲的是这样写法可读性十分低下。我不希望这样写反射，我希望反射能像：
String str = n...
How to solve error “Missing `secret_key_base` for 'production' environment” (Rails 4.1)
...edit it:
$ vi /etc/profile
Go to the bottom of the file using Shift+G (capital "G") in vi.
Write your environment variable with the GENERATED_CODE, pressing i to insert in vi. Be sure to be in a new line at the end of the file:
$ export SECRET_KEY_BASE=GENERATED_CODE
Save the changes and clos...
How do I typedef a function pointer with the C++11 using syntax?
...syntax, which largely eliminates the need for custom typedefs for specific APIs that make it easier to write that API's compound types.
– bames53
May 14 '13 at 0:12
10
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How can a web application send push notifications to iOS devices? [closed]
...d push notifications to Firefox and Chrome (Desktop/Android) with the Push API.
The Push API is used in conjunction with the older Web Notifications to display the message. The advantage is that the Push API allow the notification to be delivered even when the user is not surfing your website, beca...
Is Haxe worth learning? [closed]
..., C++, etc. If those types you define do not depend on a specific platform API, they can be reused from platform to platform with no effort at all. All the platforms also share common APIs like XML access, HTTP connections and reflection. Platforms that have things in common (i.e. Neko and PHP) shar...
Print a list of all installed node.js modules
...at node_modules, then ../node_modules, ../../node_modules ( see nodejs.org/api/… ) and then from NODE_PATH env var
– Andrey Sidorov
Dec 21 '12 at 1:28
4
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How to get all child inputs of a div element (jQuery)
...his is another type of selector like `:checkbox' is, see here for details: api.jquery.com/input-selector And here's a more complete list of these: api.jquery.com/category/selectors/form-selectors
– Nick Craver♦
Mar 8 '10 at 16:18
...
Custom HTTP Authorization Header
...put custom data in an HTTP authorization header. We're designing a RESTful API and we may need a way to specify a custom method of authorization. As an example, let's call it FIRE-TOKEN authentication.
...