Tutorial by Topics: i

In MongoDB 3.0, MMAP (default) and WiredTiger are the stable storage engines. Usually, if your app is read-heavy, use MMAP. If its write-heavy, use WiredTiger. Your solution may also have a mixed replica set members where you can have one node configured with MMAP and another with WiredTiger. Yo...

Notification.requestPermission(callback) Notification.requestPermission().then(callback, rejectFunc) new Notification(title, options) notification.close() The Notifications API was designed to allow browser access to notifying the client. Support by browsers might be limited. Also suppo...

As with other relational database systems, SQL Server exposes metadata about your databases. This is provided through the ISO Standard INFORMATION_SCHEMA schema, or the SQL Server-specific sys catalog views.

  ![Alt text][id] ... intervening content ... [id]: /path/to/img.jpg "Optional title" The syntax for images is the same as that for links, but with an exclamation mark ! in front o...

thread() thread(thread&& other) explicit thread(Function&& func, Args&&... args) ParameterDetailsotherTakes ownership of other, other doesn't own the thread anymorefuncFunction to call in a seperate threadargsArguments for func Some notes: Two std::thread obje...

resource curl_init ([ string $url = NULL ] ) bool curl_setopt ( resource $ch , int $option , mixed $value ) bool curl_setopt_array ( resource $ch, array $options ) mixed curl_exec ( resource $ch ) void curl_close ( resource $ch ) ParameterDetailscurl_init-- Initialize a cURL sessionurl...

ParameterDetailscharacter_expressionthe existing string in your datastart_positionthe position in character_expression to delete length and then insert the replacement_stringlengththe number of characters to delete from character_expressionreplacement_stringthe sequence of characters to insert in c...

The source code for Reachability.h and Reachability.m can be found on Apple's developer documentation site. Caveats Unlike other platforms, Apple is yet to provide a standard set of APIs to determine an iOS device's network status and offer only these code examples linked above. The source fil...

Kotlin provides many extension methods on collections and iterables for applying functional-style operations. A dedicated Sequence type allows for lazy composition of several such operations. About laziness If you want to lazy process a chain, you can convert to a Sequence using asSequence(...

Subroutines get their arguments to magic variable called @_. While it doesn't have to be unpacked, it's recommended, as it helps readability, and prevents accidental changes as arguments of @_ are passed by reference (can be modified).

While many scripts, icons, and stylesheets can be written straight into HTML markup, it is best practice and more efficient to include these resources in their own file and link them to your document. This topic covers linking external resources such as stylesheets and scripts into an HTML document....

ParameterDetails--pullEnsures that the base image (FROM) is up-to-date before building the rest of the Dockerfile.

#See https://golang.org/pkg/text/template/ for Go Template Action and Function syntax expression = alert status {{.Last.Status}} and a variable {{.Eval .Alert.Vars.q | printf "%.2f"}} expression = `Use backticks to span multiple lines with line breaks in the Bosun config file` templ...

Scollector is a monitoring agent that can be used to send metrics to Bosun or any system that accepts OpenTSDB style metrics. It is modelled after OpenTSDB's tcollector data collection framework but is written in Go and compiled into a single binary. One of the design goals is to auto-detect servi...

Scollector can be used to monitor processes and services in Windows and Linux. Some processes like IIS application pools are monitored automatically, but usually you need to specify which processes and services you want to monitor.

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