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Scripting SVG using the native DOM interfaces is currently (2016) in a state of slight change. The current SVG standard (1.1) is implemented well by most major web browsers. However, as the SVG 2.0 standard is under development, some browsers have begun to remove SVG 1.1 features that will be obso...

A few notes that are already mentioned in the official docs here and here: If an object has a parent, it has to be in the same thread as the parent, i.e. it cannot be moved to a new thread, nor can you set a parent to an object if the parent and the object live in different threads When an ob...

Metaprogramming can be described in two ways: “Computer programs that write or manipulate other programs (or themselves) as their data, or that do part of the work at compile time that would otherwise be done at runtime”. More simply put: Metaprogramming is writing code that writes code during run...

xcodebuild [-project name.xcodeproj] -scheme schemename [[-destination destinationspecifier] ...] [-destination-timeout value] [-configuration configurationname] [-sdk [sdkfullpath | sdkname]] [action ...] [buildsetting=value ...] [-userdefault=value ...] OptionDescription-projectBuild the p...

DENSE_RANK ( ) OVER ( [ <partition_by_clause> ] < order_by_clause > ) RANK ( ) OVER ( [ partition_by_clause ] order_by_clause ) ArgumentsDetails<partition_by_clause>Divides the result set produced by the FROM clause into partitions to which the DENSE_RANK function is appli...

Sitecore out of the box supports load-balancing for multiple server. Typical configuration is Content Management (CM) and Content Delivery (CD) server, however multiple CM and CD servers are supported too.

object.instance_eval 'code' object.instance_eval 'code', 'filename' object.instance_eval 'code', 'filename', 'line number' object.instance_eval { code } object.instance_eval { |receiver| code } ParameterDetailsstringContains the Ruby source code to be evaluated.filenameFile name to use f...

These “hacks” may be used to target a specific browser/client. This may be used to work around browser rendering differences by applying styles in one of those wrappers listed above.

[A block formatting context is a part of a visual CSS rendering of a Web page. It is the region in which the layout of block boxes occurs and in which floats interact with each other.][1] [1]: https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Block_formatting_context MDN

This is used when the element's dimensions (width and height) are not known or dynamic. Prefer to use Flexbox over all other options as it is optimized for user interface design.

Pdb Pdb can also print out all existing variables in global or local scope, by typing globals() or locals() in (Pdb) prompt respectively.