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Why does “_” (underscore) match “-” (hyphen)?
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I had a similar issue with space and hyphens while matching strings with exact match:
SELECT id FROM location WHERE name = 'IND - HQ';
The above query didn't return any records in MySQL. I had to escape the spaces and hyphens and use LIKE instead of exact match with equals (=) as f...
base64 encoded images in email signatures
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You can use an online tool or a few lines of code to generate the base 64 string.
The syntax to source the image from inline data is:
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="Red...
Simplest way to detect a mobile device in PHP
... a mobile browser in PHP.
The code detects a user based on the user-agent string by preg_match()ing words that are found in only mobile devices user-agent strings after hundreds of tests. It has 100% accuracy on all current mobile devices and I'm currently updating it to support more mobile devices...
Using jquery to get all checked checkboxes with a certain class name
...alue attributes of your check boxes to get their value in a coma separated string
– Kamran Ali
May 13 '15 at 17:39
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Is it possible to use jQuery .on and hover?
...e, you may see the
pseudo-event-name "hover" used as a shorthand for the string
"mouseenter mouseleave". It attaches a single event handler for those
two events, and the handler must examine event.type to determine
whether the event is mouseenter or mouseleave. Do not confuse the
"hover" p...
mailto link with HTML body
...tlook. Note that you must only encode the body text, not the entire mailto string; and you don't need spaces before/after the \n.
– Luke
Nov 12 '14 at 21:42
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How to set transform origin in SVG
...ct to .attrs instead of repeating .attr for every attribute.
When using a string template literal, be aware of line-breaks as illustrated in the first example. This will include a newline in the output and may break your code.
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Calling Objective-C method from C++ member function?
... case for xcode project I open xcode project file throught TextEdit, found string which contents interest file, it should be like:
/* OnlineManager.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = OnlineManager.cpp; sourceTree = "<group>"; };
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What is the correct way to get a subarray in Scala?
...Array("foo", "hoo", "goo", "ioo", "joo").slice(1, 4)
res6: Array[java.lang.String] = Array(hoo, goo, ioo)
It works like in python.
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How to override to_json in Rails?
...oked to create the data structure, and then that hash is encoded as a JSON string using ActiveSupport::json.encode. This happens for all types: object, numeric, date, string, etc (see the ActiveSupport code).
ActiveRecord objects behave the same way. There is a default as_json implementation that c...