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Functional style of Java 8's Optional.ifPresent and if-not-Present?
...o = Optional.of(...);
OptionalConsumer.of(o).ifPresent(s ->System.out.println("isPresent "+s))
.ifNotPresent(() -> System.out.println("! isPresent"));
Update 1:
the above solution for traditional way of development when you have the value and want to process it but what if I wan...
What is the difference between varchar and varchar2 in Oracle?
... between an OCI client application and a database table, the OCI libraries convert the data between internal data types and external data types.
External types provide a convenience for the programmer by making it possible to work with host language types instead of proprietary data formats. OCI c...
How to make an HTTP request + basic auth in Swift
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I'm not sure if you need to escape anything before converting it to base64
– Sam Soffes
Feb 19 '16 at 5:50
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Python: How to get stdout after running os.system? [duplicate]
... didn't. I'm using ubuntu and this command: out = os.system('ffmpeg -i ' + converted_filename + ' -ss ' + str(thumbnail_frame_time) + ' -vf scale=254:152 -vframes 1 -vcodec png -an -y ' + file_name + '.png')
– Edhowler
Mar 4 at 18:59...
Best practice: ordering of public/protected/private within the class definition?
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My rationale for putting public methods at the top is that it defines the interface for your class, so anyone perusing your header file should be able to see this information immediately.
In general, private and protected members are less important to most people looking at the header file, unless...
How does strtok() split the string into tokens in C?
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strtok will tokenize a string i.e. convert it into a series of substrings.
It does that by searching for delimiters that separate these tokens (or substrings). And you specify the delimiters. In your case, you want ' ' or ',' or '.' or '-' to be the delimiter...
List distinct values in a vector in R
...els( data$product_code )
If it's not a factor, but it should be, you can convert it to factor first by using the factor() function, e.g.
levels( factor( data$product_code ) )
Another option, as mentioned above, is the unique() function:
unique( data$product_code )
The main difference between...
Unable to access JSON property with “-” dash
...-CodeSlayer2010: You should use style.boxShadow instead. The style object converts hyphens to camelCase.
– SLaks
Oct 5 '16 at 16:21
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How do you UrlEncode without using System.Web?
...ne Breaks
All of them listed here (other than HttpUtility.HtmlEncode) will convert "\n\r" into %0a%0d or %0A%0D
Please feel free to edit this and add new characters to my test string, or leave them in the comments and I'll edit it.
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IE9 border-radius and background gradient bleeding
...nal elements.
I grabbed a random 20x20 gradient PNG via a web search, and converted it into a data URI using an online tool. The resulting data URI is smaller than the CSS code for all that SVG mess, much less the SVG itself! (You could apply this conditionally to IE9 only using conditional style...