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Why not use Double or Float to represent currency?
...power of 10 to get 1/3. You could settle on a long sequence of 3's and a small exponent, like 333333333 * 10-10, but it is not accurate: if you multiply that by 3, you won't get 1.
However, for the purpose of counting money, at least for countries whose money is valued within an order of magnitude...
How to test if a string is basically an integer in quotes using Ruby
...z/.match(string_to_check)
#Is not a positive number
else
#Is all good ..continue
end
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Difference between System.DateTime.Now and System.DateTime.Today
...as DateTimeKind.Local assigned to its Kind property. It is equivalent to calling any of the following:
DateTime.UtcNow.ToLocalTime()
DateTimeOffset.UtcNow.LocalDateTime
DateTimeOffset.Now.LocalDateTime
TimeZoneInfo.ConvertTime(DateTime.UtcNow, TimeZoneInfo.Local)
TimeZoneInfo.ConvertTimeFromUtc(...
Image Greyscale with CSS & re-color on mouse-over?
...rayscale(100%);
/* Chrome 19+ & Safari 6+ */
-webkit-transition: all .6s ease;
/* Fade to color for Chrome and Safari */
-webkit-backface-visibility: hidden;
/* Fix for transition flickering */
}
img.grayscale:hover {
filter: none;
-webkit-filter: grayscale(0%);
}
sv...
What does the git index contain EXACTLY?
...ns an article on what an index includes:
The index is a binary file (generally kept in .git/index) containing a sorted list of path names, each with permissions and the SHA1 of a blob object; git ls-files can show you the contents of the index:
$ git ls-files --stage
100644 63c918c667fa005ff12ad89...
Is it better practice to use String.format over string Concatenation in Java?
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They are all bad practice. Use StringBuilder.
– Amir Raminfar
Aug 11 '11 at 16:37
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Look up all descendants of a class in Ruby
... @AmolPujari p ObjectSpace.each_object(Class) will print out all the classes. You can also get the descendants of any class you want by substutiting its name for self in the line of code in the method.
– BobRodes
Apr 3 '19 at 20:38
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Moment.js: Date between dates
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For React after npm install moment, import moment from 'moment';
– John
2 days ago
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Android Studio rendering problems
I'm using Android Studio 0.2.3 and when opened an activity layout normally, the preview should appear on the right side, so that I can switch between Text and Design mode, which should again show the preview of the layout.
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How to use greater than operator with date?
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In your statement, you are comparing a string called start_date with the time.
If start_date is a column, it should either be
SELECT * FROM `la_schedule` WHERE start_date >'2012-11-18';
(no apostrophe)
or
SELECT * FROM `la_schedule` WHERE `start_date` >...