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Javascript calculate the day of the year (1 - 366)
...h andnow's time is before 1AM (eg 00:59:59). This is due to the code not taking daylight savings time into account. You should compensate for this:
var now = new Date();
var start = new Date(now.getFullYear(), 0, 0);
var diff = (now - start) + ((start.getTimezoneOffset() - now.getTimezoneOff...
How to check if a String is numeric in Java
How would you check if a String was a number before parsing it?
39 Answers
39
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Change an HTML5 input's placeholder color with CSS
...ferent implementations: pseudo-elements, pseudo-classes, and nothing.
WebKit, Blink (Safari, Google Chrome, Opera 15+) and Microsoft Edge are using a pseudo-element: ::-webkit-input-placeholder. [Ref]
Mozilla Firefox 4 to 18 is using a pseudo-class: :-moz-placeholder (one colon). [Ref]
Mozilla Fir...
Alias with variable in bash [duplicate]
I want to create an alias in bash like this:
6 Answers
6
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C library function to perform sort
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qsort() is the function you're looking for. You call it with a pointer to your array of data, the number of elements in that array, the size of each element and a comparison function.
It does its magic and your array is sorted in-place. An example follows:
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F# development and unit testing?
...got started with F#, which is my first functional language. I have been working quasi-exclusively with C#, and enjoy a lot how F# leads me to re-think how I write code. One aspect I find a bit disorienting is the change in the process of writing code. I have been using TDD for years in C# now, and r...
Pandas convert dataframe to array of tuples
...pulated some data using pandas and now I want to carry out a batch save back to the database. This requires me to convert the dataframe into an array of tuples, with each tuple corresponding to a "row" of the dataframe.
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How to specify the private SSH-key to use when executing shell command on Git?
A rather unusual situation perhaps, but I want to specify a private SSH-key to use when executing a shell (git) command from the local computer.
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c# datatable to csv
Could somebody please tell me why the following code is not working. The data is saved into the csv file, however the data is not separated. It all exists within the first cell of each row.
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How do you run multiple programs in parallel from a bash script?
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