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Convert UTC date time to local date time
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function localizeDateStr (date_to_convert_str) { var date_to_convert = new Date(date_to_convert_str); var local_date = new Date(); date_to_convert.setHours(date_to_convert.getHours()+local_date.getTimezoneOffset()); return date_to_convert.toString();...
Why does X[Y] join of data.tables not allow a full outer join, or a left join?
...n of X[Y]
le <- Y[X]
mallx <- merge(X, Y, all.x = T)
# the column order is different so change to be the same as `merge`
setcolorder(le, names(mallx))
identical(le, mallx)
# [1] TRUE
If you want a full outer join
# the unique values for the keys over both data sets
unique_keys <- uniq...
HashSet versus Dictionary w.r.t searching time to find if an item exists
...for both, for me, in this test.
Test Code:
private const int TestReps = 100_000_000;
[Test]
public void CompareHashSetContainsVersusDictionaryContainsKey()
{
for (int j = 0; j < 10; j++)
{
var rand = new Random();
var dict = new Dictionary<int, int>();
var ha...
How to apply two CSS classes to a single element
...16px;
color:#000000;
text-align:center;
}
<div class="box color">orderlist</div>
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Removing viewcontrollers from navigation stack
...e is also animated parameter to enable animation.
func setViewControllers(_ viewControllers: [UIViewController], animated: Bool)
Example in swift for question
func goToFifthVC() {
var currentVCStack = self.navigationController?.viewControllers
currentVCStack?.removeSubrange(2...3)
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How can I make my own base image for Docker?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Generate 'n' unique random numbers within a range [duplicate]
... way, you will get all the numbers in the particular range but in a random order.
But you can use random.sample to get the number of elements you need, from a range of numbers like this
print random.sample(range(numLow, numHigh), 3)
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What do I need to read to understand how git works? [closed]
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For me, the following three resources were very, very helpful, in this order:
The Thing About Git explained why I should even care
Git Magic explained how to get started
Git The Basics [pdf] explained - graphically, and in detail - what happens when I add, remove, merge, etc.
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How to remove files and directories quickly via terminal (bash shell) [closed]
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Run a string as a command within a Bash script
...xamples I have used to better understand how eval works. linuxhint.com/bash_eval_command
– student0495
Apr 6 at 11:54
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