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CSS: center element within a element
... display: flex; /* NEW, Spec - Firefox, Chrome, Opera */
justify-content: center;
align-items: center;
width: 400px;
height: 200px;
background-color: #3498db;
}
.inner-element{
width: 100px;
height: 100px;
background-color: #f1c40f;
}
<div class="flex-container"&g...
iOS - Dismiss keyboard when touching outside of UITextField
...Where aTextField is the textfield that is responsible for the keyboard)
Swift 3 version looks like that
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(self.dismissKeyboard (_:)))
self.view.addGestureRecognizer(tapGesture)
For dismissKeyboard
@objc func dismissKeyboard (...
Traverse a list in reverse order in Python
...
To avoid the confusion: reversed() doesn't modify the list. reversed() doesn't make a copy of the list (otherwise it would require O(N) additional memory). If you need to modify the list use alist.reverse(); if you need a copy of the list in reversed order use alist[::-1...
Is there a `pointer-events:hoverOnly` or similar in CSS?
...
this is beutifull
– user2860957
Sep 29 '17 at 3:22
2
...
How can I create a correlation matrix in R?
...what I'm doing. However, I did manage to answer this question for myself.
if d is the matrix (or the original data frame) and the column names are what you want, then the following works:
axis(1, 1:dim(d)[2], colnames(d), las=2)
axis(2, 1:dim(d)[2], colnames(d), las=2)
las=0 would flip the names...
Getting the count of unique values in a column in bash
... with several columns. I want to count the frequency of occurrence of the different values in a column for all the files in a folder and sort them in decreasing order of count (highest count first). How would I accomplish this in a Linux command line environment?
...
Adjust UILabel height depending on the text
...
If you are sizing your labels like this, you are doing it wrong. You should use [label sizeToFit].
– Marián Černý
Apr 26 '13 at 6:26
...
Is there a Python caching library?
...orator. You could probably get it to do what you want without too much modification.
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Changing the size of a column referenced by a schema-bound view in SQL Server
... the schema of the underlying table or tables. When
SCHEMABINDING is specified, the base
table or tables cannot be modified in
a way that would affect the view
definition. The view definition itself
must first be modified or dropped to
remove dependencies on the table that
is to be mod...
How to add an extra source directory for maven to compile and include in the build jar?
...t;
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.7</version>
<executions>
<execution>
<id>add-source</id>
<phase>ge...