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Creating a zero-filled pandas data frame
...
Testing this I find %timeit temp = np.zeros((10, 11)); d = pd.DataFrame(temp, columns = ['col1', 'col2',...'col11']) takes 156 us. But %timeit d = pd.DataFrame(0, index = np.arange(10), columns = ['col1', 'col2',...'col11']) ...
How can I count the number of matches for a regex?
...completely different.
Complete example:
import java.util.regex.*;
class Test {
public static void main(String[] args) {
String hello = "HelloxxxHelloxxxHello";
Pattern pattern = Pattern.compile("Hello");
Matcher matcher = pattern.matcher(hello);
int count = 0;...
Difference between using Throwable and Exception in a try catch
...al in a framework type application (for example an application server or a testing framework) where it can be running unknown code and should not be affected by anything that goes wrong with that code, as much as possible.
s...
Does uninstalling a package with “pip” also remove the dependent packages?
...
@loved.by.Jesus - I'm on python 3.8.3 and I tested and still see the command executed as pip-autoremove (dash not underscore). pip_autoremove gives me command not found.
– bwv549
Jun 19 at 5:38
...
Create Directory if it doesn't exist with Ruby
...ork. For e.g I wanted to create following directory /home/jignesh/reports/test but using this solution raised RUBY (Errno::ENOENT), no such file or directory @ dir_s_mkdir. So the reliable solution is using FileUtils.mkdir_p
– Jignesh Gohel
Apr 6 at 11:25
...
What is “point free” style (in Functional Programming)?
...out any other library:
interface Transaction {
amount: number;
}
class Test {
public getPositiveNumbers(transactions: Transaction[]) {
return transactions.filter(this.isPositive);
//return transactions.filter((transaction: {amount: number} => transaction.amount > 0));
}
pub...
How to delete a word and go into insert mode in Vim?
... expression, and b is what you will replace all matches of a with. You can test regexes with vim's / mode. Replace % with a line number or range if you don't want to substitute on all lines.
– Braden Best
Aug 21 '14 at 18:11
...
Remove/Add Line Breaks after Specific String using Sublime Text
...Command+G > ESC > Right Arrow > line break
and Windows/Linux (untested):
Control+F > type string > Alt+F3 > ESC > Right Arrow > line break
The important part being Control+Command+G to select all matches.
Once you've selected the text you're looking for, you can use ...
How to style a div to be a responsive square? [duplicate]
...='square-box'>
<div class='square-content'>
<h3>test</h3>
</div>
</div>
CSS
.square-box{
position: relative;
width: 50%;
overflow: hidden;
background: #4679BD;
}
.square-box:before{
content: "";
display: block;
padding-t...
Why is early return slower than else?
... the only difference is the name of the function. In particular the timing test does a lookup on the global name. Try renaming without_else() and the difference disappears:
>>> def no_else(param=False):
if param:
return 1
return 0
>>> T(lambda : no_else()).repeat(...