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Saving timestamp in mysql table using php
...FROM_UNIXTIME yields a native mysql date type while php's date() returns a string.
– Richard Tuin
May 20 '16 at 6:19
...
Filter rows which contain a certain string
...filter a data frame using as criterion those row in which is contained the string RTB .
4 Answers
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What is the difference between square brackets and parentheses in a regex?
...rts that the subpattern in between these anchors are the entire match. The string will only match if the subpattern matches the entirety of it, not just a section.
() denotes a capturing group.
7|8|9 denotes matching either of 7, 8, or 9. It does this with alternations, which is what the pipe operat...
What is the purpose of base 64 encoding and why it used in HTTP Basic Authentication?
...t seems that the relevant character encoding to get the 'binary data' from string, should be iso-8859-1. (source)
– Myobis
Apr 24 '14 at 14:09
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Covariance, Invariance and Contravariance explained in plain English?
...ovariant, contravariant, or invariant? Covariant would mean that a List<String> is a subtype of List<Object>, contravariant that a List<Object> is a subtype of List<String> and invariant that neither is a subtype of the other, i.e. List<String> and List<Object> ar...
catch exception that is thrown in different thread
...cess exception in some task's thread
class Program
{
static void Main(string[] args)
{
Task<int> task = new Task<int>(Test);
task.ContinueWith(ExceptionHandler, TaskContinuationOptions.OnlyOnFaulted);
task.Start();
Console.ReadLine();
}
s...
How do I send a POST request as a JSON?
...
This works perfect for Python 3.5, if the URL contains Query String / Parameter value,
Request URL = https://bah2.com/ws/rest/v1/concept/
Parameter value = 21f6bb43-98a1-419d-8f0c-8133669e40ca
import requests
url = 'https://bahbah2.com/ws/rest/v1/concept/21f6bb43-98a1-419d-8f0c-8133...
Random color generator
...
You can remove .split('') call. String already have Array indexer.
– ujeenator
Jul 27 '15 at 6:08
4
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What is the difference between os.path.basename() and os.path.dirname()?
...ile name: here, 'foo.bar', and os.path.dirname(file_name) returns an empty string: ''.
– jkdev
Nov 26 '18 at 20:47
...
Android selector & text color
...d:gravity="center"
android:minHeight="98px"
android:text="@string/more"
android:textColor="@color/bright_text_dark_focused"
android:textSize="18dp"
android:textStyle="bold" />
</FrameLayout>
res/color/bright_text_dark_focused.xml
<?xml version=...