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What is difference between functional and imperative programming languages?
...1 + number2 + number3;
Each statement changes the state of the program, from assigning values to each variable to the final addition of those values. Using a sequence of five statements the program is explicitly told how to add the numbers 5, 10 and 15 together.
Functional languages:
The functio...
How to iterate over rows in a DataFrame in Pandas
I have a DataFrame from Pandas:
22 Answers
22
...
How to get my IP address programmatically on iOS/macOS?
...ddress and type-casting it to IPv4 and turning that to a string (basically from the high 32 bits of the 128-bit address.)
– Jens Alfke
Oct 9 '13 at 21:16
|...
What is a stack trace, and how can I use it to debug my application errors?
...ot more. What we're mostly concerned about is looking for methods that are from our code, which would be anything in the com.example.myproject package. From the second example (above), we'd first want to look down for the root cause, which is:
Caused by: java.sql.SQLException
However, all the met...
What is the maximum length of a URL in different browsers?
...r site to work for the majority of
Internet users.
(Note: this is a quote from an article written in 2006, but in 2015 IE's declining usage means that longer URLs do work for the majority. However, IE still has the limitation...)
Internet Explorer's limitations...
IE8's maximum URL length is 2083 c...
How to apply a CSS filter to a background image
...ion: fixed and left: 0; right: 0;. The difference in displaying them comes from the z-index values which have been set differently for the elements.
.background-image {
position: fixed;
left: 0;
right: 0;
z-index: 1;
display: block;
background-image: url('https://i.imgur.com/l...
How to make overlay control above all other controls?
...r Grid in your layout, give the control to be put on top a higher ZIndex.
From MSDN:
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" WindowTitle="ZIndex Sample">
<Canvas>
<Rectangle Canvas.ZIndex="3" Width="100" Height="100" Canvas.Top="100" Canvas.Left...
If I fork someone else's private Github repo into my account, is it going to appear in my account as
...e forked repo as well. So, if you added members to a team, and they forked from the master repo, always ensure that you either have merged their changes or you have a copy of their changes before you remove them from the team, as the members forked repo gets deleted when he is removed from the team ...
How to install psycopg2 with “pip” on Python?
...
Option 2
Install the prerequsisites for building the psycopg2 package from source:
Debian/Ubuntu
Python 3
sudo apt install libpq-dev python3-dev
You might need to install python3.8-dev or similar for e.g. Python 3.8.
Python 21
sudo apt install libpq-dev python-dev
If that's not enough,...
Call an activity method from a fragment
Trying to call a method in my activity from a fragment. I want the fragment to give the method data and to get the data when the method return. I want to achieve similar to call on a static method, but without the use of static because it create problems in the activity.
...