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What are the mathematical/computational principles behind this game?
My kids have this fun game called Spot It! The game constraints (as best I can describe) are:
9 Answers
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FFMPEG (libx264) “height not divisible by 2”
...vcodec libx264 -y -an video.mp4 -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2"
Basically, .h264 needs even dimensions so this filter will:
Divide the original height and width by 2
Round it up to the nearest pixel
Multiply it by 2 again, thus making it an even number
Add black padding pixels up to this num...
JS: Check if date is less than 1 hour ago?
...terchange, yes. If n hours ago is the same as -n hours in the future, then all future dates are less than one hour ago.
– Mike Samuel
Nov 20 '18 at 0:03
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Selenium WebDriver: Wait for complex page with JavaScript to load
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If anyone actually knew a general and always-applicable answer, it would have been implemented everywhere ages ago and would make our lives SO much easier.
There are many things you can do, but every single one of them has a problem:
As...
extract part of a string using bash/cut/split
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MYVAR="users/joebloggs/domain.com"
Remove the path leaving file name (all characters up to a slash):
echo ${MYVAR##*/}
domain.com
Remove the file name, leaving the path (delete shortest match after last /):
echo ${MYVAR%/*}
users/joebloggs
Get just the file extension (remove all before la...
How should I use try-with-resources with JDBC?
...he end of the resource list. The advantage of using two try blocks is that all of your code is present up front so you don't have to refer to a separate method:
public List<User> getUser(int userId) {
String sql = "SELECT id, username FROM users WHERE id = ?";
List<User> users =...
Create Generic method constraining T to an Enum
... You don't gain much by including the other interfaces because almost all of the built-in value types implement all of those interfaces. This is especially true for constraints on a generic extension method, which is extremely handy for operating on enums, except for the fact that those extensi...
What's the difference between “Write-Host”, “Write-Output”, or “[console]::WriteLine”?
... but not necessarily want to display it on screen. The pipeline will eventually write it to out-default if nothing else uses it first.
Write-Host should be used when you want to do the opposite.
[console]::WriteLine is essentially what Write-Host is doing behind the scenes.
Run this demonstratio...
How can I use jQuery in Greasemonkey scripts in Google Chrome?
...on Google Chrome.
// ==/UserScript==
// a function that loads jQuery and calls a callback function when jQuery has finished loading
function addJQuery(callback) {
var script = document.createElement("script");
script.setAttribute("src", "//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js");...
Why should a function have only one exit-point? [closed]
...p massively indented to the right, and it becomes very difficult to follow all the nested scopes.
Another is that you can check preconditions and exit early at the start of a method, so that you know in the body of the method that certain conditions are true, without the entire body of the method b...