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What does @media screen and (max-width: 1024px) mean in CSS?
...It prevents the CSS inside it from being run unless the browser passes the tests it contains.
The tests in this media query are:
@media screen — The browser identifies itself as being in the “screen” category. This roughly means the browser considers itself desktop-class — as opposed to e...
AngularJS ng-repeat handle empty list case
..."events.length">No events</li>
See example.
For object you can test Object.keys.
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bundler vs RVM vs gems vs RubyGems vs gemsets vs system ruby [closed]
...s are to Java. Inside a gem file, you find Ruby code (.rb files), but also tests, and a special file giving information on the gem itself, such as its name, dependencies and version (gemspec). Any Ruby project can define the gems it needs via a Gemfile that just need to declare dependencies. Rubygem...
What is the 'dynamic' type in C# 4.0 used for?
...
object missing = System.Reflection.Missing.Value;
object fileName = "C:\\test.docx";
object readOnly = true;
wordApplication.Documents.Open(ref fileName, ref missing, ref readOnly,
ref missing, ref missing, ref missing, ref missing, ref missing,
ref missing, ref missing, ref missing, ref m...
How to remove folders with a certain name
...according to your wishes, as follows:
find . -name a -exec rm -rf {} \;
Test it first using ls to list:
find . -name a -exec ls {} \;
To ensure this only removes directories and not plain files, use the "-type d" arg (as suggested in the comments):
find . -name a -type d -exec rm -rf {} \;
...
Creating a BLOB from a Base64 string in JavaScript
...the byteCharacters in smaller slices, rather than all at once. In my rough testing 512 bytes seems to be a good slice size. This gives us the following function.
const b64toBlob = (b64Data, contentType='', sliceSize=512) => {
const byteCharacters = atob(b64Data);
const byteArrays = [];
fo...
How does HTTP file upload work?
...each one.
You can produce examples using:
nc -l or an ECHO server: HTTP test server accepting GET/POST requests
an user agent like a browser or cURL
Save the form to a minimal .html file:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<title>u...
Base 64 encode and decode example code
...ByteArray(charset("UTF-8")), Base64.DEFAULT)
}
Example:
Log.d("LOGIN", "TEST")
Log.d("LOGIN", "TEST".encode())
Log.d("LOGIN", "TEST".encode().decode())
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PHP server on local machine?
I'm trying to build a PHP site and I'm wanting to test my PHP files without uploading them to my host. Basically testing them on my own machine before I upload them. How do I do that?
...
Opening a folder in explorer and selecting a file
...
// suppose that we have a test.txt at E:\
string filePath = @"E:\test.txt";
if (!File.Exists(filePath))
{
return;
}
// combine the arguments together
// it doesn't matter if there is a space after ','
string argument = "/select, \"" + filePath +"...