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Convert an image (selected by path) to base64 string
...ng (MemoryStream m = new MemoryStream())
{
image.Save(m, image.RawFormat);
byte[] imageBytes = m.ToArray();
// Convert byte[] to Base64 String
string base64String = Convert.ToBase64String(imageBytes);
return base64String;
}
}
...
How to display line numbers in 'less' (GNU)
...
The options are: R = better handling of raw color codes in files. S = Scroll long lines off the screen instead of word wrap. #3 = scroll right/left by 3 positions at a time. N = show line numbers. M = Longer prompts. ~ = Instead of displaying empty space after a f...
How to select rows from a DataFrame based on column values?
...ccess variables in the environment by prepending an @.
exclude = ('red', 'orange')
df.query('color not in @exclude')
How to check if a string starts with one of several prefixes?
...rse there is; matching via regular expressions is much more expensive than raw string method calls. Exact figures I cannot give, but this is the general consensus.
– klaar
Mar 21 '16 at 15:47
...
Get the Query Executed in Laravel 3/4
How can I retrieve the raw executed SQL query in Laravel 3/4 using Laravel Query Builder or Eloquent ORM?
20 Answers
...
C++11 features in Visual Studio 2012
...te default arguments
delegating constructors
explicit conversion operators
raw strings
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How do I escape ampersands in XML so they are rendered as entities in HTML?
... It might be a guess; it is correct though. CDATA markers allow raw ampersands to be used.
– Quentin
Aug 25 '09 at 14:40
19
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how to change any data type into a string in python
... It's probably true that the majority of core library objects by raw percentage return the object.__repr__-style angle-bracket representation, but many of the most commonly used ones do not. The rule of thumb for repr is that if it makes sense to return Python code that could be evaluated ...
How can I use Guzzle to send a POST request in JSON?
...
For Guzzle <= 4:
It's a raw post request so putting the JSON in the body solved the problem
$request = $this->client->post(
$url,
[
'content-type' => 'application/json'
],
);
$request->setBody($data); #set body!
$resp...
Changing image size in Markdown
...
You could just use some HTML in your Markdown:
<img src="drawing.jpg" alt="drawing" width="200"/>
Or via style attribute (not supported by GitHub)
<img src="drawing.jpg" alt="drawing" style="width:200px;"/>
Or you could use a custom CSS file as described in this answer...