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How can I create an Asynchronous function in Javascript?
...th a friend yesterday so this answer is perfect! I understand and can identify the async functions and use them in JS properly. But simply why can't we implement custom ones is not clear to me. It's like a black box that we know how make it work (using, say, setInterval) but that we can't even open ...
Save plot to image file instead of displaying it using Matplotlib
...eful tips when using matplotlib.pyplot.savefig. The file format can be specified by the extension:
from matplotlib import pyplot as plt
plt.savefig('foo.png')
plt.savefig('foo.pdf')
Will give a rasterized or vectorized output respectively, both which could be useful. In addition, you'll find tha...
defaultdict of defaultdict?
...ns in our case the value of d[Key_doesnt_exist] will be defaultdict(int).
If you try to access a key from this last defaultdict i.e. d[Key_doesnt_exist][Key_doesnt_exist] it will return 0, which is the return value of the argument of the last defaultdict i.e. int().
...
How to test if a string is JSON or not?
... @Zalaboza 1234, 0, false, and null are all valid JSON values. If you want a predicate that tests if the JSON represents an object you'll need to do a little more.
– Michael Lang
Nov 18 '15 at 23:15
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How to check if a string starts with a specified string? [duplicate]
I'm trying to check if a string starts with http . How can I do this check?
6 Answers
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docker error: /var/run/docker.sock: no such file or directory
... daemon, please set:
export DOCKER_CERT_PATH=
export DOCKER_TLS_VERIFY=1
export DOCKER_HOST=tcp://:2376
After setting these environment variables I was able to run the build without the problem.
Update [2016-04-28] If you are using a the recent versions of docker you can do
eval $(d...
How to convert a string to number in TypeScript?
...orrectly parse simple decimal integer strings like "123", but will behave differently for various other, possibly expected, cases (like "123.45") and corner cases (like null).
Table taken from this answer
share
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Can PNG image transparency be preserved when using PHP's GDlib imagecopyresampled?
...
This solution, in my case GD works fine ONLY if PNG has a "regular" transparency area, like a surrounding transparent area, if it has a complex area, like with inner parts of the image with transparency, it always fails and puts black background, for example this image ...
Add a custom attribute to a Laravel / Eloquent model on load?
...ute()
{
return strtoupper($this->title);
}
}
or, if you have lots of custom accessors, loop through them all and apply them:
class Book extends Eloquent {
protected $table = 'books';
public function toArray()
{
$array = parent::toArray();
fore...
mysql error 1364 Field doesn't have a default values
...Solution-for-MariaDB-Field--xxx--doesn-t-have-a-default-value-5-2720.html
If editing that file doesn't fix the issue, see http://dev.mysql.com/doc/refman/5.6/en/option-files.html for other possible locations of config files.
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