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Java String remove all non numeric characters
Trying to remove all letters and characters that are not 0-9 and a period. I'm using Character.isDigit() but it also removes decimal, how can I also keep the decimal?
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Is there a “default” MIME type?
...eally add anything over this, except to confuse clients who don't support random unofficial MIME types. Ditto for application/binary; it's just a non-standard way of restating "octet-stream".
This is the answer to "What can I put in the Content-Type: header if I can't find an existing content type...
How can I change the current URL?
...tely, this is only supported in very modern browsers, like Chrome, Safari, and the Firefox 4 beta.
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How to get config parameters in Symfony2 Twig Templates
...define in your config file:
twig:
globals:
version: "0.1.0"
And access it in your template with
{{ version }}
Otherwise it must be a way with an Twig extension to expose your parameters.
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matplotlib: colorbars and its text labels
... scheme
cMap = ListedColormap(['white', 'green', 'blue','red'])
#data
np.random.seed(42)
data = np.random.rand(4, 4)
fig, ax = plt.subplots()
heatmap = ax.pcolor(data, cmap=cMap)
#legend
cbar = plt.colorbar(heatmap)
cbar.ax.get_yaxis().set_ticks([])
for j, lab in enumerate(['$0$','$1$','$2$','$&g...
Select Pandas rows based on list index
...I index with data frames I always use the .ix() method. Its so much easier and more flexible...
UPDATE
This is no longer the accepted method for indexing. The ix method is deprecated. Use .iloc for integer based indexing and .loc for label based indexing.
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Ruby/Rails: converting a Date to a UNIX timestamp
...ime offset does not work. For me I found using Time.utc() worked correctly and the code involves less steps:
> Time.utc(2016, 12, 25).to_i
=> 1482624000 # correct
vs
> Date.new(2016, 12, 25).to_time.utc.to_i
=> 1482584400 # incorrect
Here is what happens when you call utc after u...
PHP - Check if two arrays are equal
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$arraysAreEqual = ($a == $b); // TRUE if $a and $b have the same key/value pairs.
$arraysAreEqual = ($a === $b); // TRUE if $a and $b have the same key/value pairs in the same order and of the same types.
See Array Operators.
EDIT
The inequality operator is != whil...
How to use HTML to print header and footer on every printed page of a document?
Is it possible to print HTML pages with custom headers and footers on each printed page?
17 Answers
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How do I access the host machine itself from the iPhone simulator
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Expanding on jaminguy's answer, MAC OSX also has a built in Apache server. Just do a quick google search.....
– Sid
May 20 '11 at 23:00
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