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How to convert a Git shallow clone to a full clone?
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107
EDIT: git fetch --unshallow now is an option (thanks Jack O'Connor).
You can run git fetch --...
Python: using a recursive algorithm as a generator
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117
def getPermutations(string, prefix=""):
if len(string) == 1:
yield prefix + string...
When is an interface with a default method initialized?
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This is a very interesting issue!
It seems like JLS section 12.4.1 ought to cover this definitively. However, the behavior of Oracle JDK and OpenJDK (javac and HotSpot) differs from what's specified here. In particular, the Example 12.4.1-3 from this section covers interface initializ...
How to prevent browser page caching in Rails
...se.headers["Pragma"] = "no-cache"
response.headers["Expires"] = "Mon, 01 Jan 1990 00:00:00 GMT"
end
end
Rails 4 and older versions:
class ApplicationController < ActionController::Base
before_filter :set_cache_headers
private
def set_cache_headers
response.headers["Cache-Con...
Pandas every nth row
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edited Oct 25 '18 at 5:05
user3483203
43.6k88 gold badges3939 silver badges7373 bronze badges
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disable maven download progress indication
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The documentation about batch mode see https://maven.apache.org/ref/3.6.1/maven-embedder/cli.html
Starting with Maven 3.6.1 (released 2019-04-04) you can use --no-transfer-progress will suppress the output of downloading messages at all without suppressing the other output.
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Google Maps API v3: How do I dynamically change the marker icon?
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182
Call the marker.setIcon('newImage.png')... Look here for the docs.
Are you asking about the a...
“Too many values to unpack” Exception
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191
That exception means that you are trying to unpack a tuple, but the tuple has too many values ...
Convert DateTime to String PHP
... use the format method of the DateTime class:
$date = new DateTime('2000-01-01');
$result = $date->format('Y-m-d H:i:s');
If format fails for some reason, it will return FALSE. In some applications, it might make sense to handle the failing case:
if ($result) {
echo $result;
} else { // for...
File content into unix variable with newlines
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188
The assignment does not remove the newline characters, it's actually the echo doing this. You ...