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Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
...e column type is str? I want to only keep list column types. I have tried test = df.drop(df[df['col1'].dtype == str].index) but I get the error KeyError: False I have also tried df.drop(df[df.col1.dtype == str].index) and df.drop(df[type(df.cleaned_norm_email) == str].index) but nothing seems to w...
Maven command to list lifecycle phases along with bound goals?
... | default-compile | compile
maven-resources-plugin | process-test-resources | default-testResources | testResources
maven-compiler-plugin | test-compile | default-testCompile | testCompile
maven-surefire-plugin | test | default-test | test
mav...
Laravel Controller Subfolder routing
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For Laravel 5.3 above:
php artisan make:controller test/TestController
This will create the test folder if it does not exist, then creates TestController inside.
TestController will look like this:
<?php
namespace App\Http\Controllers\test;
use Illuminate\Http\Reques...
PHP's array_map including keys
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Not with array_map, as it doesn't handle keys.
array_walk does:
$test_array = array("first_key" => "first_value",
"second_key" => "second_value");
array_walk($test_array, function(&$a, $b) { $a = "$b loves $a"; });
var_dump($test_array);
// array(2) {
// ["...
How do I tell if a regular file does not exist in Bash?
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The test command ([ here) has a "not" logical operator which is the exclamation point (similar to many other languages). Try this:
if [ ! -f /tmp/foo.txt ]; then
echo "File not found!"
fi
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The most accurate way to check JS object's type?
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That test on jsPerf isn't quite accurate. Those tests are not equal (testing for the same thing). E.g., typeof [] returns "object", typeof {} also returns "object", even though one is an object Array and the other is an object Ob...
(How) can I count the items in an enum?
...ax()
specialization (possibly constexpr if you use c++11). Then, in your test code provide any static assertions to maintain the constraints that std::numeric_limits::max() = last_item.
share
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im...
Java: when to use static methods
... (filesystem, database, etc) this type of static can make it horrendous to test the consuming methods. I personally try to keep statics in the realm of "utility."
– Seth M.
Apr 7 '14 at 13:50
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Ignoring SSL certificate in Apache HttpClient 4.3
...cketFactory.ALLOW_ALL_HOSTNAME_VERIFIER on purpose: The point was to allow testing with self signed certificates so you don't have to acquire a proper certificate from a certification authority. You can easily create a self-signed certificate with the correct host name, so do that instead of adding ...
RSpec: What is the difference between a feature and a request spec?
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The conceptual difference is that you're usually testing a user story, and all interaction should be driven via the user interface. That's where Capybara comes in. A request spec is still testing the behavior of your application and doesn't have the expectation of readabi...