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Looping through a hash, or using an array in PowerShell
... how:
$hash = @{
a = 1
b = 2
c = 3
}
$hash.Keys | % { "key = $_ , value = " + $hash.Item($_) }
Output:
key = c , value = 3
key = a , value = 1
key = b , value = 2
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How to convert a string or integer to binary in Ruby?
...
You have Integer#to_s(base) and String#to_i(base) available to you.
Integer#to_s(base) converts a decimal number to a string representing the number in the base specified:
9.to_s(2) #=> "1001"
while the reverse is obtained with String#to...
php $_POST array empty upon form submission
...ed to share it as it cost me much time.
When using JSON content-type the $_POST array will not populate (only with multi-part forms I believe)
Here is what did work to correct the issue:
$rest_json = file_get_contents("php://input");
$_POST = json_decode($rest_json, true);
hope this helps someo...
How to Apply Gradient to background view of iOS Swift App
...rray <AnyObject> = [colorTop, colorBottom]
– JP_
Sep 9 '14 at 6:46
7
for swift 1.0 the synt...
Where are static variables stored in C and C++?
... 00 00 00 mov 0x0(%rip),%eax # a <f+0xa>
6: R_X86_64_PC32 .data-0x4
and the .data-0x4 says that it will go to the first byte of the .data segment.
The -0x4 is there because we are using RIP relative addressing, thus the %rip in the instruction and R_X86_64_PC32.
...
How do I run a Ruby file in a Rails environment?
...ou don't need to modify your script.
http://guides.rubyonrails.org/command_line.html#rails-runner
Just say rails runner script.rb
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How do I test a file upload in rails?
...ing to make it available on SO.
The rails framework has a function fixture_file_upload (Rails 2 Rails 3, Rails 5), which will search your fixtures directory for the file specified and will make it available as a test file for the controller in functional testing. To use it:
1) Put your file to be ...
Python Pandas merge only certain columns
...
Hmmm ... I tried using this to merge column 'Unique_External_Users' from df2 to df1 but got an error ... "None of [Index(['U', 'n', 'i', 'q', 'u', 'e', '', 'E', 'x', 't', 'e', 'r', 'n', 'a',\n 'l', '', 'U', 's', 'e', 'r', 's'],\n dtype='object')] are in the [column...
Sorting a tab delimited file
... Ruby. Here's some example code:
#!/usr/bin/perl -w
use strict;
my $sort_field = 2;
my $split_regex = qr{\s+};
my @data;
push @data, "7 8\t 9";
push @data, "4 5\t 6";
push @data, "1 2\t 3";
my @sorted_data =
map { $_->[1] }
sort { $a->[0] <=> $b->[0] }
map { [ ( sp...
Wait for page load in Selenium
...ere
You can expect to show some element. something like in C#:
WebDriver _driver = new WebDriver();
WebDriverWait _wait = new WebDriverWait(_driver, new TimeSpan(0, 1, 0));
_wait.Until(d => d.FindElement(By.Id("Id_Your_UIElement"));
...