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How to create a loop in bash that is waiting for a webserver to respond?
...of the server). Leaving out --head wouldn't change anything, but you could if you want to exercise some logic on the response contents (like a status.html).
– Thomas Ferris Nicolaisen
Feb 5 '17 at 22:30
...
What is sr-only in Bootstrap 3?
...of the rendered page.
Screen readers will have trouble with your forms if you don't include a label for every input. For these inline forms, you can hide the labels using the .sr-only class.
Here is an example styling used:
.sr-only {
position: absolute;
width: 1px;
height: 1px;
paddi...
Checking for empty arrays: count vs empty
This question on ' How to tell if a PHP array is empty ' had me thinking of this question
12 Answers
...
npm command to uninstall or prune unused packages in Node.js
...e.json.
From npm help prune:
This command removes "extraneous" packages. If a package name is provided, then only packages matching one of the supplied names are removed.
Extraneous packages are packages that are not listed on the parent package's dependencies list.
If the --production flag is spe...
optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?
...g syntax in my partial templates to set default values for local variables if a value wasn't explicitly defined in the :locals hash when rendering the partial --
...
How can I recover the return value of a function passed to multiprocessing.Process?
... print str(procnum) + ' represent!'
return_dict[procnum] = procnum
if __name__ == '__main__':
manager = multiprocessing.Manager()
return_dict = manager.dict()
jobs = []
for i in range(5):
p = multiprocessing.Process(target=worker, args=(i,return_dict))
jobs.ap...
Get position of UIView in respect to its superview's superview
...ect frame = [firstView convertRect:buttons.frame fromView:secondView];
Swift
let frame = firstView.convert(buttons.frame, from:secondView)
Documentation reference:
https://developer.apple.com/documentation/uikit/uiview/1622498-convert
...
Show pending migrations in rails
...
How do you read the output of this command? If the status of a row is "down", does that mean it's a pending migration?
– Dennis
Feb 13 '15 at 15:00
1...
How to determine if a record is just created or updated in after_save
The #new_record? function determines if a record has been saved. But it is always false in the after_save hook. Is there a way to determine whether the record is a newly created record or an old one from update?
...
How to check whether a string contains a substring in Ruby
...
You can use the include? method:
my_string = "abcdefg"
if my_string.include? "cde"
puts "String includes 'cde'"
end
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