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mkdir's “-p” option
So this doesn't seem like a terribly complicated question I have, but it's one I can't find the answer to. I'm confused about what the -p option does in Unix. I used it for a lab assignment while creating a subdirectory and then another subdirectory within that one. It looked like this:
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How to submit a form using PhantomJS
...ps = [
function() {
//Load Login Page
page.open("https://website.com/theformpage/");
},
function() {
//Enter Credentials
page.evaluate(function() {
var arr = document.getElementsByClassName("login-form");
var i;
for (i=0; i < arr.length; i++) {
i...
Run a callback only if an attribute has changed in Rails
...nge_to_status_id?
private
def do_something
# ...
end
end
The commit that changed ActiveRecord::Dirty is here: https://github.com/rails/rails/commit/16ae3db5a5c6a08383b974ae6c96faac5b4a3c81
Here is a blog post on these changes: https://www.ombulabs.com/blog/rails/upgrades/active-record...
How to scroll the window using JQuery $.scrollTo() function
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322
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Sometimes adding a WCF Service Reference generates an empty reference.cs
...et an average of 50 points per week from this question even 6 years later. Come on MS, fix this. At least give the developers some feedback when this goes poorly instead of having them stare at a blank file.
– Anderson Imes
May 18 '15 at 21:02
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How can I print a circular structure in a JSON-like format?
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729
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How can I check if a background image is loaded?
... javascript:void($('<img/>').attr('src', 'http://farm6.static.flickr.com/5049/5220175127_5693faf952.jpg').load(function() { $('html').css('background-image', 'url(http://farm6.static.flickr.com/5049/5220175127_5693faf952.jpg)'); })) and check HTTP requests in Firebug. If I have opened flicker ...
HTML if image is not found
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Combined with a useful alt tag this is a great way to solve the problem!
– mlibby
Nov 5 '13 at 21:33
2
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What is a reasonable order of Java modifiers (abstract, final, public, static, etc.)?
... specified, e.g. here for field modifiers.
Update: I replaced "specified/recommended" with "customary" to make this an acceptable answer. Take this into account if you read the comments ;-) (thanks @EJP to make this clear) - Nevertheless I would recommend to use the customary order.
Google also reco...
How to frame two for loops in list comprehension python
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