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ActiveRecord: size vs count
...o go if you are using the data.
Example: Summary of a fully loaded table, titles of displayed data, etc.
size
It checks if the data was loaded (i.e. already in rails) if so, then just count it, otherwise it calls count. (plus the pitfalls, already mentioned in other entries).
def size
loaded? ...
What is the advantage of GCC's __builtin_expect in if else statements?
...re a more portable way of hinting branch prediction to the compiler.
The title of your question made me think of doing it this way:
if ( !x ) {} else foo();
If the compiler assumes that 'true' is more likely, it could optimize for not calling foo().
The problem here is just that you don't, in ...
Is there a way to “autosign” commits in Git with a GPG key?
...t commit -S). Updating the answer slightly to reflect this.
The question title is:
Is there a way to “autosign” commits in Git with a GPG key?
Short answer: yes, but don't do it.
Addressing the typo in the question: git commit -s does not sign the commit. Rather, from the man git-commi...
Modifying a query string without reloading the page
... a photo gallery, and would like to be able to change the query string and title when the photos are browsed.
5 Answers
...
When do you use map vs flatMap in RxJava?
... it with its own Observable and emits it.
Say for example we've a method titleCase(String inputParam) that returns Titled Cased String object of the input param. The return type of this method can be String or Observable<String>.
If the return type of titleCase(..) were to be mere String, ...
How do I pull my project from github?
...ion. This will open up the SSH key page. Click on the New SSH key. In the "Title" field, add a descriptive label for the new key. Paste your key into the "Key" field.
Clone the Repository
Open VS Code (or any IDE/CLI which has command prompt etc.). Go to the directory in which you want to clone, us...
Can local storage ever be considered secure? [closed]
...
As an exploration of this topic, I have a presentation titled "Securing TodoMVC Using the Web Cryptography API" (video, code).
It uses the Web Cryptography API to store the todo list encrypted in localStorage by password protecting the application and using a password derived k...
What is the difference between ui-bootstrap-tpls.min.js and ui-bootstrap.min.js?
...emplate/rating/rating.html"
"template/tabs/tab.html"
"template/tabs/tabset-titles.html"
"template/tabs/tabset.html"
"template/timepicker/timepicker.html"
"template/typeahead/typeahead-match.html"
"template/typeahead/typeahead-popup.html"]);
angular.module('ui.bootstrap.transition'
[])
For example...
Checking for a dirty index or untracked files with Git
...lain and plumbing command is made in the main git manpage (see subsections titled High-level commands (porcelain) and Low-level commands (plumbing).
To find out about uncomitted changes, you will likely need git diff-index (compare index (and maybe tracked bits of working tree) against some other...
catch all unhandled exceptions in ASP.NET Web Api
...5.1. Here's how it will work: https://aspnetwebstack.codeplex.com/wikipage?title=Global%20Error%20Handling
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