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Convert boolean result into number/integer
... It appears bool === true ? 1 : 0 is the fastest, with a close second from bool | 0.
– Qix - MONICA WAS MISTREATED
Mar 17 '14 at 16:12
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What are static factory methods?
...e(). The constructors are marked private, so they cannot be called except from inside the class, and the factory method is marked as static so that it can be called without first having an object.
There are a few advantages to this pattern. One is that the factory can choose from many subclasses ...
JavaScript variables declare outside or inside loop?
...ar statements should be the first statements in the function body. Quoting from Code Conventions for the JavaScript Programming Language:
JavaScript does not have block scope, so defining variables in blocks can confuse programmers who are experienced with other C family languages. Define all va...
Difference between int[] array and int array[]
...];
is equivalent to:
byte rowvector[], colvector[], matrix[][];
Taken from Java Specification. That means that
int a[],b;
int[] a,b;
are different. I would not recommend either of these multiple declarations. Easiest to read would (probably) be:
int[] a;
int[] b;
...
Android Fragments: When to use hide/show or add/remove/replace?
...ill be in the running state of its lifecycle, but its UI has been detached from the window so it's no longer visible. So you could technically still interact with the fragment and reattach its UI later you need to. If you replace the fragment, the you are actually pulling it out of the container a...
Why are there no ++ and -- operators in Python?
...nd predictability. Back in my C days, I saw more than enough bugs stemming from misunderstandings about the distinction between i++ and ++i...
– Charles Duffy
Jul 17 '13 at 14:54
5...
How to verify a user's password in Devise
...ing to find user by password, but I don't understand how to match password from form and encrypted_password in my db.
4 Ans...
Prevent tabstop on A element (anchor link) in HTML
Is it possible to cancel an <a href="..."> from being tabstopped in any browser? I would like to do this without Javascript.
...
Do a “git export” (like “svn export”)?
...-x -C /somewhere/else
Most of the time that I need to 'export' something from git, I want a compressed archive in any case so I do something like this.
git archive master | bzip2 >source-tree.tar.bz2
ZIP archive:
git archive --format zip --output /full/path/to/zipfile.zip master
git help...
Do I need all three constructors for an Android custom view?
...
If you will add your custom View from xml also like :
<com.mypack.MyView
...
/>
you will need the constructor public MyView(Context context, AttributeSet attrs), otherwise you will get an Exception when Android tries to inflate your Vie...