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When should I use require() and when to use define()?
...unction accepts two optional parameters (a string that represent a module ID and an array of required modules) and one required parameter (a factory method).
The return of the factory method MUST return the implementation for your module (in the same way that the Module Pattern does).
The require...
More elegant “ps aux | grep -v grep”
...ack (I think I should call it that, since the aux / grep authors probably did not think of this scenario.)
– Michael Trouw
Apr 12 '16 at 14:12
2
...
SQL how to increase or decrease one for a int column in one command
.....
To answer the second:
There are several ways to do this. Since you did not specify a database, I will assume MySQL.
INSERT INTO table SET x=1, y=2 ON DUPLICATE KEY UPDATE x=x+1, y=y+2
REPLACE INTO table SET x=1, y=2
They both can handle your question. However, the first syntax allows for...
Callback of .animate() gets called twice jquery
...vin B pointed this out in his answer when the question was first asked. I didn't until four years later when I noticed it was missing, added it, and...then saw Kevin's answer. Please give his answer the love it deserves. I figured as this is the accepted answer, I should leave it in.)
Here's an exa...
How to obtain the query string from the current URL with JavaScript?
...w.location.search.
Solution that work in legacy browsers as well
MDN provide an example (no longer available in the above referenced article) of how to the get value of a single key available in the QueryString. Something like this:
function getQueryStringValue (key) {
return decodeURICompone...
What do Clustered and Non clustered index actually mean?
...the case. SQL Server certainly doesn't guarantee that all data files are laid out in a contiguous physical area of disc and there is zero file system fragmentation. It isn't even true that a clustered index is in order within the data file. The degree to which this isn't the case is the degree of lo...
Exact difference between CharSequence and String in java [duplicate]
...s
There are several classes which implement the CharSequence interface besides String. Among these are
StringBuilder for variable-length character sequences which can be modified
CharBuffer for fixed-length low-level character sequences which can be modified
Any method which accepts a CharSeque...
Why is a div with “display: table-cell;” not affected by margin?
... property is not applicable to display:table-cell elements.
Solution
Consider using the border-spacing property instead.
Note it should be applied to a parent element with a display:table layout and border-collapse:separate.
For example:
HTML
<div class="table">
<div class="row"&g...
How To: Best way to draw table in console app (C#)
...
You could do something like the following:
static int tableWidth = 73;
static void Main(string[] args)
{
Console.Clear();
PrintLine();
PrintRow("Column 1", "Column 2", "Column 3", "Column 4");
PrintLine();
PrintRow("", "", "", "");
PrintRow("", "", "", "");
...
What is the best way to implement “remember me” for a website? [closed]
...the standard session management cookie.
The login cookie contains a series identifier and a token. The series and token are unguessable random numbers from a suitably large space. Both are stored together in a database table, the token is hashed (sha256 is fine).
When a non-logged-in user visits the...