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Get second child using jQuery
...jsperf.com/second-child-selector
The $(t).first().next() method is the fastest here, by far.
But, on the other hand, if you take the <tr> node and find the <td> children and and run the same test, the results won't be the same.
Hope it helps. :)
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SQL to determine minimum sequential days of access?
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Truncate the CreateionDate down to days in all these tests (on the right side only or you kill SARG) using DATEADD(dd, DATEDIFF(dd, 0, CreationDate), 0) This works by subtracting the supplied date from zero--which Microsoft SQL Server interprets as 1900-01-01 00:00:00 and gives...
What's the difference between the Dependency Injection and Service Locator patterns?
...One important result of this is that the DI example is much easier to unit test -- because you can pass it mock implementations of its dependent objects. You could combine the two -- and inject the service locator (or a factory), if you wanted.
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Find rows with multiple duplicate fields with Active Record, Rails & Postgres
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Tested & Working Version
User.select(:first,:email).group(:first,:email).having("count(*) > 1")
Also, this is a little unrelated but handy. If you want to see how times each combination was found, put .size at the e...
How do I deep copy a DateTime object?
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I haven't tested it actually, but it is mentioned at php.net that this is only aviable for PHP 5.3 and greater.
– hugo der hungrige
Feb 1 '13 at 1:02
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Java array reflection: isArray vs. instanceof
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In most cases, you should use the instanceof operator to test whether an object is an array.
Generally, you test an object's type before downcasting to a particular type which is known at compile time. For example, perhaps you wrote some code that can work with a Integer[] or an i...
Is the primary key automatically indexed in MySQL?
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I guess this is the answer
mysql> create table test(id int primary key, s varchar(20));
Query OK, 0 rows affected (0.06 sec)
mysql> show indexes from test \G
*************************** 1. row ***************************
Table: test
Non_unique: 0
Key_n...
Regular Expression to find a string included between two characters while EXCLUDING the delimiters
...rk if the substring also contains the delimiters? For example in This is a test string [more [or] less] would this return more [or] less ?
– gnzlbg
Feb 22 '13 at 18:49
1
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How to export JavaScript array info to csv (on client side)?
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Based on the answers above I created this function that I have tested on IE 11, Chrome 36 and Firefox 29
function exportToCsv(filename, rows) {
var processRow = function (row) {
var finalVal = '';
for (var j = 0; j < row.length; j++) {
var innerValue ...
Is it a good practice to use try-except-else in Python?
...ns inherent in some of the "look-before-you-leap" constructs. For example, testing os.path.exists results in information that may be out-of-date by the time you use it. Likewise, Queue.full returns information that may be stale. The try-except-else style will produce more reliable code in these ca...