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Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
...the fastest way. However, it is even faster if you add the 0 begin index.
myArray.slice(0);
is faster than
myArray.slice();
http://jsperf.com/cloning-arrays/3
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PHP Foreach Pass by Reference: Last Element Duplicating? (Bug?)
...r is complex to understand and may lead to problems. I keep this as one of my favorites to show my students why they should avoid (as long as they can) things "by reference".
– Olivier Pons
Nov 22 '11 at 8:15
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/bin/sh: pushd: not found
... But setting SHELL will not work in this case, see test1 in my answer, stackoverflow.com/questions/5193048/bin-sh-pushd-not-found/….
– hlovdal
Mar 4 '11 at 12:30
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What is ViewModel in MVC?
...is (assuming you are using ASP.NET MVC and the Razor view engine):
@model MyProject.Web.ViewModels.CreateEmployeeViewModel
<table>
<tr>
<td><b>First Name:</b></td>
<td>@Html.TextBoxFor(m => m.FirstName, new { maxlength = "50", s...
select * vs select column
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This is NOT true. One example off the top of my head is when you want only the value of an indexed column in MySQL (for example, just to check for row existence), and you're using MyISAM storage engine, it'll grab the data from the MYI file, which could be in memory, an...
How can I close a buffer without closing the window?
...r people have said, if you mostly use vertical splits, switch sp with vsp. my .vimrc entry looks like this: cnoremap bd bp<bar>vsp<bar>bn<bar>bd
– Connor
Dec 17 '18 at 16:08
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Git ignore sub folders
I have a lot of projects in my .Net solution. I would like to exclude all "bin/Debug" and "bin/Release" folders (and their contents), but still include the "bin" folder itself and any dll's contained therein.
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event.preventDefault() vs. return false
...lt" here. I for one keep confusing them. Is this correct? Propagation = my code (JavaScript event handlers for parent elements). Default = browser code (links, text selection, etc.)
– Bob Stein
Jul 28 '13 at 14:49
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ORA-00979 not a group by expression
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@AaronDigulla That's what MySQL does, and the world didn't end :p
– Chris Baker
Aug 27 '14 at 21:32
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How to implement an STL-style iterator and avoid common pitfalls?
... iterator inherit from const_iterator so as to minimize code duplication.
My post at Writing your own STL Container has a more complete container/iterator prototype.
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