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What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
...no difference in that example.
Using the more verbose method: new Array() does have one extra option in the parameters: if you pass a number to the constructor, you will get an array of that length:
x = new Array(5);
alert(x.length); // 5
To illustrate the different ways to create an array:
var...
JavaScript checking for null vs. undefined and difference between == and ===
... called, and as the value you get when you ask an object for a property it doesn't have. But it can also be explicitly used in all of those situations. (There's a difference between an object not having a property, and having the property with the value undefined; there's a difference between callin...
Optimal settings for exporting SVGs for the web from Illustrator?
...upport SVG Tiny and not the full spec, so go for SVG 1.1.
Note: SVG Tiny does not reduce the file size, it's just a subset of SVG that is adequate for low processing power devices. It will discard gradients, opacity, embedded fonts and filters. Erik Dahlström says: All SVG 1.1 full viewers should...
How to get UTC timestamp in Ruby?
...
Timestamps are relative to the epoch -- doesn't matter which timezone you're in. manzhikov's answer is the better one.
– Ryan Mohr
Aug 31 '12 at 22:19
...
How to select a radio button by default? [duplicate]
...="checked" />
Please note, that the actual value of checked attribute does not actually matter; it's just a convention to assign "checked". Most importantly, strings like "true" or "false" don't have any special meaning.
If you don't aim for XHTML conformance, you can simplify the code to:
&l...
No IUserTokenProvider is registered
...ocol: Request.Url.Scheme);
return View();
}
First try that does not work, No IUserTokenProvider is registered. is gone but the URL created gets Invalid token..
public ActionResult NotWorkingCode()
{
//DOES NOT WORK - When used the error "Invalid token." will always...
Android Min SDK Version vs. Target SDK Version
...r enable newer features that are not available to older applications. This does not mean that you can program different features for different versions of the platform—it simply informs the platform that you have tested against the target version and the platform should not perform any extra work ...
Objective-C parse hex string to integer
...you want to perform strict parsing, you should first check that the string does not begin with 0x (or 0X). NSScanner will accept those prefixes.
– Chris Page
May 2 '19 at 0:37
...
MPICH vs OpenMPI
...FI in the middle).
In the past, a common complaint about MPICH is that it does not support InfiniBand, whereas Open-MPI does. However, MVAPICH and Intel MPI (among others) - both of which are MPICH derivatives - support InfiniBand, so if one is willing to define MPICH as "MPICH and its derivatives...
A std::map that keep track of the order of insertion?
...value to an unique string identifier, and I do look up with the string. It does mostly what I want, except for that it does not keep track of the insertion order. So when I iterate the the map to print out the values, they are sorted according to the string; but I want them to be sorted according to...