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The most accurate way to check JS object's type?
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The JavaScript specification gives exactly one proper way to determine the class of an object:
Object.prototype.toString.call(t);
http://bonsaiden.github.com/JavaScript-Garden/#types
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Understanding the difference between Object.create() and new SomeFunction()
...nce of an object with new SomeFunction() , and when you would want to use one over the other.
10 Answers
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Why use apparently meaningless do-while and if-else statements in macros?
...nt is to use up the semicolon in contexts where a dangling semicolon is erroneous. Of course, it could (and probably should) be argued at this point that it would be better to declare BAR as an actual function, not a macro.
In summary, the do ... while is there to work around the shortcomings of t...
Is there a perfect algorithm for chess? [closed]
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Scripted to win is one thing. Exhaustively enumerated is a different thing. Either way, the information is perfect -- everything is known -- the game is deterministic by definition.
– S.Lott
Jan 3 '09 at...
Opacity of div's background without affecting contained element in IE 8?
...c);
}
Hope that helps.
[EDIT]
For what it's worth, as others have mentioned, you can use IE's filter style, with the gradient keyword. The CSS3Pie solution does actually use this same technique behind the scenes, but removes the need for you to mess around directly with IE's filters, so your sty...
What is the difference between background and background-color
...es the background-color, using the background shorthand you could also add one or more values without repeating any other background-* property more than once.
Which one to choose is essentially up to you, but it could also depend on specific conditions of your style declarations (e.g if you need t...
Entity Framework 5 Updating a Record
...cord within Entity Framework 5 in an ASP.NET MVC3 environment, but so far none of them tick all of the boxes I need. I'll explain why.
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image.onload event and browser cache
...oad? You had it right in the first code example, but messed up the second one. The second one will not work properly in some versions of IE.
– jfriend00
Sep 10 '12 at 16:42
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How do you remove duplicates from a list whilst preserving order?
...me alternatives: http://www.peterbe.com/plog/uniqifiers-benchmark
Fastest one:
def f7(seq):
seen = set()
seen_add = seen.add
return [x for x in seq if not (x in seen or seen_add(x))]
Why assign seen.add to seen_add instead of just calling seen.add? Python is a dynamic language, and r...
Which iOS app version/build number(s) MUST be incremented upon App Store release?
...e many builds for any particular release of your App, you only need to use one new Version Number for each new release of your App.
You cannot re-use Version Numbers.
For every new build you submit, you will need to invent a new Build Number whose value is greater than the last Build Number you ...