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What are the typical reasons Javascript developed on Firefox fails on IE? [closed]

...compliance mode for them to be available. General: Problems with partially loaded documents: It’s a good idea to add your JavaScript in a window.onload or similar event as IE doesn’t support many operations in partially loaded documents. Differing attributes: In CSS, it's elm.style.styleFlo...
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What is InnoDB and MyISAM in MySQL?

...MyISAM InnoDB is a storage engine for MySQL, included as standard in all current binaries distributed by MySQL AB. Its main enhancement over other storage engines available for use with MySQL is ACID-compliant transaction support MyISAM is the default storage engine for the MySQ...
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SQL Joins Vs SQL Subqueries (Performance)?

...explicit JOIN. In my experience IN is a very slow operator, since SQL normally evaluates it as a series of WHERE clauses separated by "OR" (WHERE x=Y OR x=Z OR...). As with ALL THINGS SQL though, your mileage may vary. The speed will depend a lot on indexes (do you have indexes on both ID column...
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Does static constexpr variable inside a function make sense?

...n with static const integers.) The C++ object model (§1.9) requires that all objects other than bit-fields occupy at least one byte of memory and have addresses; furthermore all such objects observable in a program at a given moment must have distinct addresses (paragraph 6). This does not quite r...
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How to keep Maven profiles which are activeByDefault active even if another profile gets activated?

... Because the profile is active automatically when the flag is not there. The profile firstProfile is disabled only if you specify -DskipFirstProfile (eg mvn verify -DskipFirstProfile). – seanf Jun 28 '17 at 4:08 ...
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How do I install a NuGet package .nupkg file locally?

I have some .nupkg files from a C# book. How can I install them? 8 Answers 8 ...
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Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC?

... dispatch_once() is absolutely synchronous. Not all GCD methods do things asynchronously (case in point, dispatch_sync() is synchronous). The use of dispatch_once() replaces the following idiom: + (MyClass *)sharedInstance { static MyClass *sharedInstance; @synchr...
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Application Loader stuck at “Authenticating with the iTunes store” when uploading an iOS app

...perly communicate error messages. Stuck on authenticating is not useful at all. – Domen Grabec May 5 '17 at 17:22 ...
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What blocks Ruby, Python to get Javascript V8 speed? [closed]

...ineers working on it, that have decades of experience (I'm talking individually – collectively it's more like centuries) in creating high-performance execution engines for dynamic OO languages. They are basically the same people who also created the Sun HotSpot JVM (among many others). Lars Bak,...
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What's the fastest way to loop through an array in JavaScript?

...o Currently, the fastest form of loop (and in my opinion the most syntactically obvious). A standard for-loop with length caching var i = 0, len = myArray.length; while (i < len) { // your code i++ } I would say, this is definitely a case where I applaud JavaScript en...