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Repeat String - Javascript

...e summarized as avoiding adding short strings to long strings, or in other words, trying to concatenate strings together that are of equal or nearly equal length. For the old computational cost we found a formula N(N+1)/2. Is there a formula for the new cost? Yes, but it's complicated. The importan...
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Logical operators for boolean indexing in Pandas

... and Pandas objects such as Series do not have a boolean value -- in other words, they raise ValueError: The truth value of an array is ambiguous. Use a.empty, a.any() or a.all(). when used as a boolean value. That's because its unclear when it should be True or False. Some users might assume th...
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What is the best way to auto-generate INSERT statements for a SQL Server table?

...ements for 'titles' table for only those titles which contain the word 'Computer' in them: NOTE: Do not complicate the FROM or WHERE clause here. It's assumed that you are good with T-SQL if you are using this parameter EXEC sp_generate_inserts 'titles', @from = "from title...
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Schema for a multilanguage database

...01 de-CH-1996 (there was an orthography reform in 1996...) Try finding a word in a dictionary if it is misspelled; this becomes very important in applications dealing with legal and public service portals. More importantly, there are regions that are changing from cyrillic to latin alphabets, whic...
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Fastest way to iterate over all the chars in a String

... string size The tests are shuffled into random order each time. In other words, the tests are done in random order every time they are done, over 1000 times over. The entire test suite is done forwards, and backwards, to show the effect of JVM warmup on optimization and times. The entire suite i...
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What is TypeScript and why would I use it in place of JavaScript? [closed]

...alysis whether or not your code can safely use a variable or not. In other words when you check a variable is undefined through for example an if statement the TypeScript compiler will infer that the type in that branch of your code's control flow is not anymore nullable and therefore can safely be ...
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Polymorphism in C++

...becomes possible to use operations specific to those classes of types. The word "classes" here can be interpreted in the OOP sense, but really just refers to (usually named) sets of types that share certain operations. So parametric polymorphism is usually taken (at least by default) to imply uncon...
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What is the difference between quiet NaN and signaling NaN?

...ed int new; excepts &= FE_ALL_EXCEPT; /* Get the current control word of the x87 FPU. */ __asm__ ("fstcw %0" : "=m" (*&new_exc)); old_exc = (~new_exc) & FE_ALL_EXCEPT; new_exc &= ~excepts; __asm__ ("fldcw %0" : : "m" (*&new_exc)); /* And now the same for the S...
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Where and why do I have to put the “template” and “typename” keywords?

...certain names are types and that certain names aren't. The "typename" keyword The answer is: We decide how the compiler should parse this. If t::x is a dependent name, then we need to prefix it by typename to tell the compiler to parse it in a certain way. The Standard says at (14.6/2): A nam...
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Is it possible to apply CSS to half of a character?

... This is very cool. It's worth noting that this technique breaks word-wrapping, white-space, and character-spacing CSS. – Andrew Ensley Dec 31 '18 at 17:52 ...