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Finding out whether a string is numeric or not

... @KMGorbunov I don't think that NSCharacterSet is actually storing a backing set that contains every single character in the set. I suspect invertedSet is returning a class that wraps the set it was created form, and returns the opposite value for all queries. But I don't know f...
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How can I insert values into a table, using a subquery with more than one result?

... INSERT INTO iden_course (Cse_M_ID,Cse_M_Name,Cse_M_ShName, Cse_M_TotSem,Cse_M_CreatedDate) VALUES ('ID','BJf', 'BJfg' , '4',Now()) select max(Cse_M_ID) as ID from iden_course how to add in this query – SANDEEP ...
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warning: incompatible implicit declaration of built-in function ‘xyz’

...an page says this function is a GNU extension and synopsis shows: #define _GNU_SOURCE #include <string.h> When #define is added to my source before the #include, declarations for the GNU extensions are made visible and warnings disappear. ...
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Why use static_cast(x) instead of (int)x?

...e main reason is that classic C casts make no distinction between what we call static_cast<>(), reinterpret_cast<>(), const_cast<>(), and dynamic_cast<>(). These four things are completely different. A static_cast<>() is usually safe. There is a valid conversion in the...
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Setting default value for TypeScript object passed as argument

... Actually, there appears to now be a simple way. The following code works in TypeScript 1.5: function sayName({ first, last = 'Smith' }: {first: string; last?: string }): void { const name = first + ' ' + last; console.log(na...
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Reusable library to get human readable version of file size?

... Addressing the above "too small a task to require a library" issue by a straightforward implementation: def sizeof_fmt(num, suffix='B'): for unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']: if abs(num) < 1024.0: return "%3.1f...
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Using jquery to get element's position relative to viewport

... Look into the Dimensions plugin, specifically scrollTop()/scrollLeft(). Information can be found at http://api.jquery.com/scrollTop. share | improve this answer ...
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Mockito + PowerMock LinkageError while mocking system class

...nd any way to do this. We have hundreds of tests ... i can not adjust them all. – Frederic Leitenberger Jul 11 '17 at 18:01 1 ...
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Splitting String with delimiter

... answered May 8 '13 at 21:50 tim_yatestim_yates 149k2222 gold badges302302 silver badges311311 bronze badges ...
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SQL Switch/Case in 'where' clause

...statement exits after a condition is met - but the OR syntax will evaluate all the possibilities – tember May 12 '15 at 18:27 1 ...