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Convert a string to int using sql query
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Just a word: IsNumeric() can produce some perverse results. It will return TRUE for the string "-.", which will still cause an error when you try to cast it to a number.
– Curt
Jul 25 '13 at ...
Clone Object without reference javascript [duplicate]
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"copy" is a reserved word.
– Chris Scott
Jun 11 '17 at 3:08
1
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data.frame rows to a list
...rows, meaning each row would correspond to its own list elements. In other words, I would like a list that is as long as the data.frame has rows.
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Safe characters for friendly url [closed]
..."'" / "(" / ")" / "*" / "+" / "," / ";" / "="
":" / "@"
Or in other words: You may use any (non-control-) character from the ASCII table, except /, ?, #, [ and ].
This understanding is backed by RFC1738 - Uniform Resource Locators (URL).
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Immediate function invocation syntax
...ration which is a syntax error.
Function expressions cannot start with the word function.
When assigning the function expression to a variable, the function itself is not returned, the return value of the function is returned, hence the parens evaluate what's inside them and produce a value. when th...
What is N-Tier architecture?
...vice tier - integration/data tier. Do you know if these are just different words for the same thing as the architecture shown above or something different? As far as my knowledge goes, they seem the same but I would like to make sure.
– KayleighArianna
Aug 16 ...
What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
...stantiated as if by a new expression with an empty argument list. In other words, this is here actually equivalent to a new Demo() and returns a new instance of Demo.
And running this Demo class thus prints the following output:
Hi!
The big difference with the traditional new is that newInstance...
Recursive lambda functions in C++11
...etween the auto version and the fully specified type version. The auto keyword infers its type from whatever it's initialized with, but what you're initializing it with needs to know what its type is (in this case, the lambda closure needs to know the types it's capturing). Something of a chicken-...
How do you switch pages in Xamarin.Forms?
...dels directory and Pages(Views) should be in the Views directory. In other words ViewModels should live in [MyApp].ViewModels namespace and Pages(Views) in [MyApp].Views namespace. In addition to that we should agree that WelcomeView(Page) should have a WelcomeViewModel and etc. Here is a code examp...
Virtual member call in a constructor
...his is more clear than the above answer. A sample code is worth a thousand words.
– Novice in.NET
Jun 28 '18 at 0:05
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