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How to check for an undefined or null variable in JavaScript?
...ou don't care about
0 and false, using if(obj.undefProp) is ok. There's a common idiom based on this fact:
value = obj.prop || defaultValue
which means "if obj has the property prop, assign it to value, otherwise assign the default value defautValue".
Some people consider this behavior confusin...
Difference between string object and string literal [duplicate]
...ring literal notation when possible. It is easier to read and it gives the compiler a chance to optimize your code.
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How to read data when some numbers contain commas as thousand separator?
... csv file where some of the numerical values are expressed as strings with commas as thousand separator, e.g. "1,513" instead of 1513 . What is the simplest way to read the data into R?
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Is it possible to change a UIButtons background color?
...ssibility". for you consideration.
As this is an old answer, I strongly recommend reading comments for troubleshooting
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Reset identity seed after deleting records in SQL Server
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The DBCC CHECKIDENT management command is used to reset identity counter. The command syntax is:
DBCC CHECKIDENT (table_name [, { NORESEED | { RESEED [, new_reseed_value ]}}])
[ WITH NO_INFOMSGS ]
Example:
DBCC CHECKIDENT ('[TestTable]', RESEED, 0);
GO
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How to debug a single thread in Visual Studio?
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Does this prevent the "Step" debugger command from entering other threads? That was a big problem I had. I'm stepping through my thread and all of a sudden I'm in a completely unrelated portion of code. I no longer develop in Visual Studio, so I can't test.
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How to Sort Multi-dimensional Array by Value?
... $retval;
});
If you need to retain key associations, use uasort() - see comparison of array sorting functions in the manual
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How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this docu
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community wiki
6 revs, 5 users 45%Hans Passant
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Converting Select results into Insert script - SQL Server [closed]
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This is no longer free. ssmstoolspack.com/Licensing
– greg
Nov 5 '13 at 22:34
@Gr...
Interface type check with Typescript
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