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how to log in to mysql and query the database from linux terminal
... get mysql prompt in linux terminal?
mysql -u root -p
At the Enter password: prompt, well, enter root's password :)
You can find further reference by typing mysql --help or at the online manual.
2. How I stop the mysql server from linux terminal?
It depends. Red Hat based distros have the serv...
How to check whether an object is a date?
...ia
typeof date.getMonth === 'function'
you can use the instanceof operator, i.e. But it will return true for invalid dates too, e.g. new Date('random_string') is also instance of Date
date instanceof Date
This will fail if objects are passed across frame boundaries.
A work-around for this is ...
.c vs .cc vs. .cpp vs .hpp vs .h vs .cxx [duplicate]
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Historically, the first extensions used for C++ were .c and .h, exactly like for C. This caused practical problems, especially the .c which didn't allow build systems to easily differentiate C++ and C files.
Unix, on which C++ ...
Is element block level or inline level?
I've read somewhere that <img> element behaves like both. If correct, could someone please explain with examples?
6...
Set line spacing
How can I set line spacing with CSS, like we can set it in MS Word?
9 Answers
9
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Why are hexadecimal numbers prefixed with 0x?
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Short story: The 0 tells the parser it's dealing with a constant (and not an identifier/reserved word). Something is still needed to specify the number base: the x is an arbitrary choice.
Long story: In the 60's, the prevalent...
Why is i++ not atomic?
... because atomicity is a special requirement which is not present in the majority of the uses of i++. That requirement has a significant overhead: there is a large cost in making an increment operation atomic; it involves synchronization at both the software and hardware levels that need not be prese...
Cross cutting concern example
What is a good example of a cross-cutting concern ? The medical record example on the wikipedia page seems incomplete to me.
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What is the etymology of 'slug'? [closed]
Is slug a completely arbitrary word? Or does it stand for something? I used the word in a conversation with someone and when they asked me why it's called that I realized I didn't know.
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Performance of static methods vs instance methods
My question is relating to the performance characteristics of static methods vs instance methods and their scalability. Assume for this scenario that all class definitions are in a single assembly and that multiple discrete pointer types are required.
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