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Command to get time in milliseconds
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%xN: nice one for the field width!
– fduff
Jan 22 '14 at 12:47
1
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Is std::unique_ptr required to know the full definition of T?
...laces is very useful! This is where shared_ptr and unique_ptr help. Use of one of these smart pointers will let you get away with an incomplete type, except where it is necessary to have a complete type. And most importantly, when it is necessary to have a complete type, you get a compile-time error...
What is JavaScript's highest integer value that a number can go to without losing precision?
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253-1, or
+/- 9,007,199,254,740,991, or
nine quadrillion seven trillion one hundred ninety-nine billion two hundred fifty-four million seven hundred forty thousand nine hundred ninety-one
To put this in perspective: one quadrillion bytes is a petabyte (or one thousand terabytes).
"Safe" in th...
Java Hashmap: How to get key from value?
...at the time of inserting the value into the map. This is easier said than done.
Once you can ensure that, use the entrySet() method to obtain the set of entries (mappings) in the Map. Once you have obtained the set whose type is Map.Entry, iterate through the entries, comparing the stored value aga...
Spring Boot: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFa
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I'm doing all the tutorials into one Eclipse project ending up with one giant pom. I put it in a seperate project using the pom from the tutorial and now it works perfectly. Thanks for your help! What if I want a scheduler in a Spring webapp using this API?...
What are enums and why are they useful?
...ys use enums when a variable (especially a method parameter) can only take one out of a small set of possible values. Examples would be things like type constants (contract status: "permanent", "temp", "apprentice"), or flags ("execute now", "defer execution").
If you use enums instead of integers ...
What is a database transaction?
Can someone provide a straightforward (but not simpler than possible) explanation of a transaction as applied to computing (even if copied from Wikipedia)?
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How can I replace a newline (\n) using sed?
...ated label $!ba ($! means not to do it on the last line as there should be one final newline).
Finally the substitution replaces every newline with a space on the pattern space (which is the whole file).
Here is cross-platform compatible syntax which works with BSD and OS X's sed (as per @Benjie c...
Difference between Python's Generators and Iterators
..., but not vice versa. A generator is built by calling a function that has one or more yield expressions (yield statements, in Python 2.5 and earlier), and is an object that meets the previous paragraph's definition of an iterator.
You may want to use a custom iterator, rather than a generator, when...
How can we make xkcd style graphs?
...anks for the great package. I am having trouble with installing the fonts! One correction in the intro file, (sec-2.1, line 5, .tff -> .ttf). Another one still pending!!
– Shambho
Apr 22 '14 at 23:45
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