... Consider adding the index to preallocate memory (see my answer) – FooBar Jul 23 '14 at 14:22 34 ...

...he typeof operator returns 'object' for a value that is null. This was actually an error in the original JavaScript implementation that was then copied in ECMAScript. Today, it is rationalized that null is considered a placeholder for an object, even though, technically, it is a primitive value." ...

How can I tell where g++ was able to find an include file? Basically if I 4 Answers 4...

...2 data frames, you can use Reduce(rbind, list_of_data_frames) to mash them all together! – Yourpalal Aug 13 '15 at 21:12 1 ...

... mongod like this to avoid performance problems: numactl –interleave=all mongod [other options] 当时我并不太清楚NUMA是什么东西，所以没有处理，只是把问题反馈给了运维人员，后来知道运维人员也没有理会这茬儿，所以问题的序幕就这样拉开...

...he password info from a configuration file. If your configuration file is called foobar.config, then you would commit a file called foobar.config.example to the repository, containing sample data. To run your program, you would create a local (not tracked) file called foobar.config with your real pa...

...pending - Amortized O(1) (sometimes resizing the hashtable is required; usually only insertion is required) Prepending - O(n) via unshift, since it requires reassigning all the indexes Insertion - Amortized O(1) if the value does not exist. O(n) if you want to shift existing values (Eg, using splice...

... @Daniel, but this question is specifically about bash – John La Rooy Aug 19 '13 at 3:38 3 ...

It seems to me like when people talk about algorithm complexity informally, they talk about big-oh. But in formal situations, I often see big-theta with the occasional big-oh thrown in. I know mathematically what the difference is between the two, but in English, in what situation would using big-oh...

There's a good discussion of Generics and what they really do behind the scenes over at this question , so we all know that Vector<int[]> is a vector of integer arrays, and HashTable<String, Person> is a table of whose keys are strings and values Person s. However, what stumps me ...