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Can JavaScript connect with MySQL?
... there is no extra latency from passing through a MySQL Server and need to convert from JavaScript code//objects into SQL operations. If for some reason, you’d prefer it to pass through a MySQL Server (for example if you’re storing tables in InnoDB) then that can be configured.
JSDB offers a ...
MySQL Creating tables with Foreign Keys giving errno: 150
... tables references each other, you must create one table without FK constraints, then create the second table, then add the FK constraint to the first table with ALTER TABLE.
The two tables must both support foreign key constraints, i.e. ENGINE=InnoDB. Other storage engines silently ignore foreign ...
What is the canonical way to check for errors using the CUDA runtime API?
...__, __LINE__); }
inline void gpuAssert(cudaError_t code, const char *file, int line, bool abort=true)
{
if (code != cudaSuccess)
{
fprintf(stderr,"GPUassert: %s %s %d\n", cudaGetErrorString(code), file, line);
if (abort) exit(code);
}
}
You can then wrap each API call with th...
When to use LinkedList over ArrayList in Java?
...
LinkedList and ArrayList are two different implementations of the List interface. LinkedList implements it with a doubly-linked list. ArrayList implements it with a dynamically re-sizing array.
As with standard linked list and array operations, the various methods will have different algorithmi...
How do I use DateTime.TryParse with a Nullable?
... to use the DateTime.TryParse method to get the datetime value of a string into a Nullable. But when I try this:
9 Answers...
How do I obtain the frequencies of each value in an FFT?
...ed to thank you... so thank you! Whenever I have a debate with someone on interpreting what the each point on the horizontal axis of the FFT is, I just point them to this link.
– rayryeng
Jan 30 '15 at 21:21
...
ReadOnlyCollection or IEnumerable for exposing member collections?
Is there any reason to expose an internal collection as a ReadOnlyCollection rather than an IEnumerable if the calling code only iterates over the collection?
...
Clearing a string buffer/builder after loop
... the delete method as follows:
StringBuffer sb = new StringBuffer();
for (int n = 0; n < 10; n++) {
sb.append("a");
// This will clear the buffer
sb.delete(0, sb.length());
}
Another option (bit cleaner) uses setLength(int len):
sb.setLength(0);
See Javadoc for more info:
...
Unique combination of all elements from two (or more) vectors
...s better than the classic expand.grid function because (1) strings are not converted into factors and (2) the sorting is more intuitive:
library(tidyr)
a <- c("ABC", "DEF", "GHI")
b <- c("2012-05-01", "2012-05-02", "2012-05-03", "2012-05-04", "2012-05-05")
crossing(a, b)
# A tibble: 15 x 2...
Is there a goto statement in Java?
...
That is good and interesting information, but it doesn't explain why it's still a reserved keyword.
– Thomas
Dec 4 '14 at 7:47
...