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psql: FATAL: database “” does not exist
...
In my case i wrote $ createdb -h localhost to solve the error could not connect to database postgres: could not connect to server. After that i may connect to postgresql console via psql -h localhost.
– ExiRe
Jan 9 '14 at 14:23
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Dynamically update values of a chartjs chart
...7]
},
{
fillColor : "rgba(151,187,205,0.5)",
strokeColor : "rgba(151,187,205,1)",
pointColor : "rgba(151,187,205,1)",
pointStrokeColor : "#fff",
data : [28,48,40,19,96,87,66,97,92,85]
...
C++ performance challenge: integer to std::string conversion
...testing results:
Code Sources:
- Voigt
- Timo
- ergosys
- user434507
- user-voigt-timo
- hopman-fun
- hopman-fast
gcc 4.4.5 -O2 on Ubuntu 10.10 64-bit, Core i5
hopman_fun: 124.688 MB/sec --- 8.020 s
hopman_fast: 137.552 MB/sec --- 7.270 s
voigt: 120.192 MB/sec --- 8.320 s
use...
What is the --save option for npm install?
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Looks like npm will not fire any error if you put a none exist option, like --save-xxxxxx. It just ignore it and the default behavior --save-prod will be in affect. Maybe --save comes from some old npm version.
– leon
M...
Most efficient way to create a zero filled JavaScript array?
... are medium fast for small arrays
solution based on Array.apply (P) throws error for big arrays
function P(n) {
return Array.apply(null, Array(n)).map(Number.prototype.valueOf,0);
}
try {
P(1000000);
} catch(e) {
console.error(e.message);
}
Code and example
Below code presents s...
How to install gem from GitHub source?
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ERROR: While executing gem ... (NoMethodError) undefined method 'build' for Gem::Package:Module Sounds very cool but I won't be looking into it further. Just wanted to post that it didn't work for me in case someone else...
Java: random long number in 0
...odify this to perform nextLong:
long nextLong(Random rng, long n) {
// error checking and 2^x checking removed for simplicity.
long bits, val;
do {
bits = (rng.nextLong() << 1) >>> 1;
val = bits % n;
} while (bits-val+(n-1) < 0L);
return val;
}
...
How to convert list of key-value tuples into dictionary?
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This gives me the same error as trying to split the list up and zip it. ValueError: dictionary update sequence element #0 has length 1916; 2 is required
THAT is your actual question.
The answer is that the elements of your list are not what you ...
.htaccess redirect all pages to new domain
... YOUYOU
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What are the effects of exceptions on performance in Java?
...ken to unwind the and trace the stack, and secondarily the throwing of the error. I would have selected this as the final answer.
– Engineer
Aug 17 '12 at 12:55
...