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renamed heroku app from website, now it's not found
... terminal and run any heroku command, I get App not found . Does anybody know of a way to remedy this?
6 Answers
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Why are there two kinds of functions in Elixir?
...lt; 0 -> x - y
y -> x + y
end
fun.(2) #=> 3
fun.(-2) #=> 3
Now, let's try something different. Let's try to define different clauses expecting a different number of arguments:
fn
x, y -> x + y
x -> x
end
** (SyntaxError) cannot mix clauses with different arities in functio...
How does Duff's device work?
... // Set to 20
{
int n = (count + 7) / 8; // n is now 3. (The "while" is going
// to be run three times.)
switch (count % 8) { // The remainder is 4 (20 modulo 8) so
// jump to th...
Duplicate log output when using Python logging module
...r = logging.getLogger(name)
logger.setLevel(logging.DEBUG)
now = datetime.datetime.now()
handler = logging.FileHandler(
'/root/credentials/Logs/ProvisioningPython'
+ now.strftime("%Y-%m-%d")
+ '.log')
formatter = logging.Formatter...
Is JavaScript a pass-by-reference or pass-by-value language?
...itive types (number, string, etc.) are passed by value, but objects are unknown, because they can be both passed-by-value (in case we consider that a variable holding an object is in fact a reference to the object) and passed-by-reference (when we consider that the variable to the object holds the o...
How can I troubleshoot my Perl CGI script?
I have a Perl script that isn't working and I don't know how to start narrowing down the problem. What can I do?
8 Answers
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Swift Beta performance: sorting arrays
...
tl;dr Swift 1.0 is now as fast as C by this benchmark using the default release optimisation level [-O].
Here is an in-place quicksort in Swift Beta:
func quicksort_swift(inout a:CInt[], start:Int, end:Int) {
if (end - start < 2){
...
Ukkonen's suffix tree algorithm in plain English
...e an initial tree, which looks like this:
And what it means is this:
Now we progress to position 2 (right after b). Our goal at each step
is to insert all suffixes up to the current position. We do this
by
expanding the existing a-edge to ab
inserting one new edge for b
In our representati...
How do you performance test JavaScript code?
...and easy to use, as are console.time(), console.profile(), and performance.now(). Chrome also gives you a timeline view which can show you what is killing your frame rate, where the user might be waiting, etc.
Finding documentation for all these tools is really easy, you don't need an SO answer for...
Find out time it took for a python script to complete execution
...
from datetime import datetime
startTime = datetime.now()
#do something
#Python 2:
print datetime.now() - startTime
#Python 3:
print(datetime.now() - startTime)
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