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Install tkinter for Python
...: No module named 'tkinter' I Use(Python 3.7.5)
– sqp_125
Dec 9 '19 at 18:30
Solution: sudo apt-get install python3.7-...
No route matches [GET] /assets
...ils app that I'm trying to test in the production environment. I ran RAILS_ENV=production rake assets:precompile which generated all of my assets in /public/assets. The problem is that when I start my app w/ RAILS_ENV=production rails s thin I get:
...
Variable number of arguments in C++?
...number of arguments in C you include stdarg.h. From that you'll get the va_list type as well as three functions that operate on it called va_start(), va_arg() and va_end().
#include<stdarg.h>
int maxof(int n_args, ...)
{
va_list ap;
va_start(ap, n_args);
int max = va_arg(ap, int...
What does Redis do when it runs out of memory?
...wered Nov 27 '14 at 14:41
daniel__daniel__
10.3k1414 gold badges5858 silver badges9090 bronze badges
...
How is the undo tree used in Vim?
... Can you merge branches? (I'm kidding)
– he_the_great
Feb 9 '10 at 19:54
40
Kinda of. L...
in_array() and multidimensional array
I use in_array() to check whether a value exists in an array like below,
22 Answers
...
How to read json file into java with simple JSON library
... = new String(Files.readAllBytes(Paths.get(fileName)), StandardCharsets.UTF_8);
JSONObject obj = new JSONObject(text);
JSONArray arr = obj.getJSONArray("employees");
for(int i = 0; i < arr.length(); i++){
String name = arr.getJSONObject(i).get...
Tools to selectively Copy HTML+CSS+JS From A Specific Element of DOM [closed]
... exactly the same set of properties and values. As a result, instead of #LI_1{...}, #LI_2{...} I got #LI_1, #LI_2 {...}.
Problem 6 - cleaning up and fixing indentation of HTML
Since I was happy with the result, I moved to HTML. It looked like a mess, mostly because the outerHTML property keeps it ...
Can someone explain the traverse function in Haskell?
...an also compare it to Foldable, which defines the related function traverse_.
traverse_ :: (Foldable t, Applicative f) => (a -> f b) -> t a -> f ()
So you can see that the key difference between Foldable and Traversable is that the latter allows you to preserve the shape of the struct...
Are there pronounceable names for common Haskell operators? [closed]
... "to" |
| $ | "apply" |
| _ | "whatever" |
| !! | "index" |
| ++ | "concat" |
| [] | "empty list" ...