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Scala: join an iterable of strings
...,"): String = list match { case head :: tail => tail.foldLeft(head)(_ + delim + _) case Nil => "" }
– Davos
Jul 11 '17 at 14:37
2
...
using jquery $.ajax to call a PHP function
...corresponding value should point to the method to invoke, e.g.:
if(isset($_POST['action']) && !empty($_POST['action'])) {
$action = $_POST['action'];
switch($action) {
case 'test' : test();break;
case 'blah' : blah();break;
// ...etc...
}
}
I believe th...
Changing Font Size For UITableView Section Headers
...View viewForHeaderInSection:(NSInteger)section
In Swift:
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView?
Try something like this:
In Objective-C:
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
UILabel...
Templated check for the existence of a class member function?
...truct Generic {};
// SFINAE test
template <typename T>
class has_helloworld
{
typedef char one;
struct two { char x[2]; };
template <typename C> static one test( decltype(&C::helloworld) ) ;
template <typename C> static two test(...);
public:
enum...
How do I check if a file exists in Java?
...m there is an issue with stale file handles: bugs.java.com/bugdatabase/view_bug.do?bug_id=5003595 It's kind of obscure, but has been the cause of some frustrating bugs in production code before.
– CAW
Mar 17 '17 at 22:17
...
Using Chrome, how to find to which events are bound to an element
...opers.google.com/web/tools/chrome-devtools/console/command-line-reference#0_-_4
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Import multiple csv files into pandas and concatenate into one DataFrame
... as the column names.
import pandas as pd
import glob
path = r'C:\DRO\DCL_rawdata_files' # use your path
all_files = glob.glob(path + "/*.csv")
li = []
for filename in all_files:
df = pd.read_csv(filename, index_col=None, header=0)
li.append(df)
frame = pd.concat(li, axis=0, ignore_inde...
Where is my .vimrc file?
...o one of the following:
:e $HOME/.vimrc " on Unix, Mac or OS/2
:e $HOME/_vimrc " on Windows
:e s:.vimrc " on Amiga
Insert the settings you want, and save the file.
Note that exisitence of this file will disable the compatible option. See below for details.
Long answer:
There are two k...
Mockito + PowerMock LinkageError while mocking system class
...ackage (over different dependencies).
With any version higher than Java 7_25 it gives this error.
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querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...at is a member of the foo class: .foo li
document.querySelector("#view:_id1:inputText1") it doesn't work. But writing document.getElementById("view:_id1:inputText1") works. Any ideas why?
The : character has special meaning inside a selector. You have to escape it. (The selector escape charact...