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What is a non-capturing group in regular expressions?
... Group 4: "sectetuer"
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So, if we apply the substitution string:
$1_$3$2_$4
... over it, we are trying to use the first group, add an underscore, use the third group, then the second group, add another underscore, and then the fourth group. The resulting string would be like the one below....
Converting NumPy array into Python List structure?
...rray instead, and you'll end up with a list of numpy scalars. (Thanks to Mr_and_Mrs_D for pointing that out in a comment.)
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PDB文件：每个开发人员都必须知道的 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...入GAC的.NET的binary，需要将PDB文件拷贝到C:\Windows\assembly\GAC_MSIL\Example\1.0.0.0__682bc775ff82796a类似的binary所在的目录。另一个变通的方法是定义环境变量DEVPATH，从而代替使用命令GACUTIL将binary放入GAC中。在定义DEVPATH后，只需要将binary和...
Passing arguments to angularjs filters
...pp level variable -
var app = angular.module('filterApp',[]);
app.value('test_obj', {'TEST' : 'test be check se'});
Your Filter will be like :-
app.filter('testFilter', [ 'test_obj', function(test_obj) {
function test_filter_function(key, dynamic_data) {
if(dynamic_data){
var...
Git merge reports “Already up-to-date” though there is a difference
I have a git repository with 2 branches: master and test.
15 Answers
15
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How to create a temporary directory/folder in Java?
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If you need a temporary directory for testing and you are using jUnit, @Rule together with TemporaryFolder solves your problem:
@Rule
public TemporaryFolder folder = new TemporaryFolder();
From the documentation:
The TemporaryFolder Rule allows creation of...
How to elegantly rename all keys in a hash in Ruby? [duplicate]
...at! Now, if I only want to change some of the key names, is there a way to test if a mapping exist for the key?
– Chanpory
Nov 9 '10 at 20:18
28
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What are all possible pos tags of NLTK?
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The book has a note how to find help on tag sets, e.g.:
nltk.help.upenn_tagset()
Others are probably similar. (Note: Maybe you first have to download tagsets from the download helper's Models section for this)
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Getting hold of the outer class object from the inner class object
...the following example (from Oracle), the variable x in main() is shadowing Test.x:
class Test {
static int x = 1;
public static void main(String[] args) {
InnerClass innerClassInstance = new InnerClass()
{
public void printX()
{
System...
Alias with variable in bash [duplicate]
...or that, rather than alias, and then exported it, like this:
function tail_ls { ls -l "$1" | tail; }
export -f tail_ls
Note -f switch to export: it tells it that you are exporting a function. Put this in your .bashrc and you are good to go.
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