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Swift: Testing optionals for nil
... nil to move for the next condition. If only nil check is required, remove extra conditions in the following code.
Other than that, if x is not nil, the if closure will be executed and x_val will be available inside. Otherwise the else closure is triggered.
if let x_val = x, x_val > 5 {
//x...
Decorators with parameters?
..., a new function object.
All of foo's metadata is overridden, notably docstring and function name.
>>> print(foo)
<function _pseudo_decor.<locals>.ret_fun at 0x10666a2f0>
functools.wraps gives us a convenient method to "lift" the docstring and name to the returned function....
What does a colon following a C++ constructor name do? [duplicate]
...or base/member initializer list
class MyClass {
public :
MyClass(std::string& arg) {
member_ = arg;
}
std::string& member_;
};
The only correct way is:
class MyClass {
public :
MyClass(std::string& arg)
: member_(arg)
{
}
std::string&...
How to get filename without extension from file path in Ruby
...
Note that double quotes strings escape \'s.
'C:\projects\blah.dll'.split('\\').last
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Gson: Directly convert String to JsonObject (no POJO)
...in GSON, but I have a case where I do not know or have a POJO to convert a string into, prior to converting to JsonObject . Is there a way to go directly from a String to JsonObject ?
...
How to parse JSON using Node.js? [closed]
...rocess.env to retrieve the config vars from within the code.
Parsing a string containing JSON data
var str = '{ "name": "John Doe", "age": 42 }';
var obj = JSON.parse(str);
Parsing a file containing JSON data
You'll have to do some file operations with fs module.
Asynchronous version
var...
Parsing Visual Studio Solution files
...lt;SolutionProject> Projects { get; private set; }
public Solution(string solutionFileName)
{
if (s_SolutionParser == null)
{
throw new InvalidOperationException("Can not find type 'Microsoft.Build.Construction.SolutionParser' are you missing a assembly refere...
res.sendFile absolute path
...d yet that worked for me is simply using path.resolve with either separate strings or just one with the whole path:
// comma separated
app.get('/', function(req, res) {
res.sendFile( path.resolve('src', 'app', 'index.html') );
});
Or
// just one string with the path
app.get('/', function(req...
Remove elements from collection while iterating
...
Old Timer Favorite (it still works):
List<String> list;
for(int i = list.size() - 1; i >= 0; --i)
{
if(list.get(i).contains("bad"))
{
list.remove(i);
}
}
Benefits:
It only iterates over the list once
No extra objects ...
How to call Stored Procedure in Entity Framework 6 (Code-First)?
... that looks like:
public class ResultForCampaign
{
public string AgeGroup { get; set; }
public string Gender { get; set; }
public decimal Payout { get; set; }
}
and then call the procedure by doing the following:
using(var context = new DatabaseContext()...