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Convert generic List/Enumerable to DataTable?
...lliseconds);
}
static void Main()
{
List<MyData> foos = new List<MyData>();
for (int i = 0 ; i < 5000 ; i++ ){
foos.Add(new MyData
{ // just gibberish...
A = i,
B = i.ToString(),
C = Da...
Load “Vanilla” Javascript Libraries into Node.js
...o export.
So for a library like the file ./lib/mylibrary.js...
function Foo() { //Do something... }
biz = "Blah blah";
var bar = {'baz':'filler'};
When you want to use its functionality in your Node.js code...
var vanilla = require('vanilla');
var mylibrary = vanilla.require('./lib/mylibrary.j...
Join strings with a delimiter only if strings are not null or empty
...
Consider
var address = "foo";
var city;
var state = "bar";
var zip;
text = [address, city, state, zip].filter(Boolean).join(", ");
console.log(text)
.filter(Boolean) (which is the same as .filter(x => x)) removes all "falsy" values ...
Mercurial (hg) commit only certain files
...u can specify the files on the command line, as tonfa writes:
$ hg commit foo.c foo.h dir/
That just works and that's what I do all the time. You can also use the --include flag that you've found, and you can use it several times like this:
$ hg commit -I foo.c -I "**/*.h"
You can even use a f...
Close file without quitting VIM application?
...ever this doesn't completely remove the buffer, it's still accessible:
:e foo
:e bar
:buffers
1 #h "foo" line 1
2 %a "bar" line 1
Press ENTER or type command to continue
:bd 2
:buffers
1 %a "foo" line 1
Press ENT...
How to shuffle a std::vector?
...random_engine e(seed);
while(true)
{
std::vector<int> foo{1,2,3,4,5};
std::shuffle(foo.begin(), foo.end(), e);
std::cout << "shuffled elements:";
for (int& x: foo) std::cout << ' ' << x;
std::cout << '\n';
}
return 0...
PHP Fatal error: Cannot redeclare class
...
It means you've already created a class.
For instance:
class Foo {}
// some code here
class Foo {}
That second Foo would throw the error.
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How is the “greater than” or “>” character used in CSS?
...t would match the following <em>s:
<p><strong><em>foo</em></strong></p>
<p>Text <em>foo</em> bar</p>
On the other hand,
p > em
Will match only <em>s that are immediate children of <p>. So it will match:
<p&g...
C# 4 default parameter values: How to assign a default DateTime/object value? [duplicate]
... you can't fake it with attributes.
.method private hidebysig static void foo([opt] int32 x) cil managed
{
.param [1] = int32(5)
.maxstack 8
L_0000: nop
L_0001: ret
}
.method //this is a new method
private hidebysig static //it is private, ???, and static
void foo //it returns...
How do you create optional arguments in php?
...le or a function call.
If you need this functionality however:
function foo($foo, $bar = false)
{
if(!$bar)
{
$bar = $foo;
}
}
Assuming $bar isn't expected to be a boolean of course.
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