大约有 7,000 项符合查询结果（耗时：0.0182秒） [XML]
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 ...
Set value of textarea in jQuery
...
val(foo) works for me (jQuery 1.9.1). Using text(foo) loses to update textarea content loses the linebreaks on IE, using val(foo) preserves them.
– Tim
Sep 11 '13 at 9:21
...
How to show changed file name only with git log? [duplicate]
...puts a list of files only and their state (added, modified, deleted):
A foo/bar/xyz/foo.txt
M foo/bor/bar.txt
...
The -k2,2 option for sort, makes it sort by file path instead of the type of change (A, M, D,).
share
...
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...
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...
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 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...
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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