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What is process.env.PORT in Node.js?
... and stop at the first available value if any.
– HoCo_
May 13 '18 at 22:09
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Default value in Go's method
...er at the end
// a is required, b is optional.
// Only the first value in b_optional will be used.
func Concat2(a string, b_optional ...int) string {
b := 5
if len(b_optional) > 0 {
b = b_optional[0]
}
return fmt.Sprintf("%s%d", a, b)
}
**Option 3:** A config struct
// A declarativ...
ImportError: no module named win32api
...n installation for win32api and you should find win32api.pyd under ${PYTHON_HOME}\Lib\site-packages\win32.
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Invalid postback or callback argument. Event validation is enabled using '
... One more option: implement IPostBackEventHandler and call js __doPostBack('<%= UniqueId.ToString() %>',arg)
– gdbdable
May 22 '14 at 7:11
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Facebook Post Link Image
...
The easiest way is just a link tag:
<link rel="image_src" href="http://stackoverflow.com/images/logo.gif" />
But there are some other things you can add to your site to make it more Social media friendly:
Open Graph Tags
Open Graph tags are tags that you add to the <...
Is there any JSON Web Token (JWT) example in C#?
...('+', '-'); // 62nd char of encoding
output = output.Replace('/', '_'); // 63rd char of encoding
return output;
}
// from JWT spec
private static byte[] Base64UrlDecode(string input)
{
var output = input;
output = output.Replace('-', '+'); // 62nd cha...
structure vs class in swift language
...mple here code to understand well.
struct SomeStruct {
var a : Int;
init(_ a : Int) {
self.a = a
}
}
class SomeClass {
var a: Int;
init(_ a: Int) {
self.a = a
}
}
var x = 11
var someStruct1 = SomeStruct(x)
var someClass1 = SomeClass(x)
var someStruct2 = someStruct1
var someClass2 = so...
How can I merge properties of two JavaScript objects dynamically?
...bj2
* @returns obj3 a new object based on obj1 and obj2
*/
function merge_options(obj1,obj2){
var obj3 = {};
for (var attrname in obj1) { obj3[attrname] = obj1[attrname]; }
for (var attrname in obj2) { obj3[attrname] = obj2[attrname]; }
return obj3;
}
...
Table Header Views in StoryBoards
...eak var audioView: UIView!
Then in tableview code I did:
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
return audioView
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 142
}
It work...
how to check redis instance version?
...
redis-cli INFO SERVER | grep redis_version
– Andriy Tolstoy
Dec 23 '19 at 11:36
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