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Can you attach Amazon EBS to multiple instances?
...ble to get an EBS volume attached to more than one instance, it would be a _REALLY_BAD_IDEA_. To quote Kekoa, "this is like using a hard drive in two computers at once"
Why is this a bad idea? ...
The reason you can't attach a volume to more than one instance is that EBS provides a "block storage...
Sort array of objects by string property value
...ite your own comparison function:
function compare( a, b ) {
if ( a.last_nom < b.last_nom ){
return -1;
}
if ( a.last_nom > b.last_nom ){
return 1;
}
return 0;
}
objs.sort( compare );
Or inline (c/o Marco Demaio):
objs.sort((a,b) => (a.last_nom > b.last_nom) ? 1 :...
Is there a JavaScript / jQuery DOM change listener?
...e kind of fingerprinting the existing contents.
Cloaking History API:
let _pushState = History.prototype.pushState;
History.prototype.pushState = function (state, title, url) {
_pushState.call(this, state, title, url);
console.log('URL changed', url)
};
Listening to hashchange, popstate event...
Using backticks around field names
... double quotes. It will not always work. For instance... DELETE FROM app_key_stores WHERE ("key" = 'c5cc4f30-31f3-0130-505e-14dae9da9fc5_range'); Query OK, 0 rows affected (0.00 sec) DELETE FROM app_key_stores WHERE (key = 'c5cc4f30-31f3-0130-505e-14dae9da9fc5_range'); Query OK, 5 rows affected ...
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...
Android – Listen For Incoming SMS Messages
... stub
if(intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")){
Bundle bundle = intent.getExtras(); //---get the SMS message passed in---
SmsMessage[] msgs = null;
String msg_from;
if (bundle != null){
...
Difference between object and class in Scala
...// Prefix to call
def m(x: Int) = X.f(x)
// Import and use
import X._
def n(x: Int) = f(x)
private def o = 2
}
object X {
private def f(x: Int) = x * x
// object X can see private members of class X
def g(x: X) = {
import x._
x.o * o // fully specified and imported
}
}...
What's the advantage of a Java enum versus a class with public static final fields?
...d this 4.5 yrs ago, and at least a few people found it provided new info ¯_(ツ)_/¯
– Dave Newton
Jul 9 '17 at 17:09
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Enable Vim Syntax Highlighting By Default
...
Edit your $HOME/.vimrc (Unix/Linux/OSX) or $HOME/_vimrc (Windows) to include the following line:
syntax on
EDIT
If your syntax highlighting doesn't work when you start Vim, you probably don't have a
$HOME/.vimrc or $HOME/_vimrc (known collectively as vimrc from now on)....
is there a require for json in node.js
...
@coen yes, we always use __dirname to make relative paths.
– Raynos
Aug 23 '11 at 15:19
...