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How to convert Set to Array?
....forEach(v => array.push(v));
Previously, using the non-standard, and now deprecated array comprehension syntax:
let array = [v for (v of mySet)];
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How to get time in milliseconds since the unix epoch in Javascript? [duplicate]
...
Date.now() returns a unix timestamp in milliseconds.
const now = Date.now(); // Unix timestamp in milliseconds
console.log( now );
Prior to ECMAScript5 (I.E. Internet Explorer 8 and older) you needed to construct a Da...
“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
...e']) ? $_POST['value'] : '';
This has become much cleaner as of PHP 7.0, now you can use the null coalesce operator:
// Null coalesce operator - No need to explicitly initialize the variable.
$value = $_POST['value'] ?? '';
Set a custom error handler for E_NOTICE and redirect the messages away f...
What is the combinatory logic equivalent of intuitionistic type theory?
...----------------- x fresh for G
. |- valid G, x:S |- valid
And now we can say how to synthesize types for terms in any given context, and how to change the type of something up to the computational behaviour of the terms it contains.
G |- valid G |- S : Set G |- T : Pi S...
Better explanation of when to use Imports/Depends
...function.
This is why using namespaces is such a good practice, why it is now enforced by CRAN, and (in particular) why using "Imports" is safer than using "Depends".
Edited to add an important caveat:
There is one unfortunately common exception to the advice above: if your package relies on a ...
What is a good use case for static import of methods?
...rs of your code (including you, a few months after you wrote it) will not know which class a static member comes from. Importing all of the static members from a class can be particularly harmful to readability; if you need only one or two members, import them individually.
(https://docs.oracle.co...
Admob Error in Eclipse for android:configChanges
...t; tags (which probably only had keyboard|keyboardHidden|orientation until now).
However, if your application targets API level 12 or lower, then your activity always handles this configuration change itself (this configuration change does not restart your activity, even when running on an Andro...
Remove by _id in MongoDB console
... new for the ObjectId.
Also, note that in some drivers/tools, remove() is now deprecated and deleteOne or deleteMany should be used instead.
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Group by multiple columns in dplyr, using string vector input
...as the expression is wrapped in a call to vars().
– knowah
Aug 15 '19 at 14:13
@Khashir yes, this answer still works @...
this.setState isn't merging states as I would expect
...ability helpers were recently added to React.addons, so with that, you can now do something like:
var newState = React.addons.update(this.state, {
selected: {
name: { $set: 'Barfoo' }
}
});
this.setState(newState);
Immutability helpers documentation.
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