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Code for a simple JavaScript countdown timer?
I want to use a simple countdown timer starting at 30 seconds from when the function is run and ending at 0. No milliseconds. How can it be coded?
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iOS app, programmatically get build version
..."Contact Us" button, I use this code to get a formatted HTML on the e-mail from the user. It gives me all the info that I need to start helping solving any issue:
struct utsname systemInfo;
uname(&systemInfo);
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
NSDate *date = [NSDat...
Why aren't Java Collections remove methods generic?
... object that you pass in to remove(); it only requires that they be equal. From the specification of remove(), remove(o) removes the object e such that (o==null ? e==null : o.equals(e)) is true. Note that there is nothing requiring o and e to be the same type. This follows from the fact that the equ...
What is the convention for word separator in Java package names?
...ds replacing special/invalid symbols with an underscore which is quite far from just recommending for general usage.
– eduard.dudar
Oct 26 '16 at 1:10
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Can we append to a {% block %} rather than overwrite?
... before they are included. This means that a template that includes blocks from another will contain blocks that have already been evaluated and rendered - not blocks that can be overridden by, for example, an extending template.
In that case I'd recommend using django-sekizai, wich allow you to do...
How to convert an Array to a Set in Java
...t.of(someArray);
In Java 10+, the generic type parameter can be inferred from the arrays component type:
var mySet = Set.of(someArray);
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Mocha / Chai expect.to.throw not catching thrown errors
...also be a big advantage of arrow functions. Arrow functions 'inherit' this from the scope they where created in. Often this can be an advantage, as it avoid the need for binding functions to their this object manually.
– Stijn de Witt
Jan 30 '19 at 18:43
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How to retrieve Request Payload
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php://input is a read-only stream that allows you to read raw data
from the request body. In the case of POST requests, it is preferable
to use php://input instead of $HTTP_RAW_POST_DATA as it does not
depend on special php.ini directives. Moreover, for those cases where
$HTTP_RAW_POST...
Private properties in JavaScript ES6 classes
...t in TypeScript. Private members are not compiled in private or read-only (from outside). Just declared like another (public) property. (ES5).
– Dominik
Feb 5 '19 at 9:49
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detach all packages while working in R
... invisible(*) is not necessary but can be useful to prevent the NULL reply from vertically spamming the R window.
(edit: 9/20/2019) In version 3.6.1
It may be helpful to convert loaded only names(sessionInfo()$loadedOnly) to explicitly attached packages first, and then detach the packages, as so.
la...