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Convert pem key to ssh-rsa format
...th ssh-keygen
ssh-keygen -t rsa -b 2048 -f dummy-ssh-keygen.pem -N '' -C "Test Key"
Converting DER to PEM
If you have an RSA key pair in DER format, you may want to convert it to PEM to allow the format conversion below:
Generation:
openssl genpkey -algorithm RSA -out genpkey-dummy.cer -outfo...
list every font a user's browser can display
...version is a bit flaky. It gets fonts by iterating through known fonts and testing.
The most accurate way (albeit having to use a propriety plugin) is to use Flash. Here you can get the list of fonts without having to test for them individually using dimensions.
You are going have to decide wheth...
Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
...ays to clone an array:
loop
slice
Array.from()
concat
spread operator (FASTEST)
map A.map(function(e){return e;});
There has been a huuuge BENCHMARKS thread, providing following information:
for blink browsers slice() is the fastest method, concat() is a bit slower, and while loop is 2.4x slower....
How to override equals method in Java
...lasses.
There is no need for the class to provide a “logical equality” test. For example, java.util.regex.Pattern could have overridden equals to check whether two Pattern instances represented exactly the same regular expression, but the designers didn’t think that clients would need or want ...
How to disable scrolling temporarily?
...adding event
var supportsPassive = false;
try {
window.addEventListener("test", null, Object.defineProperty({}, 'passive', {
get: function () { supportsPassive = true; }
}));
} catch(e) {}
var wheelOpt = supportsPassive ? { passive: false } : false;
var wheelEvent = 'onwheel' in document.c...
How to change root logging level programmatically for logback
...ent registered/happens inside mockAppender.
Here is how it looks like in test:
import org.slf4j.LoggerFactory;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.classic.spi.LoggingEvent;
import ch.qos...
Launch custom android application from android browser
...
Tested on dev setup. Actually I was giving a wrong domain name. My bad.
– Ankit Garg
Nov 7 '13 at 9:38
...
How to check if an element is in an array
... be equatable and takes a predicate as an
argument, see e.g. Shorthand to test if an object exists in an array for Swift?.
Swift older versions:
let elements = [1,2,3,4,5]
if contains(elements, 5) {
println("yes")
}
...
Check if an array is empty or exists
...ength; // => "number"
Case Empty Array
Now since we tested all other possibilities, we're talking to an instance of Array. In order to make sure it's not empty, we ask about number of elements it's holding, and making sure it has more than zero elements.
firstArray = [];
firs...
Fastest way to copy file in node.js
...m (copying/reading/writing etc). I'd like to know which methods are the fastest, and I'd be happy to get an advice. Thanks.
...