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Is JavaScript guaranteed to be single-threaded?
... it can be possible for someone to write a javascript api that also spawns new javascript threads, but the api would be rhino-specific (e.g. node can only spawn a new process).
I imagine that even for an engine that supports multiple threads in javascript there should be compatibility with scripts t...
How do I run IDEA IntelliJ on Mac OS X with JDK 7?
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Wim Deblauwe, should be fixed in new version of mac-java-launcher.
– wonder.mice
Aug 13 '14 at 22:21
add a comment
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How do I delete rows in a data frame?
...ou can delete rows of a data.frame by number as per the top answer. I.e.,
newdata <- myData[-c(2, 4, 6), ]
However, if you are trying to write a robust data analysis script, you should generally avoid deleting rows by numeric position. This is because the order of the rows in your data may c...
Multiple github accounts on the same computer?
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@Camilo Because I dont know what the new updated link is, so if he is aware of the updated link, then it would be kind for him to hook it up :)
– Pavan
Oct 14 '13 at 6:26
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findViewById in Fragment
...s is the correct way to setup listeners on fragments... Perhaps this was a new development in the API.
– Sonny
Oct 8 '14 at 22:11
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How to convert SSH keypairs generated using PuTTYgen (Windows) into key-pairs used by ssh-agent and
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I assume this is something new, but if you open your private key in puttygen, then it will automatically show you an OpenSSH compatible, copyable, public key string in the UI.
– UpTheCreek
May 3 '15 at 18:55
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How to find out what group a given user has?
...l = function(e) {
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
...
How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
...ike INSERT, except that if an old row in the table has the same value as a new row for a PRIMARY KEY or a UNIQUE index, the old row is deleted before the new row is inserted.
Note this is not standard SQL. An example from the manual:
CREATE TABLE test (
id INT UNSIGNED NOT NULL AUTO_INCREMENT,...
Is there any JSON Web Token (JWT) example in C#?
... HashAlgorithms;
static JsonWebToken()
{
HashAlgorithms = new Dictionary<JwtHashAlgorithm, Func<byte[], byte[], byte[]>>
{
{ JwtHashAlgorithm.RS256, (key, value) => { using (var sha = new HMACSHA256(key)) { return sha.ComputeHash(value); } ...
Find object in list that has attribute equal to some value (that meets any condition)
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@agf Wow I literally had no idea that existed.. book.pythontips.com/en/latest/for_-_else.html cool!
– ThatTechGuy
Feb 4 '18 at 18:50
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