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Environment variables for java installation
...te the path of the bin folder in the variable value
Click OK
The path is now set permanently.
TIP: The tool "Rapid Environment Editor" (freeware) is great for modifying the environment variables and useful in that case
TIP2: There is also a faster way to access the Environment Variables: press W...
How do I execute inserts and updates in an Alembic upgrade script?
... teams[player.team_name]
session.commit()
# don't need team name now that team relationship is set
op.drop_column('players', 'team')
def downgrade():
bind = op.get_bind()
session = orm.Session(bind=bind)
# re-add the players.team column
op.add_column('players', sa.Co...
Pass correct “this” context to setTimeout callback?
...ause it wasn't yet widely supported and you needed polyfills to use it but now it's everywhere:
if (this.options.destroyOnHide) {
setTimeout(function(){ this.tip.destroy() }.bind(this), 1000);
}
The bind function creates a new function with the this value pre-filled.
Now in modern JS, this ...
How to set child process' environment variable in Makefile
... Oddly enough I did test it earlier that showed it worked.. (not sure why now..) I can go back and delete the comment I guess..
– AnthonyC
Aug 22 '18 at 5:53
3
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What is the most efficient way to deep clone an object in JavaScript?
...ined properties, etc., but this will also slow you down a little.
If you know the structure of the objects you are trying to clone or can avoid deep nested arrays you can write a simple for (var i in obj) loop to clone your object while checking hasOwnProperty and it will be much much faster than j...
What's the difference between lists and tuples?
... the first box under 3. Permitted operation shows the tuple case first. I know it is usual to show success then error, but that messed with my head for a few moments.
– dmckee --- ex-moderator kitten
Sep 10 '18 at 15:08
...
How can I reliably get an object's address when operator& is overloaded?
...regular member functions of a template class, thanks for pointing it out. (Now I just need to figure out what is the use of the overload, any tip ?)
– Matthieu M.
Jun 27 '11 at 16:50
...
Throw an error in a MySQL trigger
...N
DECLARE errorWithDate varchar(64);
select concat("[",DATE_FORMAT(now(),"%Y%m%d %T"),"] ", errorText) into errorWithDate;
INSERT IGNORE INTO mysql_error_generator(error_field) VALUES (errorWithDate);
INSERT INTO mysql_error_generator(error_field) VALUES (errorWithDate);
END;
$$
DELI...
List all sequences in a Postgres db 8.1 with SQL
...ound in preferences to find a place to set it as default to no avail). Hm, now if only we had a "asker-accepted answer doesn't automatically trump everything else"-option, that would be a truly great victory for posterity.
– SeldomNeedy
Jul 28 '15 at 16:52
...
Are C# events synchronous?
... property. And it's merely a Func<int, string>, nothing fancy here.
Now the interesting parts are:
add_OnCall(Func<int, string>)
remove_OnCall(Func<int, string>)
and how OnCall is invoked in Do()
How is Subscribing and Unsubscribing Implemented?
Here's the abbreviated add_OnC...