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What does “Splats” mean in the CoffeeScript tutorial?
...args, as it allows you to treat function parameters as list
for example:
concat = (args...) -> args.join(', ')
concat('hello', 'world') == 'hello, world'
concat('ready', 'set', 'go!') == 'ready, set, go!'
it works in assginments, too:
[first, rest...] = [1, 2, 3, 4]
first == 1
rest == [2, 3,...
Increasing (or decreasing) the memory available to R processes
... ram so I seemed to be SOL. However, for shiggles, I set memory.limit(size=50000)...AND IT WORKED! But why???
– theforestecologist
Dec 16 '15 at 17:52
2
...
PHP method chaining?
... }
return new static;
}
public static function concate($delimiter)
{
self::$delimiter = $delimiter;
foreach (self::$data as $d)
{
self::$result .= $d.$delimiter;
}
return new static;
}
public static function...
How to Concatenate Numbers and Strings to Format Numbers in T-SQL?
...You need to explicitly convert your parameters to VARCHAR before trying to concatenate them. When SQL Server sees @my_int + 'X' it thinks you're trying to add the number "X" to @my_int and it can't do that. Instead try:
SET @ActualWeightDIMS =
CAST(@Actual_Dims_Lenght AS VARCHAR(16)) + 'x' +
...
Throw an error in a MySQL trigger
...
declare msg varchar(128);
if new.id < 0 then
set msg = concat('MyTriggerError: Trying to insert a negative value in trigger_test: ', cast(new.id as char));
signal sqlstate '45000' set message_text = msg;
end if;
end
//
delimiter ;
-- run the following as seperate sta...
Java equivalent to Explode and Implode(PHP) [closed]
.... so you can use
subString/split
for Explode & use String
concate
for Implode.
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为维护国家安全 中国限制出口无人机和高性能计算机 - 资讯 - 清泛网 - 专注...
...飞艇的设备或部件；
1.2.2 设计或改型后用于在15420米（50000英尺）以上高空飞行的无人驾驶航空飞行器、无人驾驶飞艇的吸气活塞式或转子式内燃发动机（海关商品编号：8407102010）。
注：1.1、1.2不适用于模型飞机或模型飞艇。...
How do I add the contents of an iterable to a set?
...python3
from timeit import Timer
a = set(range(1, 100000))
b = list(range(50000, 150000))
def one_by_one(s, l):
for i in l:
s.add(i)
def cast_to_list_and_back(s, l):
s = set(list(s) + l)
def update_set(s,l):
s.update(l)
results are:
one_by_one 10.184448844986036
cast_...
Storing Data in MySQL as JSON
...REPLACE(column, '{', ''), '}', ','), '"', ''),
LOCATE(
CONCAT('myfield', ':'),
REPLACE(REPLACE(REPLACE(column, '{', ''), '}', ','), '"', '')
) + CHAR_LENGTH(CONCAT('myfield', ':')),
LOCATE(
',',
SUBSTRING(
REPLAC...
Is it possible to view RabbitMQ message contents directly from the command line?
...body looking like:
{"count":5,"requeue":true,"encoding":"auto","truncate":50000}
count controls the maximum number of messages to get. You may get fewer messages than this if the queue cannot immediately provide them.
requeue determines whether the messages will be removed from the queue. If req...