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How can I join elements of an array in Bash?
... +1. What about printf -v bar ",%s" "${foo[@]}". It is one fork less (actually clone). It is even forking reading a file: printf -v bar ",%s" $(<infile).
– TrueY
Jun 8 '13 at 22:55
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Combining node.js and Python
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We are highly concerned about speed, what is the most elegant way how to call a Python "worker" from node.js in an asynchronous non-blocking way?
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Which characters make a URL invalid?
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@techiferous, Yeah, I forgot to allow "%" escaped characters. It should've looked more like: /^([!#$&-;=?-[]_a-z~]|%[0-9a-fA-F]{2})+$/ Was there anything else that you found it should've been accepting? (Just to be clear, that regex only checks ...
What is the difference between partitioning and bucketing a table in Hive ?
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Partitioning data is often used for distributing load horizontally, this has performance benefit, and helps in organizing data in a logical fashion. Example: if we are dealing with a large employee table and often run queries with WHERE clauses that restrict the results to a particular ...
JavaScript global event mechanism
... error handling facility in JavaScript? The use case is catching function calls from flash that are not defined.
10 Answers...
Doing something before program exit
...t this works great for normal termination of the script, but it won't get called in all cases (e.g. fatal internal errors).
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Convert Rows to columns using 'Pivot' in SQL Server
...n but it is easier to see the correct code using a hard-coded version initially.
First up, here are some quick table definitions and data for use:
CREATE TABLE #yt
(
[Store] int,
[Week] int,
[xCount] int
);
INSERT INTO #yt
(
[Store],
[Week], [xCount]
)
VALUES
(102, 1, 96),
(...
What MIME type should I use for CSV?
...reate a file with the .csv extension no matter which delimiter is used and PHP - as the most used server-side language- uses the term CSV in it's functions only, too. Call it "character separated files" and you're fine ;)
– mgutt
Oct 29 '18 at 13:41
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Where do I set my company name?
...lt, Xcode inserts a company
name something similar to the
following in all new source files (.m
.h etc):
Copyright (c) 2009 MyCompanyName. All
rights reserved.
Changing this reference is as simple
as entering the following from within
a terminal window, replacing
“YourNameH...
Programmatically find the number of cores on a machine
...ne, if a system is capable of turning some off they might not be counted. Calling sysconf with "_SC_NPROCESSORS_CONF" will return the total CPUs configured.
– Chris S
Apr 23 '11 at 18:43
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