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How to merge YAML arrays?
...bine Rules. Can you provide an working gitlabci example? I tried something based on your solution, but get always an validation error.
– niels
Nov 28 '19 at 17:20
1
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Postgresql not creating db with “createdb” as superuser, yet not outputting errors [duplicate]
...ne utility which you can run from bash and not from psql.
To create a database from psql, use the create database statement like so:
create database [databasename];
Note: be sure to always end your SQL statements with ;
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How to move child element from one parent to another using jQuery [duplicate]
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Based on the answers provided, I decided to make a quick plugin to do this:
(function($){
$.fn.moveTo = function(selector){
return this.each(function(){
var cl = $(this).clone();
$(cl).ap...
Why would one use the Publish/Subscribe pattern (in JS/jQuery)?
...he main goal is to reduce coupling between the code. It's a somewhat event-based way of thinking, but the "events" aren't tied to a specific object.
I'll write out a big example below in some pseudo code that looks a bit like JavaScript.
Let's say we have a class Radio and a class Relay:
class Re...
How to split a delimited string in Ruby and convert it to an array?
... to use the split method in the ruby docs
Divides str into substrings based on a delimiter, returning an array
of these substrings.
If pattern is a String, then its contents are used as the delimiter
when splitting str. If pattern is a single space, str is split on
whitespace, with l...
What is pseudopolynomial time? How does it differ from polynomial time?
...r of bits required to represent W
i.e. size of input= s =log(W) (log= log base 2)
-> 2^(s)=2^(log(W))
-> 2^(s)=W (because 2^(log(x)) = x)
Now, running time of knapsack= O(nW) = O(n * 2^s)
which is not polynomial.
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Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
...or the request and a background thread (async) looping to read a file, database or whatever.
– JavierJ
Nov 30 '15 at 18:22
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How do I check if a SQL Server text column is empty?
...ullness and emptiness nature of a text column and accordingly assign value based on condition. Upvote for the answer since this is what I was looking for. Thanks
– user_v
Feb 3 '12 at 17:10
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Rails: Why does find(id) raise an exception in rails? [duplicate]
If there is no user with an id of 1 in the database, trying User.find(1) will raise an exception.
2 Answers
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jQuery: count number of rows in a table
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@DevlshOne That is not true, length is not zero base, check the documentation: api.jquery.com/length
– Miguel
May 1 '13 at 16:01
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