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Delete a key from a MongoDB document using Mongoose
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56
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The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
...ven more clearly and efficiently, by taking care of the redundant trailing comma:
StringBuilder result = new StringBuilder();
for(String string : collectionOfStrings) {
result.append(string);
result.append(",");
}
return result.length() > 0 ? result.substring(0, r...
How do I show/hide a UIBarButtonItem?
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Here's a simple approach:
hide: barbuttonItem.width = 0.01;
show: barbuttonItem.width = 0; //(0 defaults to normal button width, which is the width of the text)
I just ran it on my retina iPad, and .01 is small enough for it to not show up.
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How can I generate UUID in C#
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Here is a client side "sequential guid" solution.
http://www.pinvoke.net/default.aspx/rpcrt4.uuidcreate
using System;
using System.Runtime.InteropServices;
namespace MyCompany.MyTechnology.Framework.CrossDomain.GuidExtend
{
public static class Guid
{
/*
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jQuery: count number of rows in a table
... edited Aug 13 '11 at 19:15
Community♦
111 silver badge
answered Jul 19 '09 at 14:05
tvanfossontvanfosso...
Transpose/Unzip Function (inverse of zip)?
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This does not work in Python3. See: stackoverflow.com/questions/24590614/…
– Tommy
Jul 5 '14 at 21:35
36
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Running a cron every 30 seconds
...e May 26 21:00:30 AWST 2020 Sleeping for 6 seconds (max 30).
Tue May 26 21:01:00 AWST 2020 Sleeping for 27 seconds (max 31).
Tue May 26 21:01:30 AWST 2020 Sleeping for 25 seconds (max 32).
Tue May 26 21:02:00 AWST 2020 Sleeping for 15 seconds (max 33).
Tue May 26 21:02:30 AWST 2020 Sleeping for 10 s...
When should assertions stay in production code? [closed]
There's a discussion going on over at comp.lang.c++.moderated about whether or not assertions, which in C++ only exist in debug builds by default, should be kept in production code or not.
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Can someone explain the right way to use SBT?
...ingKey, TaskKey, InputKey) - read the section called "Task Keys" in http://www.scala-sbt.org/release/docs/Getting-Started/Basic-Def
Keep those 4 pages open at all times so that you can jump and look up various definitions and examples:
http://www.scala-sbt.org/release/docs/Getting-Started/Basic-...
Update just one gem with bundler
... version in Gemfile or possibly Gemfile.lock prior to running these bundle commands
– Harry Wood
Sep 10 '19 at 22:16
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