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PG::ConnectionBad - could not connect to server: Connection refused
...It could be failing silently because your computer didn't complete the shutdown process completely which means postgres didn't delete the PID (process id) file.
The PID file is used by postgres to make sure only one instance of the server is running at a time. So when it goes to start again, it fa...
Really Cheap Command-Line Option Parsing in Ruby
...ten Trollop (which had already been mentioned here), but feel free to tone down the first paragraph a bit.
– cjs
Jun 19 '09 at 10:22
33
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What are some good Python ORM solutions? [closed]
... already familiar with django-style declarative models, check out peewee:
https://github.com/coleifer/peewee
Example:
import datetime
from peewee import *
class Blog(Model):
name = CharField()
class Entry(Model):
blog = ForeignKeyField(Blog)
title = CharField()
body = TextField(...
what exactly is device pixel ratio?
...
https://developer.mozilla.org/en/CSS/Media_queries#-moz-device-pixel-ratio
-moz-device-pixel-ratio
Gives the number of device pixels per CSS pixel.
this is almost self-explaining. the number describes the ratio of how...
How to study design patterns? [closed]
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@NielsW It's up, maybe it was only temporary down.
– uthomas
Nov 15 '14 at 11:35
Thanks ...
Code for a simple JavaScript countdown timer?
I want to use a simple countdown timer starting at 30 seconds from when the function is run and ending at 0. No milliseconds. How can it be coded?
...
How to change MySQL data directory?
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down voted because it doesn't work as detailed at serverfault.com/a/733998/279553
– user3338098
Nov 5 '15 at 15:30
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How can I catch a 404?
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-1 Partial explanation of my ancient downvote: code throws NullReferenceException if, for some reason, we.Response is not HttpWebResponse. If the code wishes to assume that it will always have that type, then it should simply cast: HttpWebResponse errorResponse ...
JetBrains / IntelliJ keyboard shortcut to collapse all methods
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Hex transparency in colors [duplicate]
... table of percentages to hex values and run the code in this playground in https://play.golang.org/p/l1JaPYFzDkI .
Short explanation in pseudocode
Percentage to hex values
decimal = percentage * 255 / 100 . ex : decimal = 50*255/100 = 127.5
convert decimal to hexadecimal value . ex: 127.5 in d...