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Do rails rake tasks provide access to ActiveRecord models?
...
All your rails models etc. will be available for the current environment from within each task block, unless you're using the production environment, in which case you need to require the specific models you want to use. Do this within the body of the task. (IIRC this varies between different ver...
Converting bool to text in C++
...ar * const BoolToString(bool b)
{
return b ? "true" : "false";
}
Aside from that I have a few other gripes, particularly with the accepted answer :)
// this is used in C, not C++. if you want to use printf, instead include <cstdio>
//#include <stdio.h>
// instead you should use the ...
Is it possible to create a “weak reference” in javascript?
... It's typically done in complex web applications to prevent memory leakage from browsers (typically IE, especially older versions) when there is a reference loop between a DOM Node or event handler, and an object associated with it such as a closure. In these cases a full reference-counting scheme m...
How to escape JSON string?
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For those using the very popular Json.Net project from Newtonsoft the task is trivial:
using Newtonsoft.Json;
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var s = JsonConvert.ToString(@"a\b");
Console.WriteLine(s);
....
This code prints:
"a\\b"
That is, the resulting string value contains the quotes as well ...
Reorder bars in geom_bar ggplot2
I am trying to make a bar-plot where the plot is ordered from the miRNA with the highest value to the miRNA with the lowest. Why does my code not work?
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JavaScript check if variable exists (is defined/initialized)
... @StevenPenny Check the timeline. The top answer was merged from another question after this answer was posted
– Rob♦
Dec 19 '16 at 23:25
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How do I define a method which takes a lambda as a parameter in Java 8?
...ublic Web-accessible version of the Lambda-enabled Java 8 JavaDocs, linked from http://lambdafaq.org/lambda-resources. (This should obviously be a comment on Joachim Sauer's answer, but I can't get into my SO account with the reputation points I need to add a comment.) The lambdafaq site (I mainta...
POST unchecked HTML checkboxes
...ave to keep track of which values in the posted data were expected to come from checkboxes.
<form>
<input type='hidden' value='0' name='selfdestruct'>
<input type='checkbox' value='1' name='selfdestruct'>
</form>
...
How to make junior programmers write tests? [closed]
...s to help junior level programmers 'get it' and learn the right techniques from the seniors is to do a bit of pair programming.
Try this: on an upcoming project, pair the junior guy up with yourself or another senior programmer. They should work together, taking turns "driving" (being the one typi...
How to make a phone call using intent in Android?
...phone = "+34666777888";
Intent intent = new Intent(Intent.ACTION_DIAL, Uri.fromParts("tel", phone, null));
startActivity(intent);
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