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How do I test for an empty JavaScript object?
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community wiki
14 revs, 14 users 53%Adam Zerner
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Increase heap size in Java
... you've chosen incorrectly, if you ask for 5g on a 32 bit system java will complain about an invalid value and quit.
As others have posted, use the cmd-line flags - e.g.
java -Xmx6g myprogram
You can get a full list (or a nearly full list, anyway) by typing java -X.
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Insert multiple rows WITHOUT repeating the “INSERT INTO …” part of the statement?
...ause exactly as per the statement in your question (you just need to add a comma to separate each values statement)...
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Change from SQLite to PostgreSQL in a fresh Rails project
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Merge two (or more) lists into one, in C# .NET
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I've updated the gist (gist.github.com/mcliment/4690433) with the performance test using BenchmarksDotNet and properly tested, AddRange is the best option for raw speed (about 4x and the larger the lists the better the increase), as Jon suggeste.
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Rails - How to use a Helper Inside a Controller
...yController < ApplicationController
include MyHelper
def xxxx
@comments = []
Comment.find_each do |comment|
@comments << {:id => comment.id, :html => html_format(comment.content)}
end
end
end
Option 2: Or you can declare the helper method as a class function...
IOS7 : UIScrollView offset in UINavigationController
...here:
https://web.archive.org/web/20160405135605/https://developer.apple.com/library/ios/documentation/userexperience/conceptual/TransitionGuide/AppearanceCustomization.html
https://developer.apple.com/documentation/uikit/uiviewcontroller/1621372-automaticallyadjustsscrollviewin
Update
In iOS 1...
node.js execute system command synchronously
... version 0.12 - so for a while) supports execSync:
child_process.execSync(command[, options])
You can now directly do this:
const execSync = require('child_process').execSync;
code = execSync('node -v');
and it'll do what you expect. (Defaults to pipe the i/o results to the parent process). No...
Converting a UNIX Timestamp to Formatted Date String
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Above comment doesn't make sense in this context. Using date with the second parameter as timestamp, as shown in answer, will not print the date in local timezone. Date will be printed with timezone info ignored, cause the timestam...
Developing GUIs in Python: Tkinter vs PyQt [closed]
...e GPL. This means if you release your code, it has to be available under a compatible license, under the terms of Nokia's GPL Exception, or under a commercial license (which costs money). This is in contrast to Qt, which is now available under the LGPL.
PyQt is not included by default with Python i...