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JavaScript, elegant way to check nested object properties for null/undefined [duplicate]
... may return a property from anywhere in the chain, it doesn't specifically test for the last property.
– RobG
May 22 '14 at 14:21
2
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PyLint, PyChecker or PyFlakes? [closed]
...
Well, I am a bit curious, so I just tested the 3 myself right after asking the question ;-)
Ok, this is not a very serious review but here is what I can say :
I tried the tools with the default settings (it's important because you can pretty much choose your ...
How to elegantly deal with timezones
...Note that there isn't a binary distribution, you'll have to download the latest version and compile it yourself.
At the time of this writing, it currently parses all of the files in the latest data distribution (I actually ran it against the ftp://elsie.nci.nih.gov/pub/tzdata2011k.tar.gz file on Se...
Executing elements inserted with .innerHTML
...o it would look like this instead:
<img src="empty.gif" onload="alert('test');this.parentNode.removeChild(this);" />
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Ruby: require vs require_relative - best practice to workaround running in both Ruby =1.
...re 'require_relative' before you require_relative.
For example, one of my test files looks like this:
require 'rubygems'
require 'bundler/setup'
require 'minitest/autorun'
require 'require_relative'
require_relative '../lib/foo'
This is the cleanest solution out of any of these IMO, and the gem ...
Get absolute path of initially run script
...y
The script is executed with the CLI, as a relative path
Here are two test scripts; the main script and an included file:
# C:\Users\Redacted\Desktop\main.php
include __DIR__ . DIRECTORY_SEPARATOR . 'include.php';
echoScriptPath();
# C:\Users\Redacted\Desktop\include.php
function echoScriptPa...
How can I check if a background image is loaded?
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A comparison between this test and this one shows that you have to call .remove() on $('<img/>') object to avoid a memory leak. You should see a stable memory consumption on the first test and a memory increase on the second one. After few hour...
How to check if an email address exists without sending an email?
...r via telnet to ask whether an email address exists. Here's an example of testing an email address for stackoverflow.com:
C:\>nslookup -q=mx stackoverflow.com
Non-authoritative answer:
stackoverflow.com MX preference = 40, mail exchanger = STACKOVERFLOW.COM.S9B2.PSMTP.com
stackoverflow.c...
C++ Best way to get integer division and remainder
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I tried a quick test. With g++ 4.3.2 using -O2, the assembler output clearly shows it using one idivl instruction and using the results in eax and edx. I'd have been shocked if it didn't.
– Fred Larson
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How to find the JVM version from a program?
...nd JVM: com.intellij.idea.Main
Runtime Version: 1.8.0_91-b14
Found JVM: Test
Runtime Version: 1.7.0_80-b15
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