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How can I find the length of a number?
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Ok, so many answers, but this is a pure math one, just for the fun or for remembering that Math is Important:
var len = Math.ceil(Math.log(num + 1) / Math.LN10);
This actually gives the "length" of the number even if it's in exponential form. num is supposed to be a non negative integ...
How do you log server errors on django sites
...here is a bit of work involved in setting it up properly (as a separate website). If you just want to log everything to a simple text file here's the logging configuration to put in your settings.py
LOGGING = {
'version': 1,
'disable_existing_loggers': False,
'handlers': {
# Inc...
Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]
... easiest ones (or at least quickest) broken.
UPDATE: CAPTCHA Killer's website is now taken down, apparently under legal pressure. See http://captcha.org/ for a complete overview of the topic.
And yeah, OCR is not the best way to break a CAPTCHA protected site - there are many other better ways.
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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...actually built with a cloud in mind. You can check the feature list on the site.
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扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...馈 我要反馈 var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?8d287b854d737bdc880e8ddeac1b309d"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertB...
Detect if Android device has Internet connection
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@varunbhardwaj you can just take a different website (e.g. baidu.com when deploying your app in China), or you can try a second site if the first one fails to make sure there is no connection.
– THelper
Mar 29 '12 at 11:10
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Python strptime() and timezones?
..., line 1, in <module> File "/Users/wanghq/awscli/lib/python2.7/site-packages/dateutil/parser.py", line 748, in parse return DEFAULTPARSER.parse(timestr, **kwargs) File "/Users/wanghq/awscli/lib/python2.7/site-packages/dateutil/parser.py", line 310, in parse res, skipped_token...
Android: Difference between Parcelable and Serializable?
...n let’s take an example of how to
convert a JSON to object and back
fun toObject(stringValue: String): Field {
return JSON.parse(Field.serializer(), stringValue)
}
fun toJson(field: Field): String {
//Notice we call a serializer method which is autogenerated from our ...
How do I alias commands in git?
...ff
ll = log --pretty=format:"%C(yellow)%h%Cred%d\\ %Creset%s%Cblue\\ [%cn]" --decorate --numstat
ld = log --pretty=format:"%C(yellow)%h\\ %C(green)%ad%Cred%d\\ %Creset%s%Cblue\\ [%cn]" --decorate --date=short --graph
ls = log --pretty=format:"%C(green)%h\\ %C(yellow)[%ad]%Cred%d\\ %Crese...
How can I get the current page's full URL on a Windows/IIS server?
... in the VirtualHost because I want that to be the canonical form of the website. The $_SERVER['HTTP_HOST'] is set based on the request headers. If the server responds to any/all domain names at that IP address, a user could spoof the header, or worse, someone could point a DNS record to your IP addr...