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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 I get PHP errors to display?
... And if you are in nginx environment then add the php value to your site (sites-available) configuration under the location ~\.php directive. fastcgi_param PHP_VALUE " error_reporting=E_ALL;\n display_errors=1;";
– Lazaros Kosmidis
Oct 9 '18 at 7:25
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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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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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What is the list of supported languages/locales on Android?
...ali]
bn_BD [Bengali (Bangladesh)]
bn_IN [Bengali (India)]
bo_ [Tibetan]
bo_CN [Tibetan (China)]
bo_IN [Tibetan (India)]
br_ [Breton]
br_FR [Breton (France)]
brx_ [Bodo]
brx_IN [Bodo (India)]
bs_ [Bosnian]
bs_ [Bosnian (Cyrillic)]
bs_BA [Bosnian (Cyrillic,Bosnia and Herzegovina)]
bs_ [Bosnian (Latin)...
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...
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 ...
用户界面（UI）组件 · App Inventor 2 中文网
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日期选择框（DatePicker）
图像（Image）
TaifunImage 拓展：图像高级处理
SimpleBase64 拓展：图像Base64编解码
标签（Label）
列表选择器（ListPicker）
列表显示框（ListView）
对话框（Notifier）
密码...
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...
How to make a copy of a file in android?
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Kotlin extension for it
fun File.copyTo(file: File) {
inputStream().use { input ->
file.outputStream().use { output ->
input.copyTo(output)
}
}
}
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