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RegEx to parse or validate Base64 data
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The best regexp which I could find up till now is in here
https://www.npmjs.com/package/base64-regex
which is in the current version looks like:
module.exports = function (opts) {
opts = opts || {};
var regex = '(?:[A-Za-z0-9+\/]{4}\\n?)*(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3...
getApplicationContext(), getBaseContext(), getApplication(), getParent()
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
What is a good use case for static import of methods?
...ability; if you need only one or two members, import them individually.
(https://docs.oracle.com/javase/8/docs/technotes/guides/language/static-import.html)
There are two parts I want to call out specifically:
Use static imports only when you were tempted to "abuse inheritance". In this case, w...
Input placeholders for Internet Explorer
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Best one in my experience is https://github.com/mathiasbynens/jquery-placeholder (recommended by html5please.com). http://afarkas.github.com/webshim/demos/index.html also has a good solution among its much more extensive library of polyfills.
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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
...00001-B5A3-F393-E0A9-E50E24DCCA9E。标准16位UUID技术文档请参考：https://www.bluetooth.com/specifications/assigned-numbers/。
点此自助购买 以上演示的aia源码。BLE专业文档更多关于BLE更深入的技术原理介绍，请参考BLE技术揭秘。
最后做个推广即...
Install a Python package into a different directory using pip?
...ollowing works well (from discussion on a bug regarding this very thing at https://github.com/pypa/pip/issues/446):
PYTHONUSERBASE=/path/to/install/to pip install --user
(Or set the PYTHONUSERBASE directory in your environment before running the command, using export PYTHONUSERBASE=/path/to/insta...
How to support UTF-8 encoding in Eclipse
...tart Eclipse, it should adhere to UTF-8 as the default character set.
See https://docs.oracle.com/javase/8/docs/technotes/guides/troubleshoot/envvars002.html
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cancelling queued performSelector:afterDelay calls
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do I enable MSDTC on SQL Server?
...op up about restarting the service.
Click OK and That's all.
Reference : https://msdn.microsoft.com/en-us/library/dd327979.aspx
Note: Sometimes the network firewall on the Local Computer or the Server could interrupt your connection so make sure you create rules to "Allow Inbound" and "Allow Out...
How can I implement a tree in Python?
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anytree
I recommend https://pypi.python.org/pypi/anytree (I am the author)
Example
from anytree import Node, RenderTree
udo = Node("Udo")
marc = Node("Marc", parent=udo)
lian = Node("Lian", parent=marc)
dan = Node("Dan", parent=udo)
jet = Node(...