navigator.mediaDevices is the common method adapted in Chrome and FF to getUserMedia as of now.
A promised based call back which returns local stream on success
navigator.mediaDevices.getUserMedia({ audio: true, video: true })
.then(stream => {
// attach this stream to window obje...
Open your jenkins instance script console http://yourJenkins:port/script
following is an example for how to get information about this instance. copy the code to the console and click "Run".
/* This scripts shows how to get basic information about Jenkins instance */
def jenkins = Jenki...
A Java 8 compatibility kit for Scala.
Most examples are copied from Readme
Converters between scala.FunctionN and java.util.function
import java.util.function._
import scala.compat.java8.FunctionConverters._
val foo: Int => Boolean = i => i > 7
def testBig(ip: IntPredicate) = ip.tes...
To access the Open Resource dialog use Ctrl + Shift + R.
From here you can start typing a resource name and it will find all matches in the workspace, this makes it easier to find a file when you don't know exactly were it is.
If you have modifications to share or just want to try new version in development.
$ hg clone https://bitbucket.org/scons/scons
$ python scons/src/script/scons.py
There will be times where you only want to import a specific sheet from an excel file with multiple sheets. To do that, we'll use "SHEET=".
PROC IMPORT
OUT= YourNewTable
DATAFILE= "myfolder/excelfilename.xlsx"
DBMS=xlsx
REPLACE;
SHEET="Sheet1&quo...
Sometimes Android's logcat is running infinitely with errors coming from some process not own by you, draining battery or just making it hard to debug your code.
A convenient way to fix the problem without restarting the device is to locate and kill the process causing the problem.
From Logcat
03...
You can use Scan or TryScan methods to look for specific messages in the queue and process them regardless of how many messages are before them. Both methods look at the messages in the queue in the order they arrived and will look for a specified message (up until optional timeout). In case there i...
Let's define a grammar enabling us to perform additions, multiplications with the usage of parenthesis. To add more value to this example, we are going to compute the result of the arithmetic expression. Summary of the grammar:
expression → times
expression → times '+' expression
times → elemen...
Working Example: https://jsfiddle.net/Twisty/4f5yh3pa/7/
Cancelling and Reverting a sortable is not strongly documented. The helps show how moving an item from one list to another connected list can be conditionally cancelled. by default, this is not animated by sortable, this example includes an a...
To count the occurences of a value in a numpy array. This will work:
>>> import numpy as np
>>> a=np.array([0,3,4,3,5,4,7])
>>> print np.sum(a==3)
2
The logic is that the boolean statement produces a array where all occurences of the requested values are 1 and all o...
Note: For brevity, the commands use here-strings (<<<) and ANSI C-quoted strings ($'...'). Both these shell features work in bash, ksh, and zsh.
# GNU Sed
$ sed ':a;$!{N;ba}; s/\n/\t/g' <<<$'line_1\nline_2\nline_3'
line_1 line_2 line_3
# BSD Sed equivalent (multi-line form)
...
If you care about your indices (yes, that's the plural of index), you should maintain them, especially if you do frequent inserts or deletes that affect them.
Azure Automation provides an almost ready runbook that you can use and schedule to perform automated index rebuilding. Here's what you have ...
How to center an element, column, or content inside a column works differently in Bootstrap 4.
Horizontal Center
text-center is still used for display:inline elements
mx-auto replaces center-block to center display:block elements
offset-* or mx-auto can be used to center grid columns
mx-aut...
Spacemacs (http://spacemacs.org/) is a variant of Emacs that attempts to end the long-term conflict between Emacs and vim users, by making an Emacs that behaves like vim.
In Sprite-Kit, there is the concept of collisions which refers to the SK physics engine handling how physics objects interact when they collide i.e. which ones bounce off which other ones.
It also has the concept of contacts, which is the mechanism by which your program gets informed when 2 physics...
Animation below shows what is happening when you use IDataInput interface methods to access data form ByteArray and other classes which implement this interface.
