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HTML Import caching will sometimes mean that changes made to HTML files that get imported do not get reflected upon browser refresh. Take the following import as an example: <link rel="import" href="./my-element.html"> If a change is done to my-element.html after previo...

In InnoDB, having a long PRIMARY KEY (either a single column with a lengthy value, or several columns that form a long composite value) wastes a lot of disk space. The primary key value for a row is duplicated in all the secondary index records that point to the same row. Create an AUTO_INCREME...

The Ruby Version Manager is a command line tool to simply install and manage different versions of Ruby. rvm istall 2.3.1 for example installs Ruby version 2.3.1 on your machine. With rvm list you can see which versions are installed and which is actually set for use. user@dev:~$ rvm li...

Method 1: proc sql; create table foo like sashelp.class; quit; Method 2: proc sql; create table bar as select * from sashelp.class (obs=0); quit; Method 1 should be the preferred option

just execute uname -a. On Arch: $ uname -a Linux nokia 4.6.4-1-ARCH #1 SMP PREEMPT Mon Jul 11 19:12:32 CEST 2016 x86_64 GNU/Linuxenter code here

Most of linux distros stores its version info in the /etc/lsb-release (debian) or /etc/redhat-release (RPM based) file. Using below generic command should get you past most of the Debian and RPM derivatives as Linux Mint and Cent-Os. Example on Ubuntu Machine: cat /etc/*release DISTRIB_ID=Ubuntu ...

val allowedUsers = users.filter { it.age > MINIMUM_AGE }

val isOfAllowedAge = { user: User -> user.age > MINIMUM_AGE } val allowedUsers = users.filter(isOfAllowedAge)

Mongoose connect has 3 parameters, uri, options, and the callback function. To use them see sample below. var mongoose = require('mongoose'); var uri = 'mongodb://localhost:27017/DBNAME'; var options = { user: 'user1', pass: 'pass' } mongoose.connect(uri, options, function(err){...

The Task object is an object like any other if you take away the async-await keywords. Consider this example: public async Task DoStuffAsync() { await WaitAsync(); await WaitDirectlyAsync(); } private async Task WaitAsync() { await Task.Delay(1000); } private Task WaitDire...

By default, all the controllers you generate with Symfony's built-in generate:controller command will make use of Symfony annotations for routing: namespace AppBundle\Controller; // You have to add a use statement for the annotation use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route; ...

JSON is a very strict format (see http://json.org). That makes it easy to parse and write for machines but surprises humans when an inconspicuous mistakes breaks the document. Common Problems Trailing Comma Unlike most programming languages your are not allowed to add a trailing comma: { a: 1...

@IBAction func axisChange(sender: UISwitch) { UIView.animateWithDuration(1.0) { self.updateConstraintsForAxis() } } The updateConstraintForAxis function just sets the axis of the stack view containing the two image views: private func updateConstraintsForAxis() { if (axi...

The simple use-case is to refer to a single icon in its normal size: <i class="fa fa-camera-retro"></i> (View result in this fiddle.) Create an empty tag (it is recommended to use <i> used for that) and assign class "fa" and the class corresponding to the desi...

To restore a file to the latest updated svn version, i.e. undo the local changes, you can use revert: svn revert file To restore a file to an older version (revision XXX) use update: svn update -r XXX file Warning: in both cases you will lose any local changes in the file because it will be ...

Font icons are usually placed inside a <i> tag. Ionic has default css styles for the icons for easy use. The most basic example of use: <i class="icon ion-home"></i>

In this example I define two custom function. 1 - countryFilter function get's the country short code as input and return the country full name. 2 - _countPrinterTasks is used to calculate the no of tasks assigned to a particular user. <?php namespace DashboardBundle\Twig\Extension; use ...

Assume having a method returning IEnumerable<T>, f.e. private IEnumerable<T> GetData() { try { // return results from database } catch(Exception exception) { throw; } } Creates an Observable and starts a method asynchronously. Sel...

Visual Studio (IDE) WPA (performance analyzer) WinDbg (debugger) IDA Pro (disassembler) dotPeek (decompiler for .NET) WinMerge (diff tool) HxD or 010 editor (hex editor) Speedcrunch (calculator) Firefox (browser) Rohitab API monitor (API call monitoring) SOS (a WinDbg extension for .NET)...

/* The result can be use for fast way to use columns on Insertion/Updates. Works with tables and views. Example: eTableColumns 'Customers' ColumnNames ------------------------------------------------------ Id, FName, LName, Email, PhoneNumber, PreferredContact INSERT INTO Customers (Id, ...