Tutorial by Examples: me

As edgeapi suggests, it provides an interface for protecting attributes from end-user assignment. This makes Action Controller parameters forbidden to be used in Active Model mass assignment until they have been whitelisted. In addition, parameters can be marked as required and flow through a prede...

There are several ways interact with an Xml file. Xml Document XDocument XmlReader/XmlWriter Before LINQ to XML we were used XMLDocument for manipulations in XML like adding attributes, elements and so on. Now LINQ to XML uses XDocument for the same kind of thing. Syntaxes are much easie...

use Time::HiRes qw( time ); my $start = time(); #Code for which execution time is calculated sleep(1.2); my $end = time(); printf("Execution Time: %0.02f s\n", $end - $start); This will print execution time of Code in seconds

import redis r = redis.StrictRedis(host='localhost', port=6379, db=0) r.lpush('myqueue','myelement')

To receive messages, use a service that extends FirebaseMessagingService and override the onMessageReceived method. public class MyFcmListenerService extends FirebaseMessagingService { /** * Called when message is received. * * @param remoteMessage Object representing t...

Redis supplies the SISMEMBER command to test if a particular item is already a member of a set. Using the SISMEMBER command I can test and see if apple is already a member of my fruit set. If I construct my fruit set from the previous example, I can check and see if it contains apple using the fol...

The simpler way to use Bash in Windows is to install Git for Windows. It's shipped with Git Bash which is a real Bash. You can access it with shortcut in : Start > All Programs > Git > Git Bash Commands like grep, ls, find, sed, vi etc is working.

Quicksort is one of the advanced algorithms. It features a time complexity of O(n log n) and applies a divide & conquer strategy. This combination results in advanced algorithmic performance. Quicksort first divides a large array into two smaller sub-arrays: the low elements and the high element...

This approach will prevent a user from embedding a second SQL statement in their input for execution. Dim strSQL As String Dim db As DAO.Database Dim qdf As DAO.QueryDef strSQL = "PARAMETERS [FirstName] Text(255), [LastName] Text(255), [Phone] Text(255); " _ & "INS...

Timeout The simplest way to make a delay or pause for a certain amount of time, is with the standard command TIMEOUT. To make a timeout that lasts exactly one minute we type: timeout /t 60 Now what is going on here? First off we use the command TIMEOUT with the parameter /T (which simply mea...

(clj-time/date-time 2017 1 20) Gives you a Joda time of 20th Jan 2017 at 00:00:00. Hours, minutes and seconds can also be specified as (clj-time/date-time year month date hour minute second millisecond)

Scala supports lazy evaluation for function arguments using notation: def func(arg: => String). Such function argument might take regular String object or a higher order function with String return type. In second case, function argument would be evaluated on value access. Please see the example...

extension Dictionary { func merge(dict: Dictionary<Key,Value>) -> Dictionary<Key,Value> { var mutableCopy = self for (key, value) in dict { // If both dictionaries have a value for same key, the value of the other dictionary is used. mu...

public static void applyFontToMenu(Menu m, Context mContext){ for(int i=0;i<m.size();i++) { applyFontToMenuItem(m.getItem(i),mContext); } } public static void applyFontToMenuItem(MenuItem mi, Context mContext) { if(mi.hasSubMenu()) for(int i=0;i<mi.getSubMenu...

Package Control GitHub Repo Open whichever package's README. Compatible with both ST2 and ST3

I use Spring Boot 1.4.4.RELEASE , with MySQL as the Database and Spring Data JPA abstraction to work with MySQL. Indeed ,it is the Spring Data JPA module that makes it so easy to set up Pagination in a Spring boot app in the first place. Scenario expose an endpoint /students/classroom/{id} . It wi...

In a basic implementation the task module must define a run/1 function that takes a list of arguments. E.g. def run(args) do ... end defmodule Mix.Tasks.Example_Task do use Mix.Task @shortdoc "Example_Task prints hello + its arguments" def run(args) do IO.puts "Hello ...

Create setup script ~/.perlbrew.sh: # Reset any environment variables that could confuse `perlbrew`: export PERL_LOCAL_LIB_ROOT= export PERL_MB_OPT= export PERL_MM_OPT= # decide where you want to install perlbrew: export PERLBREW_ROOT=~/perlbrew [[ -f "$PERLBREW_ROOT/etc/bashrc" ]...

Caveat: alloca is only mentioned here for the sake of completeness. It is entirely non-portable (not covered by any of the common standards) and has a number of potentially dangerous features that make it un-safe for the unaware. Modern C code should replace it with Variable Length Arrays (VLA). Ma...

package main import ( "k8s.io/kubernetes/pkg/api" unver "k8s.io/kubernetes/pkg/api/unversioned" "k8s.io/kubernetes/pkg/apis/extensions" "k8s.io/kubernetes/pkg/client/restclient" client "k8s.io/kubernetes/pkg/client/unversioned&...