Components let you split the UI into independent, reusable pieces. This is the beauty of React; we can separate a page into many small reusable components.
Prior to React v14 we could create a stateful React component using React.Component (in ES6), or React.createClass (in ES5), irrespective of wh...
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
If you installed Laravel via Composer or the Laravel installer, below configuration you will need.
Configuration for Apache
Laravel includes a public/.htaccess file that is used to provide URLs without the index.php front controller in the path. Before serving Laravel with Apache, be sure to enabl...
The first code block is written in Bootstrap 3. In Bootstrap 3 there are 4 types of column specifications, namely col-md-* col-lg-* col-sm-* col-xs-* . A fully responsive layout will look like this in Bootstrap 3:
<div class="row">
<div class="col-lg-4 col-md-8 col-sm-8...
Scala packages should follow the Java package naming conventions.
Package names are written in all lower case to avoid conflict with the names of classes or interfaces.
Companies use their reversed Internet domain name to begin their package names—for example,
io.super.math
Use Enum.chunk/2 to group elements into sub-lists, and Map.new/2 to convert it into a Map:
[1, 2, 3, 4, 5, 6]
|> Enum.chunk(2)
|> Map.new(fn [k, v] -> {k, v} end)
Would give:
%{1 => 2, 3 => 4, 5 => 6}
Android now supports devices with 512MB of RAM. This documentation is intended to help OEMs optimize and configure Android 4.4 for low-memory devices. Several of these optimizations are generic enough that they can be applied to previous releases as well.
Enable Low Ram Device flag
We are introduc...
Swift 3
Serial Queue
func serialQueues () {
let serialQueue = DispatchQueue(label: "com.example.serial") //default queue type is a serial queue
let start = Date ()
for i in 0...3 { //launch a bunch of tasks
serialQueue.a...
Redis provides seven different operations for working with scripts:
Eval operations (EVAL, EVALSHA)
SCRIPT operations (DEBUG, EXISTS, FLUSH, KILL, LOAD)
The EVAL command evaluates a script provided as a string argument to the server. Scripts can access the specified Redis keys named as argum...
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 is the typical approach for novice developers building SQL action queries. They are vulnerable to the Bobby Tables type SQL Injection attacks.
Dim strSQL As String
strSQL = "INSERT INTO Employees chrFirstName, chrLastName, chrPhone " _
& "VALUES ('" & M...
// create the dictionary that will be sent to the blocks
var myDictionary:Dictionary<String, Any> = Dictionary<String, Any>()
myDictionary["InitialKey"] = "InitialValue"
// create block queue
let myBlockQueue:MKBlockQueue = MKBlockQueue()
// block 1
let b1...
In the tsconfig.json set
"sourceMap": true,
to generate mappings alongside with js-files from the TypeScript sources using the tsc command.
The launch.json file:
{
"version": "0.2.0",
"configurations": [
{
"type"...
Add ts-node to your TypeScript project:
npm i ts-node
Add a script to your package.json:
"start:debug": "ts-node --inspect=5858 --debug-brk --ignore false index.ts"
The launch.json needs to be configured to use the node2 type and start npm running the start:debug script:
...
Even though colorblind people can recognize a wide range of colors, it might be hard to differentiate between certain colors.
RColorBrewer provides colorblind-friendly palettes:
library(RColorBrewer)
display.brewer.all(colorblindFriendly = T)
The Color Universal Design from the University ...
