angryziber

React vs Svelte

	React	Svelte
Since	2011 (before ES6)	2016 (after ES6)
Type	Library (slower)	Compiler (faster)
Reactivity	Hooks, runtime	Plain variables, compile-time
Virtual DOM (2 DOMs)	Yes	No
Performance	Mostly ok, DOM diffing, easy to screw up	Very fast by default
Memory usage	High	Low

petrbouda

Memory LIMIT and REQUEST in Containers and JVM

• Do you run a JVM inside a container on Kubernetes (or maybe OpenShift)?
• Do you struggle with REQUEST and LIMIT parameters?
• Do you know the impact of those parameters on your JVM?
• Have you met OOM Killer?

Hope you will find answers to these questions in this example-based article.

How to set up JVM Heap size in a Container

mujahidk

def text = "Going to convert this to Base64 encoding!"

// Encode
def encoded = text.bytes.encodeBase64().toString()
println encoded


// Decode
byte[] decoded = encoded.decodeBase64()
println new String(decoded)

jagdeepsingh

Apple Pay on Web (iPhone)

Contents:

1. Guidelines for using Apple Pay
2. Setup merchant account on Apple
3. Create merchant session
4. Setup Apple Pay on customer iPhone
5. Extract payment token from Apple Pay response

geoand

tailrec fun <T : Comparable<T>> binarySearch(list: List<T>, item: T, startIndex: Int = 0, endIndex: Int = list.size - 1): Int {
    if (endIndex < startIndex ) {
        return -1
    } else if (startIndex == endIndex) {
        return if (item == list[startIndex]) startIndex else -1
    } else if (endIndex == startIndex + 1) {
        if (list[startIndex] == item) {
            return startIndex
        }
        else if(list[endIndex] == item) {

MichaelRocks

/*
 * Copyright 2015 Michael Rozumyanskiy
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

welshstew

// Simple groovy script to compress / decompress Strings
import java.util.zip.GZIPInputStream
import java.util.zip.GZIPOutputStream

def zip(String s){
	def targetStream = new ByteArrayOutputStream()
	def zipStream = new GZIPOutputStream(targetStream)
	zipStream.write(s.getBytes('UTF-8'))
	zipStream.close()
	def zippedBytes = targetStream.toByteArray()

takscape

import java.math.BigInteger
import kotlin.math.plus

fun main(args: Array<String>) {
    fibo().take(10).forEach { println(it.first) }
}

private fun fibo() =
    stream(BigInteger.ZERO to BigInteger.ONE, {(e) ->
        e.second to (e.first plus e.second)

gitaarik

Git Submodules basic explanation

Why submodules?

In Git you can add a submodule to a repository. This is basically a repository embedded in your main repository. This can be very useful. A couple of usecases of submodules:

• Separate big codebases into multiple repositories.

shawnbot

Finding the Simulator

You can test with the iOS Simulator that comes with Xcode. Navigate to the Xcode app in the Finder, right click and select "Show Package Contents":

Then navigate to Contents > Applications, and open the shortcut to "iPhone Simulator" (it may be called "iOS Simulator" depending on which version of Xcode you're running):