初登場するコマンド: init, add, commit, log, config, status, diff
Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
This was nice and fast... but it takes up WAY TOO MUCH space. And it's annoying to write. | |
(I like the way I can just step into the function that calls the delegate for debugging) | |
What's a better way to not make me call respondsToSelector in the middle of my code? Some proxy? | |
struct { | |
unsigned int delegateWillDisplayDocument:1; | |
unsigned int delegateDidDisplayDocument:1; | |
unsigned int delegateDidShowPageView:1; | |
unsigned int delegateDidRenderPageView:1; |
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CorePlotを使う上でのTipsをまとめていきます。随時更新。
###データを更新する
- (void) reloadGraphData:(CPTGraph*)graph
{
// データ取得の各種delegateが実行される。
// graphに加えた表示上の変更はこれを実行しなくても即座に反映される。
// | |
// SpinlockTestTests.swift | |
// SpinlockTestTests | |
// | |
// Created by Peter Steinberger on 04/10/2016. | |
// Copyright © 2016 PSPDFKit GmbH. All rights reserved. | |
// | |
import XCTest |
This is a curated list of iOS (Swift & ObjC) frameworks which are inspired by React and Elm.
- ReactSwift by @ColinEberhardt
- https://github.com/ColinEberhardt/ReactSwift
import Foundation | |
import PlaygroundSupport | |
PlaygroundPage.current.needsIndefiniteExecution = true | |
class A: NSObject { | |
let name: String | |
var callback: (() -> ())? | |
func funcDo() {} |
If you haven’t worked with JavaScript in the last few years, these three points should give you enough knowledge to feel comfortable reading the React documentation:
- We define variables with
let
andconst
statements. For the purposes of the React documentation, you can consider them equivalent tovar
. - We use the
class
keyword to define JavaScript classes. There are two things worth remembering about them. Firstly, unlike with objects, you don't need to put commas between class method definitions. Secondly, unlike many other languages with classes, in JavaScript the value ofthis
in a method [depends on how it is called](https://developer.mozilla.org/en-US/docs/Web/Jav