lycaste

import React from 'react'
import { render } from 'react-dom'

// with fiber, we'll be able to write components that update text deep 
// inside another string without wrapper dom, or rerendering the whole component 

// before
class Lorem extends React.Component {
  state = {
    str: ''

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function reducer(state, action) {
  if (action.type === 'INCREMENT') {
    return state + action.amount;
  } else if (action.type === 'DECREMENT') {
    return state - action.amount;
  } else {
    return state;
  }
}

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// 大家写在评论中吧，代码高亮可以这样写：
// ```js
// your code
// ```

// update: Fri Aug 31 08:39:21
// copyright: https://gist.github.com/3549352
// 加个性能测试：http://jsperf.com/get-dom-s-first-element

var util = {};

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//
//  SpinlockTestTests.swift
//  SpinlockTestTests
//
//  Created by Peter Steinberger on 04/10/2016.
//  Copyright © 2016 PSPDFKit GmbH. All rights reserved.
//

import XCTest

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// Paste me into a playground!

import Cocoa

//: # Basic Setup

protocol FancyProtocol {
    associatedtype Thing
    func holdPinkyUp(x: Thing)
}

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删除所有微博

在Chrome Dev Tools中粘贴代码到Console，就可以删除当前屏幕所有微博。经过测试一万条微博大约需要10小时的半人工操作。

每批删除大概一分钟，最多50条。

如果遇到微博的Rate limit（提示操作过快），稍等三五分钟再试即可。

lycaste

UnsafeRawPointer Migration

Notes

Swift 3 introduces an UnsafeRawPointer type and enforces type safety with respect to unsafe pointer conversions.

• SE-0107

  An Unsafe[Mutable]RawPointer type has been introduced. It replaces Unsafe[Mutable]Pointer. Conversion from

lycaste

import Foundation

struct P : CustomStringConvertible {
    var p: OpaquePointer?

    init(_ p: OpaquePointer?) {
        self.p = p
    }
    
    var description: String {

lycaste

static NSData *PSPDFCalculateSHA256FromFileURL(NSURL *fileURL, CC_LONG dataLength, NSError **error) {
    NSCParameterAssert(fileURL);

    dispatch_queue_t shaQueue = dispatch_queue_create("com.pspdfkit.sha256-queue", DISPATCH_QUEUE_SERIAL);
    __block dispatch_io_t readChannel;

    void (^processIntError)(int intError) = ^(int intError) {
        if (intError != 0) {
            PSPDFLogWarning(@"Stream error: %d", intError);
            if (error) *error = [NSError errorWithDomain:@"SHA256Error" code:100 userInfo:@{NSLocalizedDescriptionKey: @"failed to open file for calculating SHA256."}];

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#define PSCCAssert(condition, description, ...) \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Wnullable-to-nonnull-conversion\"") \
NSCAssert(condition, description, ##__VA_ARGS__) \
_Pragma("clang diagnostic pop")

#define PSCWeakifyAs(object, weakName) typeof(object) __weak weakName = object

void (^psc_targetActionBlock(id target, SEL action))(id) {
    // If there's no target, return an empty block.