avidLearnerInProgress

List of list by LeetCode user @deepika135

• DP for beginners by @wh0ami - https://leetcode.com/discuss/general-discussion/662866/dp-for-beginners-problems-patterns-sample-solutions || [LIST - https://leetcode.com/list/x1k8lxi5]
• Graph for beginners by @wh0ami - https://leetcode.com/discuss/general-discussion/655708/graph-for-beginners-problems-pattern-sample-solutions/562734 || [LIST - https://leetcode.com/list/x1wy4de7]
• Sliding window for beginners by @wh0ami - https://leetcode.com/discuss/general-discussion/657507/sliding-window-for-beginners-problems-template-sample-solutions/562721 || [LIST - https://leetcode.com/list/x1lbzfk3]
• DP Patterns by @aatalyk - https://leetcode.com/discuss/general-discussion/458695/dynamic-programming-patterns Leetcode patterns from edu_cative_dot_io by @late_riser - https://leetcode.com/discuss/general-discussion/457546/LeetCode-Problem-Patterns-from-***
• List of questions sorted by common patterns by @Maverick2594 - https://leetcode.com/discuss/career/448285/List-of-q

marcetcheverry

extension String {
    /// Using regular expressions is not a correct approach for converting HTML to text, there are many pitfalls, like handling <style> and <script> tags. On platforms that support Foundation, one alternative is to use NSAttributedString's basic HTML support. Care must be taken to handle extraneous newlines and object replacement characters left over from the conversion process. It is a good idea to cache complex generated NSAttributedStrings either through storage or NSCache.
    func strippingHTML() throws -> String?  {
        if isEmpty {
            return nil
        }
        
        if let data = data(using: .utf8) {
            let attributedString = try NSAttributedString(data: data,
                                                          options: [.documentType : NSAttributedString.DocumentType.html,

jaredsinclair

/// Quick-n-dirty translation of MWFeedParser's algorithm from Objective-C to Swift
/// seealso: https://github.com/mwaterfall/MWFeedParser/blob/master/Classes/NSString%2BHTML.m
public extension NSString {
    
    public func byConvertingHTMLToPlainText() -> String {
        
        let stopCharacters = CharacterSet(charactersIn: "< \t\n\r\(0x0085)\(0x000C)\(0x2028)\(0x2029)")
        let newLineAndWhitespaceCharacters = CharacterSet(charactersIn: " \t\n\r\(0x0085)\(0x000C)\(0x2028)\(0x2029)")
        let tagNameCharacters = CharacterSet(charactersIn: "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
        

fuxingloh

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
    let text = collections[indexPath.row].name
    let width = UILabel.textWidth(font: titleFont, text: text)
    return CGSize(width: width + left + right, height: height)
}

sheharyarn

/**
 * Axios Request Wrapper
 * ---------------------
 *
 * @author  Sheharyar Naseer (@sheharyarn)
 * @license MIT
 *
 */

import axios     from 'axios'

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

onevcat

private class Block<T> {
    let f : T
    init (_ f: T) { self.f = f }
}

extension NSTimer {
    static func xxx_scheduledTimerWithTimeInterval(ti: NSTimeInterval, block: ()->(), repeats: Bool) -> NSTimer {
        return self.scheduledTimerWithTimeInterval(ti, target:
            self, selector: "xxx_blcokInvoke:", userInfo: Block(block), repeats: repeats)
    }

mwaterfall

// Very slightly adapted from http://stackoverflow.com/a/30141700/106244
// 99.99% Credit to Martin R!

// Mapping from XML/HTML character entity reference to character
// From http://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references
private let characterEntities : [String: Character] = [
    
    // XML predefined entities:
    """     : "\"",
    "&"      : "&",