yzhong52

In regular python array, a slice view of an array is actually a copy. Modifiying elements through the slice won't affect the original array.

>>> arr = [0, 1, 2]
>>> arr[0:][0] = 100
>>> arr
[0, 1, 2]

yzhong52

// TODO: update the API key
private let apiKey: String = "c8707b3709a34bbe90837f63c71537ed"
private let path: String = "https://newsapi.org/v2/top-headlines?apiKey=\(apiKey)&country=us"

enum ClientError: Error {
    case missingResponseData
}

class NewsClient {
    func headlines() -> Single<ArticlesResponse> {

yzhong52

import numpy as np
def read_obj(filename):
    triangles = []
    vertices = []
    with open(filename) as file:
        for line in file:
            components = line.strip(' \n').split(' ')
            if components[0] == "f": # face data
                # e.g. "f 1/1/1/ 2/2/2 3/3/3 4/4/4 ..."
                indices = list(map(lambda c: int(c.split('/')[0]) - 1, components[1:]))

yzhong52

vertices, triangles = read_obj("teapot.obj")
x = vertices[:,0]
y = vertices[:,1]
z = vertices[:,2]
ax = plt.axes(projection='3d')
ax.set_xlim([-3, 3])
ax.set_ylim([-3, 3])
ax.set_zlim([0, 3])
ax.plot_trisurf(x, z, triangles, y, shade=True, color='white')

yzhong52

extension ViewController: UITableViewDataSource {
    func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }

    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return articles.count
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

yzhong52

extension ViewController: UITableViewDelegate {
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        let article = articles[indexPath.row]
        present(SFSafariViewController(url: article.url), animated: true, completion: nil)
    }
}

yzhong52

import UIKit
import RxSwift
import SafariServices
class ViewController: UIViewController {
    
    private let disposeBag = DisposeBag()
    private let client = NewsClient()
    
    private var articles: [Article] = []
    

yzhong52

import Foundation

class Article: Decodable {
    let title: String
    let description: String?
    let url: URL
    let urlToImage: String?
    let content: String?
}

yzhong52

import UIKit
import RxSwift

class ViewController: UIViewController {
    private let disposeBag = DisposeBag()
    private let client = NewsClient()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        client.headlines().subscribe(onSuccess: { (response) in

yzhong52

import UIKit

class NewsTableViewCell: UITableViewCell {

    let titleLabel: UILabel = {
        let lable = UILabel()
        lable.translatesAutoresizingMaskIntoConstraints = false
        lable.numberOfLines = 3
        lable.font = UIFont.systemFont(ofSize: 14)
        return lable