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9 min readThe Average Directional Index, or ADX, is a technical indicator that helps traders identify the strength of a trend. Developed by J. Welles Wilder, it is used to assess the overall strength and potential continuation of a trend rather than its direction. The ADX is displayed as a single line on a chart, typically below the price plot.
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8 min readTo change build settings in a Swift library, you need to modify the project's build settings in Xcode. Here's how you can do it:Open your Swift library project in Xcode.Select the target for which you want to change the build settings. This is usually the one with the same name as your library.Click on the "Build Settings" tab in the project editor.In the search bar at the top, type the setting you want to change.
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10 min readSwing trading is a commonly used trading strategy where traders aim to capture short-to-medium-term price movements in the market. One popular indicator used in swing trading is the Simple Moving Average (SMA). The SMA calculates the average price of a security over a specified period and is plotted as a line on a price chart.To trade with the SMA for swing trading, traders typically follow these steps:Identify the trend: Start by identifying the overall trend of the market.
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4 min readTo load a label every second in Swift, you can use the Timer class to schedule a repeating task. Here's the code to achieve this: import UIKit class ViewController: UIViewController { @IBOutlet weak var label: UILabel! var timer: Timer? override func viewDidLoad() { super.viewDidLoad() startTimer() } func startTimer() { timer = Timer.
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7 min readTo open an .ics file in Swift, you can follow these steps:Retrieve the file URL of the .ics file you want to open. You can use Bundle.main.url(forResource:withExtension:) to get the URL of the file in your app's main bundle, or you can obtain it from any other source like the document directory or a remote location. Create an instance of String referencing the contents of the .ics file. You can use try? String(contentsOf: URL) to read the contents of the .ics file into a string. Parse the .
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9 min readThe Chaikin Oscillator is a technical analysis tool used by traders to measure the momentum of an asset's price. It helps them identify potential buy or sell signals in the market by analyzing the accumulation/distribution line (ADL) indicator.To use the Chaikin Oscillator, you need to follow these steps:Calculate the ADL: The ADL is derived by taking the difference between the asset's accumulation and distribution values.
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6 min readTo delete data from Firebase using Swift, follow these steps:Import the necessary Firebase libraries in your Swift file. import Firebase import FirebaseFirestore Get a reference to the Firebase Firestore database. let db = Firestore.firestore() Specify the document or collection that you want to delete. let docRef = db.collection("users").document("userID") // Replace "users" with your collection name and "userID" with the specific document ID you want to delete.
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7 min readThe Triple Exponential Average (TRIX) is a technical indicator used in technical analysis to identify and confirm trends in the price movements of financial assets such as stocks, currencies, or commodities. It attempts to smooth out the price data and provide a clearer picture of the underlying trend.TRIX is calculated using multiple exponential moving averages (EMAs) of the asset's price. Firstly, a single EMA is calculated for the asset's price.
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5 min readIn Swift, tuples are immutable, meaning their values cannot be changed once they are created. However, if you want to update a tuples array, you can reassign a modified tuple to the specific index in the array.
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7 min readTo create a many-to-many association using grdb in Swift, you can follow these steps:Define the tables: Start by defining the two tables you want to associate. Let's say we have a "User" table and a "Role" table. struct User: TableRecord { static let roleUsers = hasMany(RoleUser.self) } struct Role: TableRecord { static let roleUsers = hasMany(RoleUser.self) } struct RoleUser: TableRecord { static let role = belongsTo(Role.
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10 min readKeltner Channels are a technical indicator used in trading to identify potential buy or sell signals. They are derived from the Average True Range (ATR) and plotted above and below a moving average line. Keltner Channels are often used by scalpers, who aim to profit from small price movements within a short period of time.The Keltner Channels consist of three lines on a price chart: an upper band, a lower band, and a centerline.