Jul 14, 2024 iOS

20 Key Coding Patterns That Will Guide You Through

20 Key Coding Patterns That Will Guide You Through Anyone can master these incredible algorithmic strategies and really excel in coding interviews by using roughly 20 of these coding issue patterns that are compiled here. The idea behind these patterns…

Jun 29, 2024 dsa

Given an integer array nums, return all the triplets

 3Sum Given an integer array nums, return all the triplets [nums[i], nums[j], nums[k]] such that i != j, i != k, and j != k, and nums[i] + nums[j] + nums[k] == 0. Notice that the solution set must not contain duplicate triplets. Example 1: Input:…

Jun 28, 2024 iOS

Best Time to Buy and Sell Stock

Best Time to Buy and Sell Stock You are given an array prices where prices[i] is the price of a given stock on the ith day. You want to maximize your profit by choosing a single day to buy one stock and choosing a different day in the future to…

Jun 28, 2024 dsa

Valid Parentheses

Valid Parentheses Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: Open brackets must be closed by the same type of brackets. Open brackets must be closed in the correct…

Jun 27, 2024 iOS

Two Sum

1. Two Sum Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each input would have exactly one solution, and you may not use the same element twice. You can return…

May 12, 2024 iOS

How to tell SwiftUI views to bind to nested ObservableObjects

In SwiftUI, you can bind views to nested ObservableObjects by passing those objects down through the view hierarchy. This allows child views to access and modify the properties of the nested observable objects. Here's a step-by-step guide: 1.Define Your ObservableObject…

May 11, 2024 iOS

How to hide keyboard when using SwiftUI?

In SwiftUI, you can hide the keyboard by resigning the first responder status of the current text field. There are a few ways to accomplish this: 1.Using UIApplication.shared.sendAction(_:to:from:for:): You can use the UIApplication method sendAction(_:to:from:for:) to send the resignFirstResponder action…

May 10, 2024 iOS

Load and navigating to next screen not working when coming back to screen in swiftui

Certainly! It seems like you’re facing an issue with navigation in SwiftUI when coming back from a subsequent screen. Let’s explore some possible solutions to address this problem: NavigationLink Approach: If you’re using NavigationLink to navigate to the next screen, ensure that…