@coderlyn
iOS & dotnet developer - posting my learnings to help out future me!
Nothing here yet.
Nothing here yet.
Nov 15, 2025 · 1 min read · https://leetcode.com/problems/merge-strings-alternately/editorial/?source=submission-ac In swift, you cannot access characters by someString[3] It’s a big song and dance with getting a string index from the startIndex Once you have the start index,...
Join discussionNov 8, 2025 · 2 min read · Things I learnt: When there is mapping to be done, think about a DICTIONARY Here, we have to use the VALUES of the array, e.g. [1, 2, 3, 4] Figure out which numbers add up to 6 = 2 + 4 But we want to output the INDEX of the array So we need to m...
Join discussionAug 6, 2025 · 2 min read · If you are in the middle of having Swift five and six in your code base, then you will need to proactively deal with applying the main actor attribute to your Swift five code, so that it doesn't break when you upgrade to Swift six. This can happen if...
Join discussionFeb 19, 2025 · 4 min read · Design a reservation and payment system for a parking garage https://www.youtube.com/watch?v=NtMvNh0WFVM&list=PLrtCHHeadkHp92TyPt1Fj452_VGLipJnL I’m up to 4m01s Step 1: define the scope Clarifying questions I came up with <what do I call this catego...
Join discussionFeb 4, 2025 · 1 min read · Thoughts on what to discuss at each stage Step 1: narrow the scope Scale: how many users / traffic Security / Authentication: is this already in place? Data size: e.g. handling videos is different to images vs small data like credit card transacti...
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