Google Engineering Level: L6+
Ranking #Dev: Global TOP 300 (Certificate)
Languages: Swift, Shell, Database (T-SQL, PL/SQL, MySQL), Concurrency (Python3).
Algorithms: linked lists, binary search, hash table, queue/stack, dfs/bfs, sort, heap/hash, two pointers, sliding window, tree, greedy problems etc.
The builder pattern is used to create complex objects with constituent parts that must be created in the same order or using a specific algorithm. An external class controls the construction algorithm.
final class DeathStarBuilder {
var x: Double?
var y: Double?
var z: Double?
typealias BuilderClosure = (DeathStarBuilder) -> ()
init(buildClosure: BuilderClosure) {
buildClosure(self)
}
}
struct DeathStar : CustomStringConvertible {
let x: Double
let y: Double
let z: Double
init?(builder: DeathStarBuilder) {
if let x = builder.x, let y = builder.y, let z = builder.z {
self.x = x
self.y = y
self.z = z
} else {
return nil
}
}
var description:String {
return "Death Star at (x:\(x) y:\(y) z:\(z))"
}
}
let empire = DeathStarBuilder { builder in
builder.x = 0.1
builder.y = 0.2
builder.z = 0.3
}
let deathStar = DeathStar(builder:empire)
I have a clear focus on time-to-market and don't prioritize technical debt.
🛩️ #startups #management #cto #swift #typescript #database
📧 Email: sergey.leschev@gmail.com
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👋 Github: https://github.com/sergeyleschev
🌎 Website: https://sergeyleschev.github.io
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ALT: SIARHEI LIASHCHOU