Local Computed Variables.swift

// Somthing like this:
func parseElement(name: String, text: String) {
    let trimmed = text.trimmingCharacters(in: .whitespaces)
    if name == "trk" {
        let t = trimmed
        // process element
    } else if name == "ele" {
        guard let elevation = Int(trimmed) else { return }
    } else {
        // no need to trim text
    }
}

// To this:
func parseElement(name: String, text: String) {
    var trimmed: String { text.trimmingCharacters(in: .whitespaces) }
    if name == "trk" {
        let t = trimmed
        // process element
    } else if name == "ele" {
        guard let elevation = Int(trimmed) else { return }
    } else {
        // no need to trim text
    }
}


// Somthing like this:
while !done && queue.count > 1 && queue[1] != "stop" {
    // process the queue
}

// To this:
var canContinue: Bool { return queue.count > 1 && queue[1] != "stop" }
while !done && canContinue {
    // process the queue
}