I'm puzzled as why this code doesn't work: package main import ( "fmt" "sort" ) type T [2]int func (t T) Len() int { return len(t) } func (t T) Swap(i, j int) { t[i], t[j] = t[j], t[i] } func (t T) Less(i, j int) bool { return t[i] < t[j] } func main() { var x = [2]int{1, 0} fmt.Println(x) sort.Sort(T(x)) fmt.Println(x) } It outputs (incorrectly): [1 0] [1 0] Changing the type of T to slices does
You should use reflect.DeepEqual() DeepEqual is a recursive relaxation of Go's == operator. DeepEqual reports whether x and y are “deeply equal,” defined as follows. Two values of identical type are deeply equal if one of the following cases applies. Values of distinct types are never deeply equal. Array values are deeply equal when their corresponding elements are deeply equal. Struct values are
In the video below, at time marker 21:40, the Microsoft PDC presenter says it's important that all JSON be wrapped so it's not a top level array: https://channel9.msdn.com/Events/PDC/PDC09/FT12 What is the risk of an unwrapped top level array? How should I check and see if I'm vulnerable? I purchase many components from 3rd parties and have external vendors who develop my code.
I would like to merge arrays in YAML, and load them via ruby - some_stuff: &some_stuff - a - b - c combined_stuff: <<: *some_stuff - d - e - f I'd like to have the combined array as [a,b,c,d,e,f] I receive the error: did not find expected key while parsing a block mapping How do I merge arrays in YAML?
Short answer For an integer range : Enumerable#sum returns (range.max-range.min+1)*(range.max+range.min)/2 Enumerable#inject(:+) iterates over every element. Theory The sum of integers between 1 and n is called a triangular number, and is equal to n*(n+1)/2. The sum of integers between n and m is the triangular number of m minus the triangular number of n-1, which is equal to m*(m+1)/2-n*(n-1)/2,
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