val numbers: IntArray = intArrayOf(10, 20, 30, 40, 50) See Kotlin – Basic Types for details. You can also provide an initializer function as a second parameter: val numbers = IntArray(5) { 10 * (it + 1) } // [10, 20, 30, 40, 50]
Defining array with multiple types in TypeScript Use a union type (string|number)[] demo: const foo: (string|number)[] = [ 1, “message” ]; I have an array of the form: [ 1, “message” ]. If you are sure that there are always only two elements [number, string] then you can declare it as a tuple: const foo: … Read more
In newer versions of typescript you can use: type Customers = Record<string, Customer> In older versions you can use: var map: { [email: string]: Customer; } = { }; map[‘foo@gmail.com’] = new Customer(); // OK map[14] = new Customer(); // Not OK, 14 is not a string map[‘bar@hotmail.com’] = ‘x’; // Not OK, ‘x’ is … Read more
Very close! In your select expression, you have to use a pipe (|) before contains. This filter produces the expected output. . – map(select(.Names[] | contains (“data”))) | .[] .Id The jq Cookbook has an example of the syntax. Filter objects based on the contents of a key E.g., I only want objects whose genre … Read more
I think I’ve figured it out: a = [3, 2, 4, 6, 3, 8] a.delete(3) #=> 3 a #=> [2, 4, 6, 8]
You can concatenate the arrays with +, building a new array let c = a + b print(c) // [1.0, 2.0, 3.0, 4.0, 5.0, 6.0] or append one array to the other with += (or append): a += b // Or: a.append(contentsOf: b) // Swift 3 a.appendContentsOf(b) // Swift 2 a.extend(b) // Swift 1.2 print(a) … Read more
As swift is in some regards more functional than object-oriented (and Arrays are structs, not objects), use the function “find” to operate on the array, which returns an optional value, so be prepared to handle a nil value: let arr:Array = [“a”,”b”,”c”] find(arr, “c”)! // 2 find(arr, “d”) // nil Use firstIndex and lastIndex – … Read more
A 100% pure Bash function that supports multi-character delimiters is: function join_by { local d=${1-} f=${2-} if shift 2; then printf %s “$f” “${@/#/$d}” fi } For example, join_by , a b c #a,b,c join_by ‘ , ‘ a b c #a , b , c join_by ‘)|(‘ a b c #a)|(b)|(c join_by ‘ %s … Read more
Swift 2, 3, 4, 5: let elements = [1, 2, 3, 4, 5] if elements.contains(5) { print(“yes”) } contains() is a protocol extension method of SequenceType (for sequences of Equatable elements) and not a global method as in earlier releases. Remarks: This contains() method requires that the sequence elements adopt the Equatable protocol, compare e.g. … Read more
First, declare your Array as a typed array so that you can call methods when you iterate: var images : [imageFile] = [] Then you can simply do: Swift 2 images.sorted({ $0.fileID > $1.fileID }) Swift 3+ images.sorted(by: { $0.fileID > $1.fileID }) The example above gives the results in descending order.