I have a Mongo document which holds an array of elements. I’d like to reset the .handled attribute of all objects in the array where .profile = XX. The document is in the following form: { “_id”: ObjectId(“4d2d8deff4e6c1d71fc29a07”), “user_id”: “714638ba-2e08-2168-2b99-00002f3d43c0”, “events”: [{ “handled”: 1, “profile”: 10, “data”: “…..” } { “handled”: 1, “profile”: 10, “data”: … Read more
I have tried: const ascii = “abcdefghijklmnopqrstuvwxyz” const letter_goodness []float32 = { .0817,.0149,.0278,.0425,.1270,.0223,.0202, .0609,.0697,.0015,.0077,.0402,.0241,.0675, .0751,.0193,.0009,.0599,.0633,.0906,.0276, .0098,.0236,.0015,.0197,.0007 } const letter_goodness = { .0817,.0149,.0278,.0425,.1270,.0223,.0202, .0609,.0697,.0015,.0077,.0402,.0241,.0675, .0751,.0193,.0009,.0599,.0633,.0906,.0276, .0098,.0236,.0015,.0197,.0007 } const letter_goodness = []float32 { .0817,.0149,.0278,.0425,.1270,.0223,.0202, .0609,.0697,.0015,.0077,.0402,.0241,.0675, .0751,.0193,.0009,.0599,.0633,.0906,.0276, .0098,.0236,.0015,.0197,.0007 } The first declaration and initialization works fine, but the second, third and fourth don’t work. How can I declare … Read more
I can’t think of a one line way to do this. Is there a way? 7 Answers 7
An NSSet can be converted to Array using set.allObjects() but there is no such method in the new Set (introduced with Swift 1.2). It can still be done by converting Swift Set to NSSet and use the allObjects() method but that is not optimal. 6 Answers 6
Looking the “Array” section in the bash(1) man page, I didn’t find a way to slice an array. So I came up with this overly complicated function: #!/bin/bash # @brief: slice a bash array # @arg1: output-name # @arg2: input-name # @args: seq args # ———————————————- function slice() { local output=$1 local input=$2 shift 2 … Read more
I have a string “1,2,3,4” and I’d like to convert it into an array: [1,2,3,4] How? 5 Answers 5
How can I extend Swift’s Array<T> or T[] type with custom functional utils? Browsing around Swift’s API docs shows that Array methods are an extension of the T[], e.g: extension T[] : ArrayType { //… init() var count: Int { get } var capacity: Int { get } var isEmpty: Bool { get } func … Read more
I was going through the exercises in Ruby Koans and I was struck by the following Ruby quirk that I found really unexplainable: array = [:peanut, :butter, :and, :jelly] array[0] #=> :peanut #OK! array[0,1] #=> [:peanut] #OK! array[0,2] #=> [:peanut, :butter] #OK! array[0,0] #=> [] #OK! array[2] #=> :and #OK! array[2,2] #=> [:and, :jelly] #OK! … Read more
In Swift, is there a clever way of using the higher order methods on Array to return the 5 first objects? The obj-c way of doing it was saving an index, and for-loop through the array incrementing index until it was 5 and returning the new array. Is there a way to do this with … Read more
This question already has answers here: Creating an array from a text file in Bash (6 answers) Closed 6 years ago. I am trying to read a file containing lines into a Bash array. I have tried the following so far: Attempt1 a=( $( cat /path/to/filename ) ) Attempt2 index=0 while read line ; do … Read more
