Since PostgreSQL 9.1 There is the convenient FOREACH which can loop over slices of arrays. The manual: The target variable must be an array, and it receives successive slices of the array value, where each slice is of the number of dimensions specified by SLICE. DO $do$ DECLARE m text[]; arr text[] := ‘{{key1,val1},{key2,val2}}’; — … Read more
Use cell arrays. This has an advantage over 3D arrays in that it does not require a contiguous memory space to store all the matrices. In fact, each matrix can be stored in a different space in memory, which will save you from Out-of-Memory errors if your free memory is fragmented. Here is a sample … Read more
In addition to { get; set; }, these are some of the conditions for JSON Binding Support: This is new feature in ASP.NET MVC 3 (See “JavaScript and AJAX Improvements“). The JSON object’s strings (‘X’, ‘Y’, ‘Str’, and ‘Enabled’) must match ViewModel object’s properties. ViewModel object’s properties must have { get; set; } method. Must … Read more
TypeScript 3.4+ TypeScript version 3.4 has introduced so-called **const contexts**, which is a way to declare a tuple type as immutable and get the narrow literal type directly (without the need to call a function like shown above). With this new syntax, we get this nice concise solution: const furniture = [‘chair’, ‘table’, ‘lamp’] as … Read more
In PSv3+, with its unified handling of scalars and collections, any object – even $null – should have a .Count property (and, with the exception of $null, should support indexing with [0]). Any occurrence of an object not supporting the above should be considered a bug; for instance: Using this intrinsic (engine-supplied) .Count property unexpectedly … Read more
Edit: My original approach was shit. This post got a lot of traction, so it’s time to give it some more attention and improve it. Fundamentally, the problem is easy. We have two elements, and we have an array (or any ordered Collection) whose relative ordering determines their sort order. For every element, we find … Read more
I think the issue might be partly with how you’re accessing the elements. If I do a simple for elem in $FILES, I experience the same issue as you. However, if I access the array through its indices, like so, it works if I add the elements either numerically or with escapes: for ((i = … Read more
The C array char name[8] is imported to Swift as a tuple: (Int8, Int8, Int8, Int8, Int8, Int8, Int8, Int8) The address of name is the same as the address of name[0], and Swift preserves the memory layout of structures imported from C, as confirmed by Apple engineer Joe Groff: … You can leave the … Read more
mkString will convert collections (including Array) element-by-element to string representations. println(a.mkString(” “)) is probably what you want.
You should use the reduce method to sum your sequence elements as follow: Xcode Xcode 10.2+ • Swift 5 or later extension Sequence where Element: AdditiveArithmetic { /// Returns the total sum of all elements in the sequence func sum() -> Element { reduce(.zero, +) } } extension Collection where Element: BinaryInteger { /// Returns … Read more