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Leaflet is a JavaScript library used to build web mapping applications. It allows developers without a GIS background to display tiled web maps hosted on a public server, with optional tiled overlays. It can load feature data from GeoJSON files, style it and create interactive layers, such as markers with popups when clicked.
The Tcl Tcllib package provides a set module which implements a set data structure based upon TCL lists. The Swift standard library contains a Set type, since Swift 1.2. JavaScript introduced Set as a standard built-in object with the ECMAScript 2015 [10] standard. Erlang's standard library has a sets module.
Mori.js brings data structures similar to those in Clojure to JavaScript. [32] Immer.js brings an interesting approach where one "creates the next immutable state by mutating the current one". [33] Immer.js uses native JavaScript objects and not efficient persistent data structures and it might cause performance issues when data size is big.
Map functions can be and often are defined in terms of a fold such as foldr, which means one can do a map-fold fusion: foldr f z . map g is equivalent to foldr (f . g) z. The implementation of map above on singly linked lists is not tail-recursive, so it may build up a lot of frames on the stack when called with a large list. Many languages ...
Priority queue: A priority queue is an abstract concept like "a list" or "a map"; just as a list can be implemented with a linked list or an array, a priority queue can be implemented with a heap or a variety of other methods. K-way merge: A heap data structure is useful to merge many already-sorted input streams into a single sorted output ...
The Sunset Fire broke out the evening of Jan. 8 in the Runyon Canyon area of the Hollywood Hills, forcing a new set of evacuations. It had burned dozens of acres of vegetation, officials said.
Russian forces are advancing in Ukraine at the fastest rate since the early days of the 2022 invasion, taking an area half the size of London over the past month, analysts and war bloggers say.
This is a list of well-known data structures. For a wider list of terms, see list of terms relating to algorithms and data structures. For a comparison of running times for a subset of this list see comparison of data structures.