C++17 zero-overhead syntactic sugar for variant and optional. std::variant and std::optional were introduced to C++17's Standard Library. They are sum types that can greatly improve type safety and performance.
cpp cpp17 cpp14 lambda visitation visit recursive scelta variant optional std boostMap visit over an array of objects. The above approach works fine for most use cases. But if you also want to emit an event each time a property is added to the data object. A better approach would be to use visit.
array arrays function helper invoke key map method object objects value visit visitorCall a specified method on each value in the given object. Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
visit object collection method context function helper key value visitorSimple API for managing options in JavaScript applications. Create a new instance of Options.
cache options option config settings configuration defaults get set add boolean default define disable disabled emit enable enabled event false fillin has is listener listeners merge off once opt opts remove true visitVisit a method over the items in an object, or map visit over the objects in an array. Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
array arrays collection context function helper invoke key map method object objects value visit visitorAgnostic tree traversal library. If you are really concerned about performance, you could read items from the stack directly. Each item has a node and index property that you can use. The first item in the stack can be discarded and will have a node set to null. Be aware that you should not mutate the stack, or it will break the traversal.
tree traversal visitor dfs bfs n-ary-tree k-ary-tree n-way-tree multiway-tree rose-tree generic agnostic traverse walk visit recursive breadth-first preorder postorderEnumerate all k length subsets in an array. If you want to use this in a browser, then you should use browserify.
combination visit iterate permutation k comb combinatorics arrayunist utility to visit nodes. This package is ESM only: Node 12+ is needed to use it and it must be imported instead of required.
syntax-tree util visit unist walk unist-util utility remark retext rehype mdast hast xast nlcst natural language markdown html xml tree ast nodeunist utility to visit nodes, with ancestral information. This package is ESM only: Node 12+ is needed to use it and it must be imported instead of required.
syntax-tree util visit unist unist-util utility tree ast traverse walk check parent parentsunist utility to create a new tree by mapping all nodes with the given function. This package is ESM only: Node 12+ is needed to use it and it must be imported instead of required.
map syntax-tree util unist unist-util utility node tree walk visitunist utility with equivalents for querySelector, querySelectorAll, and matches. Note that the DOM has references to their parent nodes, meaning that document.body.matches(':last-child') can be evaluated. This information is not stored in unist, so selectors like that don’t work.
select remark util retext matches unist queryselector selectall unist-util utility visit tree ast node walk selector child descendant sibling type attribute expression filter find match
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