deep-freeze - recursively Object.freeze() on objects and functions

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Call Object.freeze(obj) recursively on all unfrozen properties of obj that are functions or objects.Based in part on the code snippet from the MDN wiki page on Object.freeze(), which is released to the public domain.

freeze deep object recursive

superstruct - A simple and composable way to validate data in Javascript.

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A simple and composable way to validate data in JavaScript. Superstruct makes it easy to define interfaces and then validate JavaScript data against them. Its type annotation API was inspired by Typescript, Flow, Go, and GraphQL, giving it a familiar and easy to understand API.

validation types interface structs schema api array assert cast check checker collection data error express hapi invalid joi json list model object orm scalar struct throw type valid validate validator

Watch.JS - watch the changes of any object or attribute

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Watch.JS is a small library with a lot of possibilities. You may know that the "Observer" design pattern involves executing some function when an observed object changes. Other libraries exist that do this, but with Watch.JS you will not have to change the way you develop. Take a look at the examples to see how simple it is to add Watch.JS to your code. If you don't want to call a second watcher in the current scope just set WatchJS.noMore to true and it will be reset to false when this watcher finishes.

watch object changes

just - A library of dependency-free utilities that do just do one thing.

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A library of zero-dependency npm modules that do just do one thing. A guilt-free alternative to those bulkier utility libraries. Ideal for mobile web development or wherever bytes are precious. We welcome contributions. Please follow our contribution guidelines.

dependency-free utils mobile-web node array object function

ow - Function argument validation for humans

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Test if value matches the provided predicate. Create a reusable validator.

validation type-checking nodejs npm-package type types check checking guard guards assert assertion predicate predicates is validate utility util typeof instanceof object

flat - :steam_locomotive: Flatten/unflatten nested Javascript objects

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Take a nested Javascript object and flatten it, or unflatten an object with delimited keys.Use a custom delimiter for (un)flattening your objects, instead of ..

flat json flatten unflatten split object nested

object-assign - ES2015 Object.assign() ponyfill

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Node.js 4 and up, as well as every evergreen browser (Chrome, Edge, Firefox, Opera, Safari), support Object.assign() 🎉. If you target only those environments, then by all means, use Object.assign() instead of this package.Assigns enumerable own properties of source objects to the target object and returns the target object. Additional source objects will overwrite previous ones.

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on-change - Watch an object or array for changes

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It works recursively, so it will even detect if you modify a deep property like obj.a.b[0].c = true.Uses the Proxy API.

on change watch object array changes observe watcher observer proxy proxies es2015 event listener

nodecache - a node internal caching module

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A simple caching module that has set, get and delete methods and works a little bit like memcached. Keys can have a timeout (ttl) after which they expire and are deleted from the cache. All keys are stored in a single object so the practical limit is at around 1m keys. Since 4.1.0: Key-validation: The keys can be given as either string or number, but are casted to a string internally anyway. All other types will either throw an error or call the callback with an error.

nodejs cache memory internal caching fast local variable multi node memcached object

object-hash - Generate hashes from javascript objects in node and the browser.

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Generate hashes from objects and values in node and the browser. Uses node.js crypto module for hashing. Supports SHA1 and many others (depending on the platform) as well as custom streams (e.g. CRC32). Starting with version 1.1.8 (released April 2017), new versions will consider the exact returned hash part of the API contract, i.e. changes that will affect hash values will be considered semver-major. Previous versions may violate that expectation.

object hash sha1 md5

icaro - Smart and efficient javascript object observer, ideal for batching DOM updates (~1kb)

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icaro is really fast compared to the other reactive libs because it smartly throttles all the state changes. icaro will let you listen to all the changes happening in a javascript object or array, grouping them efficiently, and optimizing the performance of your listeners.

observable proxy object object-listener object-observer streams object-observable object-watch

generate-schema - Convert JSON Objects to MySQL Schema, JSON Schema, Mongoose Schema, Google BigQuery, or a Generic template for Swagger files, documentation, code generation, and more

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Convert JSON Objects to MySQL Table Schema, JSON Schema, Mongoose Schema, ClickHouse Schema, Google BigQuery, or a Generic template for documentation, code generation, and more. Optionally, add -g to the above if you want the generate-schema command line executable.

json schema object convert manipulate traverse types type is generate produce mongoose generic validation bigquery google data datatypes

is - Type check values: `is.string('🦄') //=> true`

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Returns the type of value.Primitives are lowercase and object types are camelcase.

type types is check checking validate validation utility util typeof instanceof object assert assertion test kind primitive verify compare

object-graph - Provides useful operations on PHP object graphs

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Provides useful operations on PHP object graphs. The object_graph_dump() function supports the DOT Graph Description Language (.dot), Portable Document Format (.pdf), Portable Network Graphics (.png), and Scalable Vector Graphics (.svg) output formats.

object visualization

queryl - :mag_right: Query language to perform complex object searches

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Query language to perform complex object searches.

query object json search

jsonpath - Query and manipulate JavaScript objects with JSONPath expressions

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Query JavaScript objects with JSONPath expressions. Robust / safe JSONPath engine for Node.js. Here are syntax and examples adapted from Stefan Goessner's original post introducing JSONPath in 2007.

jsonpath json-path object traversal json path data-structures

Fluent O' Mapper

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FluentOMapper (FOM) is a framework to describe an execute mappings from objects tree to others using their properties (getters and setters). It uses lambda expressions to describe mapping, so refactoring is simple. Easy to use either for DTO or complex situations, FOM provid...

clone copy dto mapper mapping nhibernate object

hashmap - HashMap JavaScript class for Node

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HashMap Class for JavaScript

hashmap nodejs npm node map array key-value flesler object associative browser data-structure collections

scour - Traverse objects and arrays with ease

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Calling scour(object) returns a wrapper that you can use to traverse object. Use get() to retrieve values.Use go() to dig into the structure. It will return another scour wrapper scoped to that object.

array immutable object

xtend - extend like a boss

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xtend is a basic utility library which allows you to extend an object by appending all of the properties from each object in a list. When there are identical properties, the right-most property takes precedence.

extend merge options opts object array