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Map - JavaScript | MDN - MDN Web Docs
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map
The Map object holds key-value pairs and remembers the original insertion order of the keys. Any value (both objects and primitive … See more Map objects are collections of key-value pairs. A key in the Map may only occur once; it is unique in the Map's collection. A Map object is iterated by key-value pairs — a f… These properties are defined on Map.prototype and shared by all Map instances. Map.prototype.constructor Map[@@species] Map.groupBy()
Map objects are collections of key-value pairs. A key in the Map may only occur once; it is unique in the Map's collection. A Map object is iterated by key-value pairs — a f…
These properties are defined on Map.prototype and shared by all Map instances.
Map.prototype.constructor
Map[@@species]
Map.groupBy()
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Map
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map
AboutExamplesConstructorPropertiesMethodsStatic PropertiesStatic Methods JavaScriptconst myMap = new Map();const keyString = "a string";const keyObj = {};const keyFunc = function () {};// setting the valuesmyMap.set(keyString, "value associated with 'a string'");myMap.set(keyObj, "value associated with keyObj");myMap.set(keyFunc, "value associated with keyFunc");console.log(myMap.size); // 3// getting the valuesconsole.log(myMap.get(keyString)); // "value associated with 'a string'"console.log(myMap.get(keyObj)); // "value associated with keyObj"console.log(myMap.get(keyFunc)); // "value associated with keyFunc"See MoreContent Under CC-BY-SA licenseWas this helpful?See results from:
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Array.prototype.map() - JavaScript | MDN - MDN Web Docs
https://www.freecodecamp.org/news/array-map-tutorial/
WebNov 27, 2023 · The map() method of Array instances creates a new array populated with the results of calling a provided function on every element in the calling array. Try it. Syntax. …
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JavaScript Array map() Method - W3Schools
https://stackoverflow.com/questions/54513690/how-to-iterate-a-map-object
WebLearn how to use map () to create a new array from calling a function for every array element. See the syntax, parameters, return value, and examples of map () in this …
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JavaScript Maps - W3Schools
https://www.w3schools.com/js/js_maps.asp
WebLearn how to create, set, get, delete, and iterate over a Map in JavaScript. A Map is a data structure that holds key-value pairs where the keys can be any datatype and the order is …
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Map - JavaScript | MDN
http://devdoc.net/web/developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Map.html
WebJun 20, 2017 · Referência de JavaScript. Standard built-in objects. Map. In This Article. The Map object holds key-value pairs. Any value (both objects and primitive values) may be …
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