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15 sty 2024 · The set syntax binds an object property to a function to be called when there is an attempt to set that property. It can also be used in classes.
23 wrz 2024 · Set objects are collections of values. A value in the set may only occur once; it is unique in the set's collection. You can iterate through the elements of a set in insertion order.
27 mar 2023 · The Set() constructor creates Set objects. Note: Set() can only be constructed with new. Attempting to call it without new throws a TypeError. If an iterable object is passed, all of its elements will be added to the new Set. If you don't specify this parameter, or its value is null, the new Set is empty. A new Set object.
Complete JavaScript Set Reference. The reference contains descriptions and examples of all Set Properties and Methods. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
One way to play around with classes without frameworks/libraries would be using the property Element.className, which "gets and sets the value of the class attribute of the specified element." (from the MDN documentation).
The Set object lets you store unique values of any type, whether primitive values or object references.
21 kwi 2015 · Here's your example using immutable-js: const { Map, Set } = require('immutable'); var set = new Set(); set = set.add(Map({a:1})); set = set.add(Map({a:1})); console.log([...set.values()]); // [Map {"a" => 1}]
