Does JavaScript have a set?
Introduction to Sets in JavaScript. Sets are a new object type with ES6 (ES2015) that allow to create collections of unique values. The values in a set can be either simple primitives like strings or integers, but more complex object types like object literals or arrays can also be part of a set.Click to see…
Introduction to Sets in JavaScript. Sets are a new object type with ES6 (ES2015) that allow to create collections of unique values. The values in a set can be either simple primitives like strings or integers, but more complex object types like object literals or arrays can also be part of a set.Click to see full answer. Likewise, what is a set JavaScript?Sets in JavaScript. A set is a collection of items which are unique i.e no element can be repeated. Set in ES6 are ordered: elements of the set can be iterated in the insertion order. Set can store any types of values whether primitive or objects.Subsequently, question is, what is map () in JavaScript? Map in JavaScript. Map is a collection of elements where each element is stored as a Key, value pair. Map object can hold both objects and primitive values as either key or value. When we iterate over the map object it returns the key,value pair in the same order as inserted. what is the use of set in JavaScript? The Set object allows you to create a collection of unique values (each value can occur only once). Set can contain any type of value (primitives or object reference). Set stores elements in the insertion order .What is WeakMap in JavaScript?The WeakMap object is a collection of key/value pairs in which the keys are weakly referenced. The keys must be objects and the values can be arbitrary values.
